JP6036421B2 - Road management support method, road management support device, and road management support program - Google Patents

Description

  The present invention relates to a road management support method, a road management support device, and a road management support program.

  In road management, grasping the road surface conditions and inferring factors that hinder the smooth running of the vehicle, and responding quickly to snow and freezing, etc., can prevent road accidents and traffic jams that can be predicted later. This is very important for safe operation.

  In such road management work, the manager actually patrols the road to be managed with a patrol car, and the manager directly confirms the road surface condition and the traffic jam condition visually. In addition, the administrator confirms the images from the monitoring cameras installed at regular intervals on the road to be managed at the monitoring center. Further, the manager determines the road surface condition and the traffic jam condition based on the confirmation result obtained by the above-described confirmation method, and performs each countermeasure.

  For example, there is a method for detecting a dangerous vehicle such as a decrease in visibility due to bad weather, a stop, a low speed, or the like (for example, see Patent Document 1).

JP 2005-338951 A

  However, when the manager actually goes to the site and directly confirms it visually, the burden on the manager and labor costs increase. Furthermore, when monitoring is performed using video from a camera installed on the road, it is necessary to make the manager resident for 24 hours, which increases the labor load.

  In one aspect, an object of the present invention is to provide appropriate road management support for an administrator.

Road management support method in one aspect, the road management support apparatus, based on the used measurement results obtained from measuring means for measuring the speed of vehicles traveling visibility before SL road managed road, the road Determining a change in the state, estimating the road surface condition of the road based on the determined change in the state of the road , according to the estimated road surface condition of the road and the measurement result, selecting a notification destination, Based on the selection, a notification is transmitted to the selected transmission destination.

  Appropriate road management support for managers can be provided.

It is a figure which shows an example of schematic structure of a road management assistance system. It is a figure which shows an example of a function structure of a road management assistance apparatus. It is a figure which shows an example of the hardware constitutions of a road management assistance apparatus. It is a flowchart which shows an example of a process of a road management assistance apparatus. It is a figure which shows the example of data in this embodiment. It is a figure which shows an example of state change determination. It is a figure which shows an example of an estimation table.

  Hereinafter, embodiments will be described in detail with reference to the accompanying drawings.

<Example of schematic configuration of road management support system>
FIG. 1 is a diagram illustrating an example of a schematic configuration of a road management support system. A road management support system 10 shown in FIG. 1 includes one or more visibility meters (first measurement means) 11, one or more millimeter wave sensors (second measurement means) 12, and a road management support device 13. , An administrator terminal 14, a user terminal 15, and a road information board 16. The visibility meter 11, the millimeter wave sensor 12, the road management support device 13, the manager terminal 14, and the road information board 15 are transmitted via a communication network 17 such as the Internet, a LAN (Local Area Network), or a telephone line. Are connected in a state where transmission / reception is possible. The communication network 17 may be wired, wireless, or a combination thereof.

  In the example of FIG. 1, visibility meters 11-1 and 11-2 are installed on the road 20 to be managed at predetermined intervals or at predetermined positions (for example, entrances and exits of tunnels, heavy traffic congestion points, etc.). Although the millimeter wave sensors 12-1 and 12-2 are installed at a predetermined interval, the present invention is not limited to this.

  The road management support system 10 according to the present embodiment is based on the measurement results obtained from the visibility meter 11 and the millimeter wave sensor 12, for example, and the road surface condition (for example, snow, freezing, wetting, drying) of the installed road 20 or the like. Is estimated. The road management support system 10 selects an administrator to be notified when it is determined that notification to the administrator is necessary in accordance with, for example, a change in road condition or the above-described estimation result, etc. A notification to that effect is transmitted to the administrator terminal 14 or the like.

  As shown in FIG. 1, the visibility meter (first measurement means) 11 is installed in the vicinity of the target road 20 for grasping the road surface condition, and measures the visibility in the vicinity of the road 20. A plurality of visibility meters 11 may be installed at predetermined intervals, or may be installed at a preset place where road surface conditions such as the vicinity of the foot of a mountain or the entrance / exit of a tunnel are likely to change, but are not limited thereto. It is not something.

  The visibility meter 11 can measure the extinction rate or light transmittance of the atmosphere, for example, and can acquire visibility from the obtained measured value. For example, the visibility meter 11 transmits light to a predetermined space from, for example, an installed position, receives reflected light reflected by particles in the air in the space, and measures the amount of reflection by fine particles at the installed position. To do. Note that the visibility measurement method is not limited to this.

  Information obtained from the visibility meter 11 includes time, position information (for example, latitude and longitude, altitude, etc.), visibility distance, and the like, but is not limited thereto. The visibility distance is a value set corresponding to the amount of reflection reflected by the particles in the air in the space described above, but is not limited to this. The visibility meter 11 transmits the obtained information to the road management support device 16 via the communication network 17 at a predetermined timing (for example, at intervals of several seconds or minutes).

  As the visibility meter 11, for example, “Intelligent visibility meter WB7530 series” manufactured by Yokogawa Electronic Equipment Co., Ltd., “Visibility sensor PWD20” manufactured by Vaisala Co., Ltd., or the like can be used, but is not limited thereto. .

  As shown in FIG. 1, the millimeter wave sensor (second measuring means) 12 is installed at a high level of a road 20 to be grasped, and uses, for example, a road of millimeter waves with respect to the road 20. The distance, direction, traveling speed, etc. with the vehicle 21 traveling 20 are acquired. The millimeter wave is, for example, a radio wave having a frequency of about 30 GHz to 300 GHz (wavelength: 1 mm to 1 cm), but is not limited thereto. Millimeter waves are less attenuated by snow or fog than light waves (visible, infrared), for example.

  For example, the millimeter wave sensor 12 transmits a millimeter wave (radar) from the installed position to the road 20, receives a reflected wave from the detection target, and receives the vehicle position, speed, and ± direction (forward (+ ) Or reverse run (-)) etc. Note that the information measured by the millimeter wave sensor 12 is not limited to the above-described content, and it is sufficient that the information at least the vehicle 21 speed is known. The information indicating the vehicle speed may be the vehicle speed itself, or may be information on distance and time. Further, the configuration is not limited to the millimeter wave sensor 12 as long as the vehicle speed can be detected.

  In the present embodiment, an imaging device such as a camera can be installed instead of the millimeter wave sensor 12, and the vehicle speed can be detected from the camera image. In the case of a camera, for example, there is a possibility that a vehicle that does not exist is erroneously detected due to reflection of a headlight when reflection occurs at night or on a wet road surface. On the other hand, in the case of the millimeter wave sensor 12, the above-described problem does not occur because the millimeter wave sensor 12 is not easily affected by changes in the surrounding environment. Therefore, compared to the case where the vehicle speed is detected by the camera, the timing at which the vehicle speed can be detected can be increased by using the millimeter wave sensor 12. Further, by using the millimeter wave sensor 12, the vehicle 21 can be appropriately detected and target information can be acquired.

  Examples of information obtained from the millimeter wave sensor 12 include, but are not limited to, time, position information (for example, latitude / longitude and altitude), vehicle speed, cross-sectional traffic volume, and the like. The millimeter wave sensor 12 transmits the obtained information to the road management support apparatus 13 via the communication network 17 at a predetermined timing (for example, every several seconds or several minutes).

  The visibility meter 11 and the millimeter wave sensor 12 can be installed at the same point on the road 20 as shown in FIG. 1, but are not limited thereto. By using information from the visibility meter 11 and the millimeter wave sensor 12 installed at the same point on the road 20, the road condition at that point can be appropriately estimated.

  The visibility meter 11 and the millimeter wave sensor 12 described above may be configured by a single measuring unit. In other words, the road data obtained from the visibility meter 11 and the millimeter wave sensor 12 described above can be acquired from one measuring means.

  The road management support device 13 is based on information obtained from one or more visibility meters 11 and millimeter wave sensors 12 via the communication network 17, and a road 20 near the point where the visibility meters 11 and millimeter wave sensors 12 are installed. Guess the road surface condition. For example, the road management support apparatus 13 can detect the flow of the vehicle 21 on the road 20 and easily determine the road surface condition, and can transmit the road surface condition to a predetermined manager terminal 14 according to the determination result.

  For example, the road management support device 13 selects a predetermined manager from a plurality of managers set in advance corresponding to the deterioration level of the road surface condition, and the manager associated with the selected manager. The terminal 14 may be notified of the road surface condition. The manager is, for example, a road manager or a traffic manager (for example, police), but is not limited thereto. The manager can also be classified into, for example, a responsible person level and a responsible person level.

  The road management support device 13 manages contact information (for example, a telephone number, an e-mail address, terminal identification information, etc.) of the manager terminal 14 associated in advance for each manager. Therefore, the road management support device 13 acquires the contact information of the manager to be notified from the above-described contact information and the like, and relates to the estimation result of the road surface condition with respect to the acquired contact (destination). Send notifications.

  As a result, the administrator does not always manage the road conditions, but once notified, the road manager should confirm the situation again with patrols and surveillance camera images, and take measures such as snow removal and snow melting agent spraying. Can reduce the workload.

  In addition, the road management support device 13 is connected to the user terminal 15 used by the driver (user) of the vehicle 21 connected via the communication network 17 according to an instruction from the administrator or the like, for example, and the road surface condition and caution of the road 20 Etc. may be notified. In addition, the road management support device 13 displays the road surface condition, cautions, etc. of the road 20 on the road information board 16 connected via the communication network 17 in accordance with an instruction from an administrator or the like, for example. You may notify the driver who drives.

  The road management support device 13 is, for example, a personal computer (PC) or a server, but is not limited to this. The road management support device 13 may be, for example, cloud computing having one or more information processing devices.

  The manager terminal 14 is a terminal used by a preset manager such as a road manager or a traffic manager. The administrator information for the administrator terminal 14 is registered in the road management support device 13 in advance. When the road management support device 13 estimates the road surface condition and determines that notification is necessary, the administrator terminal 14 is notified of the estimation result.

  The user terminal 15 is a user terminal that uses the road 20 managed in the road management support system 10 in the present embodiment. The user is, for example, a driver who drives the vehicle 21, but is not limited to this, and may be any user registered in the road management support system 10, for example.

  When the user terminal 15 determines that it is better to call attention to the road surface condition of a road according to an instruction from an administrator or the like, the user terminal 15 sends a predetermined message such as the road location information and warning information to the road. Received from the management support apparatus 13 and displays the received content. The administrator terminal 14 and the user terminal 15 are communication terminals such as a PC, a tablet terminal, a smartphone, and a mobile phone.

  The road information board 16 is installed at a position where the driver who drives the vehicle 21 passing through the road 20 can refer to the display contents. The road information board 16 displays a message for calling attention to a driver or the like who is driving on the road 20 to be managed or is going to run.

  The road information board 16 displays, for example, the message described above in response to an instruction from the administrator who has received a notification from the road management support device 13, but is not limited to this, and the road management support device 13 estimates the road surface condition. At that time, a process for displaying that effect may be performed. In addition, although the road information board 16 is an electronic bulletin board etc., for example, it is not limited to this.

  According to the above-described embodiment, appropriate road management support for the administrator can be performed. In addition, the administrator can promptly detect the abnormality of the road even if the video from the monitoring camera or the like installed on the road is not constantly monitored. Furthermore, according to the present embodiment, an appropriate situation determination can be made quickly by checking the road conditions using patrol and a monitoring camera installed on the target road 20 using the estimation result of the road surface condition as a trigger. be able to. Therefore, an administrator or the like can perform road management tasks such as snow removal and snow melting agent spraying.

<Example of Functional Configuration of Road Management Support Device 13>
Next, a functional configuration example of the road management support device 13 will be described with reference to the drawings. FIG. 2 is a diagram illustrating an example of a functional configuration of the road management support apparatus. The road management support apparatus 13 shown in FIG. 2 includes an input unit 31, an output unit 32, a storage unit 33, a road data collection unit 34, a state change determination unit 35, a road surface state estimation unit 36, and a notification determination unit. 37, a notification means 38, a transmission / reception means 39, and a control means 40.

  The input unit 31 receives various inputs such as start and end of various instructions, input of settings, and the like from a user (for example, an administrator) who uses the road management support device 13. For example, the input unit 31 receives instructions such as a road data collection instruction, a state change determination instruction, a road surface state estimation instruction, a notification determination instruction, a notification instruction, and a transmission / reception instruction in the present embodiment. The input means 31 may be, for example, a keyboard or a mouse, or may be a touch panel type using a screen, a microphone, or the like, but may be limited to this.

  The output unit 32 outputs the content input by the input unit 31 and the content executed based on the input content. For example, the output means 32 may be a display means such as a display or a monitor when outputting by screen display, and may be an audio output means such as a speaker when outputting by sound, but is not limited thereto. May be.

  The storage unit 33 stores various types of information necessary in the present embodiment. For example, the storage unit 33 stores instruction information obtained from the input unit 31, various road data obtained by the road data collection unit 34, state change determination results, road surface state estimation results, notification determination results, notification information, and the like. Note that the information stored in the storage unit 33 is not limited to the information described above. For example, various setting information for executing road management support processing in this embodiment, administrator information, service use such as a driver, etc. Person information, process progress and results are stored.

  The storage means 33 reads and writes various stored information at a predetermined timing as necessary. Further, the storage means 33 may function as a database structured systematically so that such information can be searched and extracted using, for example, keywords. The storage means 33 is, for example, a hard disk or a memory, but is not limited thereto.

  The road data collecting means 34 collects measurement results obtained from various sensors (measuring means) for the road to be managed as road data. For example, as shown in FIG. 2, the road data collecting unit 34 receives the measurement results by the visibility meter 11 and the millimeter wave sensor 12, but is not limited to this, for example, other measurement units installed near the road Traveling data such as car attributes (for example, large cars, small cars) may be collected. Further, the road data collecting means 34 may collect traffic data at a certain point, environmental data such as weather, air temperature, road surface temperature, etc. at a certain point, facility information data such as an operating state of each measuring means, and the like.

  The road data collecting unit 34 may receive and collect road data transmitted by each measuring unit at a predetermined timing, for example, or may be a predetermined timing with respect to each measuring unit installed on the road to be managed. The road data or the like may be collected by making a measurement data acquisition request. The road data collection unit 34 stores the collected data in the storage unit 33.

  Based on the road data collected by the road data collection unit 34, the state change determination unit 35 determines whether any state change has occurred on the management target road 20. For example, the state change determination unit 35 acquires the visibility situation from the road data obtained from the visibility meter 11, and compares the obtained visibility situation with the previous (immediately) visibility situation to determine whether or not a state change has occurred. Determine whether or not.

  In addition, the state change determination unit 35 may determine whether or not the state has deteriorated by comparing, for example, the current visibility situation acquired from road data with a preset threshold value. In this case, the state change determination unit 35 may determine the state change by setting the visibility level as “good” when the visibility distance is 100 m or more and “bad” when the distance is less than 100 m, for example.

  Further, the state change determination means 35 compares the vehicle speed or cross-sectional traffic obtained from the millimeter wave sensor 12 with the vehicle speed or cross-sectional traffic up to now (previous) to determine whether or not a state change has occurred. Determine.

  In addition, the state change determination unit 35 may determine whether or not the state has deteriorated by comparing, for example, the current vehicle speed or cross-sectional traffic obtained from the road data with a preset threshold value. In this case, the state change determination means 35 obtains, for example, whether the vehicle 21 is stopped, is traveling at a low speed, or is traveling at a normal speed or more, and the state change of the road 20 is determined based on the result. Good.

  For example, when the vehicle speed is slower than the first threshold, the state change determination means 35 regards it as “stop”, and if it is between the first threshold and the second threshold, regards it as “low”. If it is faster than the second threshold, the state change may be determined by setting the speed level to be equal to or higher than the normal speed. The first threshold varies depending on the road type (for example, general road, highway, etc.) and the road structure (for example, straight line, curve, slope, etc.), but may be set at about 10-20 km / h, for example. it can. The second threshold value is set at a speed faster than the first threshold value described above, and can be set, for example, at about 30 to 40 km / h. However, the first and second threshold values are not limited thereto. It is not limited.

  The road surface state estimation unit 36 estimates the road surface state of the road 20 when the state change determination unit 35 determines that the road surface state of the road 20 has changed. For example, the road surface state estimation means 36 determines the road surface state of the road 20 to be managed based on the visibility state obtained from the visibility meter 11 described above and the vehicle speed and cross-sectional traffic obtained from the millimeter wave sensor 12. Estimate whether it has deteriorated or not. Moreover, the road condition estimation means 36 may estimate the deterioration level of the road surface condition (for example, it is a little worse or considerably worse). The road condition estimating means 36 may not only estimate that the road surface condition has deteriorated, but also estimate that the road surface condition has improved.

  For example, the road surface condition estimating means 36 uses seasonal information (for example, summer or winter) using date information associated with road data acquired by each measuring means (such as the visibility meter 11 and the millimeter wave sensor 12). And the road surface condition may be estimated corresponding to the acquired seasonal information. For example, the road surface condition estimation unit 36 acquires position information (for example, latitude / longitude and altitude) where each measurement unit (the visibility meter 11, the millimeter wave sensor 12, etc.) is installed, and corresponds to the acquired position information. The road surface condition may be estimated.

  Thereby, the road surface condition estimation means 36 performs estimation more appropriately such as snow on the road surface, for example, when the season information is winter (for example, around December to February) or when the altitude is high. be able to.

  For example, the road surface state estimation means 36 estimates the road surface state at the installed point from the road surface state estimation result based on the road data from the visibility meter 11 or the millimeter wave sensor 12 installed at one or a plurality of points. May be. Further, the road surface state estimation means 36 may estimate the road surface state after several hours using the estimation result of the current road surface state, the past statistical result, and the like.

  The notification determination unit 37 determines whether to notify the administrator based on the determination result obtained by the state change determination unit 35. The notification determination unit 37 may determine whether to notify the administrator based on the estimation result by the road surface condition estimation unit 36.

  The notification determination unit 37 selects a manager to be notified from among one or a plurality of preset administrators in accordance with the determination result of the state change and the estimation result (for example, the deterioration level) of the road surface condition described above. be able to.

  For example, the notification determination means 37 notifies the road manager and the traffic manager if the level is estimated to be “the snow is piled on the road surface”, and “the road surface is a little worse” or “deteriorated”. If the level is estimated to be “in tendency”, only the road manager is notified.

  In addition, the notification determination unit 37 notifies when the road surface condition has deteriorated and has not yet notified the administrator, and does not repeatedly notify when the notification has already been performed. You may do it. As a result, the administrator can eliminate the waste of receiving the same content notification many times. Moreover, the road management support apparatus 13 can eliminate the waste of notifying the same information many times and can perform efficient communication.

  In the present embodiment, the number of notifications of the same content may be limited by an instruction from an administrator or the like. For example, the notification determination unit 37 can notify the same information to the administrator until a predetermined number of times (for example, three times) is exceeded. Thereby, since the administrator can receive again the notification content that has been missed, the administrator can be surely confirmed the notification content.

  Furthermore, the notification determination unit 37 may select and notify another manager who has not yet notified when the same manager is notified of the same content. In this case, the notification determination unit 37 can select an administrator based on, for example, a preset priority order of the administrator. As a result, the road management support device 13 promptly responds to the deterioration of road conditions by notifying other managers when the manager who has been notified cannot cope with other tasks (for example, emergency use). Can be done.

  Note that the notification determination unit 37 does not give a notification because there is no need for management by the administrator when the road surface condition is estimated to have improved in the estimation result by the road surface state estimation unit 36, for example. There is no limitation, and notification to that effect may be made.

  When it is determined by the notification determining unit 37 that the notification is determined, the notifying unit 38 receives a notification corresponding to the determination result obtained by the state change determining unit 35, the content of the road surface state estimated by the road surface state estimating unit 36, or the like. Transmission is performed to one or a plurality of administrator terminals 14. For example, the notification means 38 is a notification content corresponding to the position of the target road, the determination result obtained from the state change determination means 35, the estimation result (for example, the deterioration level) of the road surface condition obtained from the road surface condition estimation means 36, and the like. (For example, whether or not it is an emergency) is transmitted to the administrator terminal 14 corresponding to the administrator selected by the notification determination unit 37.

  For example, the notification means 38 may send a notification by e-mail using preset contact information of the administrator, and is set in advance to call the administrator's telephone number and notify the road surface condition. However, the present invention is not limited to this. For example, the notification unit 38 may activate a dedicated application installed in advance on the administrator terminal 14 to display a message corresponding to the road surface condition or sound an alarm from the administrator terminal 14.

  In addition, the notification unit 38 may transmit and display a notification about road surface conditions, a warning, or the like to the above-described user terminal 15 or the road information board 16 according to an instruction from an administrator, for example. In addition, the communication unit 38 may display a notice of road surface conditions, a warning, or the like on a site where traffic conditions preset by Web distribution or the like can be browsed by a browser or the like according to an instruction from an administrator or the like. The notification means 38 may notify a combination of a plurality of the notification methods described above.

  The transmission / reception means 39 is a communication means for transmitting / receiving various information to / from an external device via the communication network 17 described above, for example. The transmission / reception means 39 can receive various kinds of information already stored in the external device etc., and transmits the result processed by the road management support device 13 to the external device etc. via the communication network 17 etc. You can also Examples of the external device include a visibility meter 11, a millimeter wave sensor 12, an administrator terminal 14, a user terminal 15, a road information board 16, and the like, but are not limited thereto.

  The control means 40 controls the entire configuration of the road management support apparatus 13. Specifically, the control means 40 performs each control regarding a road management assistance process based on the instruction | indication from the input means 31 by an administrator etc., for example. Here, each control means, for example, that the road data collecting unit 34 collects road data, the state change determining unit 35 determines the change of the road to be managed, and the road surface state estimating unit 36 estimates the road surface state. Etc. Furthermore, each control has the notification determination means 37 make notification determination, but is not limited thereto. With the configuration of the present embodiment described above, appropriate information can be provided to the administrator.

  Each process in the road data collection unit 34, the state change determination unit 35, the road surface state estimation unit 36, the notification determination unit 37, and the notification unit 38 described above executes, for example, at least one preset application (program). This can be achieved.

  Moreover, the process in each structure in the road management assistance apparatus 13 mentioned above may be implement | achieved by the cloud computing which has one or more information processing apparatuses.

<Hardware configuration example of road management support device 13>
FIG. 3 is a diagram illustrating an example of a hardware configuration of the road management support apparatus. The road management support device 13 shown in FIG. 3 includes an input device 51, an output device 52, a drive device 53, an auxiliary storage device 54, a main storage device 55, and a central processing unit (CPU) 56 that performs various controls. And a network connection device 57, which are connected to each other via a system bus B.

  The input device 51 includes a pointing device such as a keyboard and a mouse operated by a user such as an administrator, and a voice input device such as a microphone. The input device 51 receives a program execution instruction, various operation information, software, and the like from the user. Accepts input of information to start up.

  The output device 52 has a display that displays various windows, data, and the like necessary for operating the road management support device 13 in the present embodiment, and displays the program execution progress, results, and the like by a control program that the CPU 56 has. be able to.

  Here, the execution program installed in the computer main body such as the road management support apparatus 13 is provided by, for example, a universal serial bus (USB) memory, a portable recording medium 58 such as a CD-ROM, a DVD, or the like. The recording medium 58 on which the program is recorded can be set in the drive device 53, and an execution program included in the recording medium 58 is transmitted from the recording medium 58 via the drive device 53 on the basis of a control signal from the CPU 56. To be installed.

  The auxiliary storage device 54 is a storage means such as a hard disk drive or a solid state drive (SSD). The auxiliary storage device 54 stores an execution program in the present embodiment, a control program provided in a computer, and the like based on a control signal from the CPU 56, and performs input / output as necessary. The auxiliary storage device 54 can read and write necessary information from each stored information based on a control signal from the CPU 56 and the like.

  The main storage device 55 stores an execution program or the like read from the auxiliary storage device 54 by the CPU 56. The main storage device 55 is a Read Only Memory (ROM), a Random Access Memory (RAM), or the like. The auxiliary storage device 54 and the main storage device 55 correspond to the storage means 33 described above, for example.

  The CPU 56 is a computer such as the road management support device 13 for performing various calculations and data input / output with each hardware component based on a control program such as an operating system and an execution program stored in the main storage device 55. Each process can be realized by controlling the entire process. Various information necessary during the execution of the program can be acquired from, for example, the auxiliary storage device 54, and the execution result and the like can also be stored.

  For example, the CPU 56 executes a program on the main storage device 55 by causing a program (for example, a road management support program) installed in the auxiliary storage device 54 to be executed based on, for example, a program execution instruction obtained from the input device 51. Process corresponding to.

  For example, the CPU 56 executes a road management support program to collect the road data by the road data collection unit 34 described above, determine the state change by the state change determination unit 35, estimate the road surface state by the road surface state estimation unit 36, and the like. Perform the process. The CPU 56 performs notification determination by the notification determination unit 37, notification by the notification unit 38, and the like. In addition, the processing content in CPU56 is not limited to this. The contents executed by the CPU 56 are stored in the auxiliary storage device 54 as necessary.

  The network connection device 57 acquires an execution program, software, setting information, and the like from an external device or the like connected to the communication network 17 by connecting to the communication network 17 or the like based on a control signal from the CPU 56. Further, the network connection device 57 can provide an execution result obtained by executing the program or the execution program itself in the present embodiment to an external device or the like.

  With the hardware configuration described above, the road management support process in the present embodiment can be executed. In the present embodiment, by installing an execution program (road management support program) capable of causing a computer to execute each function on, for example, a general-purpose PC, the road management support processing in the present embodiment can be easily realized. it can.

  The hardware configuration described above can also be applied to the administrator terminal 14 and the user terminal 15 described above, for example. When the administrator terminal 14 or the user terminal 15 is a communication terminal, the network connection device 57 includes a communication unit that enables communication using, for example, Wi-Fi (registered trademark) or Bluetooth (registered trademark). You may have. Further, the network connection device 57 may have a call means that enables a call with another terminal.

<Example of processing of road management support device 13>
Next, an example of processing of the road management support device 13 will be described using a flowchart. FIG. 4 is a flowchart illustrating an example of processing of the road management support apparatus. In the example of FIG. 4, the road data collection means 34 of the road management support apparatus 13 uses road data obtained from the visibility meter (first measurement means) 11, the millimeter wave sensor (second measurement means) 12, etc. Collect (S01). In the process of S01, road data is collected at a predetermined timing from one or more visibility meters 11 and millimeter wave sensors 12 installed on the road to be managed. The collected road data is stored in, for example, the storage means 33.

  Next, the state change determination means 35 of the road management support apparatus 13 determines the state change of the road to be managed using the road data obtained in the process of S01 (S02), and determines whether or not there has been a state change. Judgment is made (S03). In the process of S03, whether or not the state has changed is determined by, for example, determining whether or not the road state has deteriorated. If the road state has improved (becomes better), the state Although it can be considered that there was no change, it is not limited to this.

  If there is a change in state in the process of S03 (YES in S03), the road surface condition estimation means 36 of the road management support apparatus 13 estimates the road surface condition for the management target road from which road data is collected in the process of S01, for example. (S04).

  Next, the notification determination unit 37 of the road management support device 13 determines whether or not to notify the predetermined manager or the like of the road surface condition based on the estimation result obtained in the process of S04 (S05), It is determined whether notification is necessary based on the determination result (S06).

  Note that, in the process of S06, an administrator to be notified may be selected according to a road surface state estimation result (for example, a deterioration level) among a plurality of preset administrators.

  In addition, when there is a change in state in the process of S03 (YES in S03), the notification determination unit 37 does not perform the process of S04, and notifies based on the road state after the change in the process of S05. It may be determined whether or not to perform, and an administrator to be a transmission destination may be selected in the process of S06.

  In the process of S06, when notification is necessary (YES in S06), the notification unit 38 is an administrator terminal associated with one or more managers selected based on the determination result obtained by the notification determination unit 37 14 is notified of the estimation result of the road surface condition (S07). Alternatively, when the process of S04 is not performed, the changed state of the road may be notified to the administrator terminal 14 in the process of S07.

  The road management support device 13 performs road management when there is no state change in the process of S03 described above (NO in S03), when notification is not required in the process of S06 (NO in S06), or after the process of S07. It is determined whether or not to end the support process (S08).

  When the road management support device 13 does not end the process (NO in S08), the road management support apparatus 13 returns to the process of S01 and repeats the process at predetermined time intervals, for example. Moreover, the road management assistance apparatus 13 complete | finishes a road management assistance process, when complete | finishing a process (in S08 YES). Thereby, the estimation result of a road surface condition can be notified to an administrator at an appropriate timing, and appropriate road management support for the administrator can be performed.

  In the above-described processing of S07, in addition to notifying the administrator, the user terminal 15 and the road information board 16 are notified of road surface conditions, warnings, etc. according to instructions from the administrator who received the notification. May be included.

<Data example>
Next, an example of data in the present embodiment will be described with reference to the drawings. FIG. 5 is a diagram illustrating an example of data in the present embodiment. FIG. 5A shows an example of road data obtained from the visibility meter 11. FIG. 5B shows an example of road data obtained from the millimeter wave sensor 12. FIG. 5C shows an example of administrator information. FIG. 5D shows an example of user information.

  In FIG. 5A, items of road data obtained from the visibility meter 11 are, for example, “identification information”, “date / time information”, “position information”, “visibility distance”, etc., but are not limited thereto. Instead, for example, weather data and temperature data may be included.

  The identification information in FIG. 5A is information for identifying one or a plurality of visibility meters 11 installed on the road to be managed. The date / time information in FIG. 5 (A) is date / time information when road data is acquired by measurement by the visibility meter 11 or the like. Although the date and time information shown in FIG. 5A stores the date and time, the present invention is not limited to this. For example, only the time information may be used.

  The position information in FIG. 5A is information on the installation position of the visibility meter 11, for example, and can be represented by a coordinate system (X, Y, Z), for example. In the case of the coordinate system (X, Y, Z), X is latitude, Y is longitude, and Z is height (elevation), but is not limited to this. For example, Z (height ) (For example, (X, Y)). This position information may be set in advance at the time of installation, or may be measured using a Global Positioning System (GPS) function provided in the visibility meter 11, but is not limited thereto.

  In the present embodiment, when other tables or the like in which “identification information” and “position information” are associated with each other are stored in advance in the storage means 33 or the like, the identification information is acquired from the visibility meter 11. Thus, the position information can be acquired.

  The visibility distance is, for example, a numerical value of the state of visibility of the atmosphere around the road, and is a distance that can be seen in the horizontal direction. For example, a visibility distance of 4000 m means that the human eye can see up to 4000 m ahead, but is not limited thereto.

In the example of FIG. 5A, for example, the visibility meter 11 of the identification information S0001 installed in the position information (X ₁ , Y ₁ , Z ₁ ) was measured at 13:30 on February 1, 2013. The visibility distance is 4000 m. In the present embodiment, for example, the change in the situation is determined based on the value of the visibility distance shown in FIG. 5A, and the road surface condition is estimated based on the determination result.

  In FIG. 5B, items of road data obtained from the millimeter wave sensor 12 are, for example, “identification information”, “date / time information”, “position information”, “vehicle speed (Km / h)”, “cross-section traffic volume”. However, it is not limited to this.

  The identification information in FIG. 5B is information for identifying one or a plurality of millimeter wave sensors 12 installed on the management target road. The date / time information in FIG. 5 (B) is date / time information when road data is acquired by measurement by the millimeter wave sensor 12 or the like. Note that the date and time information shown in FIG. 5B stores the date and time, but is not limited to this, and for example, only the time information may be used.

  The position information is information on the installation position of the millimeter wave sensor 12, for example, and can be expressed in a coordinate system (X (latitude), Y (longitude), Z (elevation)), etc., as in FIG. For example, only latitude and longitude (X, Y) may be used. This position information may be set in advance at the time of installation or may be measured using a GPS function provided in the millimeter wave sensor 12, but is not limited thereto.

  The vehicle speed (Km / h) is a speed of the vehicle 21 that travels within a predetermined irradiation range of the road 20 irradiated with the millimeter wave radar by the millimeter wave sensor 12. For example, if the road data is acquired at 5-minute intervals, the speed may be the average speed of each vehicle measured so far, or may be the maximum speed or the minimum speed, etc. It is not limited.

  The sectional traffic volume is obtained by counting the number of vehicles 21 passing through the irradiation range of the millimeter wave sensor 12. For example, when road data is collected every 5 minutes, the number of vehicles that have passed in 5 minutes is shown, but this is not a limitation, and for example, the average number of vehicles that pass in 1 minute is stored. May be.

In the example of FIG. 5B, for example, the visibility meter 11 of the identification information M0001 installed in the position information (X ₂ , Y ₂ , Z ₂ ) is measured at 13:30 on February 1, 2013. The vehicle speed is 80 km / h, and the cross-sectional traffic is 200 cars / 5 minutes. Note that the road data in FIG. 5B only needs to include information on either vehicle speed or cross-sectional traffic.

  In the present embodiment, for example, a change in state is determined from the vehicle speed and cross-sectional traffic shown in FIG. 5B, and the road surface condition is estimated based on the determination result. Moreover, in this embodiment, the road surface condition of a road can be estimated more appropriately by making a determination using each road data shown in FIGS. 5 (A) and 5 (B).

  In FIG. 5C, the items of administrator information are, for example, “manager information”, “manager terminal information”, “mail address”, “phone number”, but are not limited thereto. For example, it may have a name, job title, IP address, notification priority, and the like.

  The manager information is information for identifying one or a plurality of managers set in advance. The administrator terminal information is information for identifying an administrator terminal associated with the administrator. The e-mail address in FIG. 5C is e-mail address information set in the administrator terminal 14 associated with the administrator, and is an example of contact information. The telephone number in FIG. 5C is a telephone number set in the administrator terminal 14 associated with the administrator, and is an example of contact information.

  In the example of FIG. 5C, as the contact information of the administrator “K01”, the mail address “aaa@bbb.co.jp” set in the administrator terminal “KT01” and the telephone number “090-**” are displayed. "**-1234" is registered. In this embodiment, when it is necessary to notify the estimation result of the road surface condition, the mail address “aaa@bbb.co.jp” of the administrator K01 selected from the estimation result is extracted, and the extracted mail address is extracted. A notification regarding the estimation result of the road surface condition is given.

  In FIG. 5D, the items of user information are, for example, “user information”, “user terminal information”, “mail address”, “phone number”, but are not limited thereto. For example, it may have a name, an IP address, and the like.

  The user information is information for identifying one or a plurality of users registered in a service provided by the road management support system 10, for example. The user terminal information is information for identifying an administrator terminal associated with the user. The mail address in FIG. 5D is mail address information set in the user terminal 15 associated with the user, and is an example of contact information. The telephone number in FIG. 5D is a telephone number set in the user terminal 14 associated with the user and is an example of contact information.

  In the example of FIG. 5D, as the contact information of the user “R01”, the mail address “eee@fff.ne.jp” set in the user terminal “RT01” and the telephone number “090-**” are displayed. **-1111 ”is registered. In this embodiment, when it is necessary to notify a warning to the road surface condition or the like according to an instruction from the administrator, the registered user R01's mail address “eee@fff.ne.jp” is extracted, and the extracted mail A notification regarding the road surface condition is given to the address.

  As a result, for example, when an administrator or the like determines that it is necessary to notify a registered user of the road surface condition, a warning or the like about the road surface condition can be notified to the user terminal 15. 5A to 5D is stored in the storage unit 33. However, the stored information is not limited to this, and for example, an estimation table to be described later is also stored. .

<Example of state change determination>
Next, an example of state change determination in the present embodiment will be described with reference to the drawings. FIG. 6 is a diagram illustrating an example of state change determination. In the example of FIG. 6, the relationship between the time obtained from the visibility meter 11 and the visibility distance and the relationship between the time obtained from the millimeter wave sensor 12 and the speed are displayed as graphs. May not be generated. The time of each graph is synchronized.

  In the example of FIG. 6, the above-described graph is based on road data acquired from the visibility meter 11 and the millimeter wave sensor 12 set at a certain point (point 1) on the road to be managed. It can also be acquired from other points (for example, point 2,..., Point n). The state change determination unit 35 may generate each of the above-described graphs for each point, display the generated graph on a display such as the output unit 32, and allow the administrator or the like to confirm the graphs.

  Thereby, the state change determination means 35 can determine the state change in each point, and can perform more suitable state change determination based on the determination result of a some point.

  For example, as shown in FIG. 6, the state change determination unit 35 acquires a state where the visibility is deteriorated based on the visibility distance (distance from the visibility meter) measured by the visibility meter 11 and a preset threshold value or the like. To do. In addition, the state change determination unit 35 acquires a state where the speed of the vehicle 21 passing through the point is reduced using the speed obtained from the millimeter wave sensor 12 and the like and a preset speed. In the present embodiment, it is possible to easily detect a change in the situation using the above-described information, and it is possible to appropriately grasp the time during which visibility is deteriorated and the speed is reduced. In the present embodiment, levels such as “good” and “bad” may be provided in the visibility, and “over normal speed”, “low speed”, and “stop” levels may be provided in the speed. Visibility of “good” and “bad” can be set, for example, with a visibility distance of 100 m or more as “good” and less than 100 m as “bad”, but the visibility level is not limited to this. The speed level is, for example, compared with a preset threshold value, and is “stop” when it is lower than the first threshold value, “low speed” when it is between the first threshold value and the second threshold value, If it is greater than the second threshold, it can be determined as “normal speed or higher”. The setting method of the visibility level and the speed level is not limited to this.

  The road surface condition estimating means 36 can appropriately estimate the road surface (traffic condition) with respect to a change in state by using the visibility level, speed level, and the like as described above. In addition, the determination of the state change is based not only on the result of one point, but also on the road surface state based on, for example, the state change for a plurality of consecutive points and the statistical result of the state change at that point based on the past history. You may determine the change of. The state change determination means 35 can also collect state change determination results at one or a plurality of points to determine a state change in a predetermined section.

  The determination of the state change in the present embodiment is not limited to the above-described content. For example, the cross-section traffic is used instead of the speed, and the traffic volume level is set using the cross-section traffic and a preset threshold. The state change may be determined by using the set traffic volume level.

<Example of road surface condition estimation processing>
Next, an example of the road surface state estimation process in the present embodiment will be described. For example, the road surface condition estimation means 36 can simply estimate the road surface condition using the measured values of the visibility meter 11 and the millimeter wave sensor 12 and a preset estimation table or the like. Or the notification determination means 37 can determine the transmission destination which should be notified using each measured value of the visibility meter 11 and the millimeter wave sensor 12, and the preset estimation table.

FIG. 7 is a diagram illustrating an example of the estimation table. In the table example of FIG. 7, “road surface condition estimation result” estimated based on the “speed level” and “visibility level” described above, “whether there is a notification to the administrator ”, and “notification destination (manager ) Type "is set.

  The speed level (for example, “above normal speed”, “low speed”, “stop”) and the visibility level (for example, “good”, “bad”) in the example of FIG. However, the present invention is not limited to this. Further, the number of levels is not limited to the example of FIG.

  For example, when the speed level is “normal speed or higher”, the road surface condition estimation unit 36 sets the road surface condition to “good” regardless of the visibility level “good” or “bad”. In this case, since the administrator does not need to take any action, the notification determination unit 37 does not notify the administrator (not notified). The notification determination is not limited to this. For example, when the speed level is “normal speed or higher” and the visibility level is “good”, the road surface condition may be “dry”. It is possible to notify the manager (road manager) by presuming that there is. The manager receives the notification as described above at the manager terminal 14, and visually confirms the situation with a monitoring camera or the like installed on the target road. It is possible to take prompt actions such as giving instructions.

  Further, the road surface condition estimating means 36 can estimate that the road surface condition is “sunny but freezing or falling object” when the speed level is “low speed” and the visibility level is “good”. In this case, since it is estimated that the road surface condition is slightly deteriorated, the notification determination unit 37 notifies the manager terminal 14 of the manager (road manager) corresponding to the above-described estimation result of the estimation result. Do. The manager receives the notification as described above at the manager terminal 14 and visually confirms the situation with a monitoring camera or the like installed on the target road. It is possible to take a quick response such as instructing dispatch to be removed.

  As described above, the road data includes date and time information. Therefore, the road surface condition estimating means 36 can specify the season from the date and time information, and can estimate that “the road surface may be wet” as the road surface condition in summer. Further, the road surface condition estimating means 36 can estimate that “the road surface may be frozen” as the road surface condition in winter. Further, in the present embodiment, using the position information included in the road data, if the road data measurement position is at a high altitude (for example, near the foot of a mountain), it is estimated that “road surface may be frozen”. Can do. In the present embodiment, more appropriate road surface conditions can be estimated by using date and time information and position information included in road data.

  Further, the road surface condition estimating means 36 can estimate that there is a possibility of snowfall or fog as the road surface condition when the speed level is “low speed” and the visibility level is “bad”. In this case, since it is estimated that the road surface condition is slightly deteriorated, the notification determination unit 37 notifies the manager terminal 14 of the manager (road manager) corresponding to the above-described estimation result of the estimation result. Do. The administrator receives the notification as described above at the administrator terminal 14 and visually confirms the situation with a monitoring camera or the like installed on the target road, and for example, the user terminal 15 or the road information board for the driver. It is possible to take a quick response such as notification of a warning by 16 or the like.

  In addition, the road surface condition estimation means 36 can specify the season from the date and time information described above, and can estimate that there is a possibility that the road surface is wet due to fog or raining in the summer. Further, the road surface condition estimating means 36 can estimate that there is a possibility of snow accumulation due to snowfall as the road surface condition in winter. Further, the road surface condition estimating means 36 can estimate “possibility of road surface freezing” if the measurement position of the road data is a place where the altitude is high, using the position information described above.

  Further, the road surface condition estimating means 36 can estimate that “there is a possibility of an accident” as the road surface condition when the speed level is “stop” and the visibility level is “good”. In addition, accidents include accidents not caused by road surface conditions (for example, traffic accidents, single failures, etc.), accidents caused by road surface conditions (for example, slips, landslides, fallen objects, etc.).

  In this case, since the notification determination unit 37 cannot distinguish whether the stop is due to road surface conditions, both the road manager and the traffic manager may visit the site. Is notified of the estimation result. Since the notification at this time is estimated that the road surface condition is considerably deteriorated and urgent action is required, a notification indicating the emergency notification may be performed. By receiving the notification as described above at the administrator terminal 14, the administrator can visually check the situation with a monitoring camera or the like installed on the target road, and can take quick action according to the situation.

  The road surface condition estimating means 36 can specify the season from the date and time information described above, and can estimate that there is a possibility of road surface wetness (flooding) as the road surface condition in summer. Further, the road surface condition estimating means 36 can estimate that “the road surface may be frozen” as the road surface condition in winter. Further, in the present embodiment, using the position information included in the road data, it can be estimated that “the road surface may be frozen” if the measurement position of the road data is at a high altitude. In the present embodiment, more appropriate road surface conditions can be estimated by using date and time information and position information included in road data.

  Further, the road surface condition estimating means 36 can estimate that there is a possibility of snowfall or fog as the road surface condition when the speed level is “stop” and the visibility level is “bad”. In this case, the notification determination unit 37 notifies the manager terminal 14 of the manager (road manager) corresponding to the above-described estimation result of the estimation result. Since the notification at this time is estimated that the road surface condition is considerably deteriorated and urgent action is required, a notification indicating the emergency notification may be performed. The administrator receives the notification as described above at the administrator terminal 14 and visually confirms the situation with a monitoring camera or the like installed on the target road, and for example, the user terminal 15 or the road information board for the driver. It is possible to take a quick response such as notification of a warning by 16 or the like.

  The road surface condition estimating means 36 can identify the season from the date and time information described above, and can estimate that the road surface condition is “possibly wet on the road surface” in summer. Further, the road surface condition estimation means 36 can estimate that there is a possibility of snow accumulation due to snowfall (snowstorm) as a road surface condition in winter. Further, the road surface condition estimating means 36 can estimate “there is a possibility of snow accumulation due to snowfall (snowstorm)” if the road data measurement position is at a high altitude, using the position information described above.

  In the present embodiment, as shown in the example of FIG. 7 described above, even when the speed level is “low speed”, freezing (or falling objects) is obtained by combining the data of the visibility level “good” or “bad”. It is possible to estimate whether it is snowfall or snowfall. Therefore, for example, it is possible to quickly deal with whether or not the road manager needs to visit the site.

  Further, in this embodiment, even when the visibility level is “good”, by combining the data of whether the speed level is “low speed” or “stop”, it is possible to determine whether it is a road surface problem or an accident (or a faulty car). It can be estimated separately. Therefore, it is possible to quickly determine whether it is a road manager or a traffic manager (police etc.) that needs to go to the site.

  Furthermore, in this embodiment, even when the speed level is “stopped”, it is necessary for both the road manager and the traffic manager to go to the site by combining the data of the visibility level “good” or “bad”. It is possible for the road manager to quickly determine whether or not the road manager can respond by a remote instruction or the like.

  In this embodiment, as shown in FIG. 7, a manager (road manager, etc.) for normal notification and a manager (road manager, traffic manager, etc.) for emergency notification are set in advance. By doing so, it is possible to notify the manager according to the level of state change, the estimation result, and the like.

  In other words, the notification determination unit 37 can change the notification destination according to the determination result obtained by the state change determination unit 35 or the output result of the road surface condition estimation unit 36, for example. Notifications will be sent only when necessary to the communication line to which the computer used by the road manager is connected and the communication line to which the computer used by the traffic manager is connected. An increase in the load on the communication line can be suppressed.

  Note that the notification determination unit 37 may not perform notification more than a predetermined number of times when the same notification is given to the same administrator. In this case, the notification determination unit 37 may select another administrator who has not yet been notified and notify the notification unit 38 of the selected administrator.

For example, in the example of FIG. 5B described above, 200 millimeters of traffic volume was measured from the millimeter wave radar at a normal speed of 80 Km / h at 13:30, but at 19:15, For the reason, the speed of the vehicle is 30 km / h, and the traffic volume for 5 minutes has dropped to 40 cars / 5 minutes. Moreover, when the visibility level is seen, it can be cited as a reason that the field of view around 19:00 has dropped to 50 m. Further, the road surface condition estimating means 36 can acquire date and time information, estimate “wet” as the summer road surface condition, and estimate “snow cover” as the winter road surface condition.

  In the present embodiment, basically, if it is an area where there is a lot of snowfall or freezing in winter, it can be simply estimated that the snowfall is caused by a decrease in visibility. Furthermore, if the vehicle speed is decreasing, it can be estimated that the driver has decreased the speed due to snowfall. Moreover, in this embodiment, if the speed is decreasing without decreasing visibility, the possibility of freezing can be easily estimated.

  In this embodiment, the road surface condition can be determined with higher accuracy by using information such as weather information (current weather and weather forecast), temperature, humidity, road surface temperature on the road surface, and the like. Information regarding poor visibility (bad) and a decrease in vehicle speed is information that indicates any abnormality for road managers, so it is very important for the manager to judge the situation.

  As described above, according to the present embodiment, it is possible to perform appropriate road management support for the administrator. For example, according to the present embodiment, it is possible to output a response to be executed to the road manager or the like based on the estimation result of the road surface condition even if the manager does not constantly monitor the road. Therefore, the administrator can quickly detect road abnormalities, and can also perform accurate patrols and surveillance camera confirmations as a trigger to quickly make accurate situation determinations. Moreover, according to this embodiment, road management duties, such as snow removal and a snow melting agent dispersion | spreading, can be implemented rapidly. Thereby, it is possible to output a response to be executed to a road administrator or the like.

  The road management support system described above can also acquire road data from an image sensor, a traffic counter, a meteorometer, or the like. In this way, the road management support system is combined with other road management such as stopping, grasping low-speed vehicles, grasping danger situations such as reverse running vehicles, grasping vehicle speed, grasping traffic volume, grasping the operation status of equipment, etc. It can support the road management work of the manager.

  Each embodiment has been described in detail above. However, the present invention is not limited to the specific embodiment, and various modifications and changes other than the above-described modification are possible within the scope described in the claims. .

In addition, the following additional remarks are disclosed regarding the above Example.
(Appendix 1)
Road management support device
Based on the visibility of the road to be managed and the measurement result obtained from the measuring means for measuring the speed of the vehicle traveling on the road, the change in the state of the road is determined,
Select a notification destination based on the determination result,
A road management support method, comprising: transmitting a notification to the selected transmission destination based on the selection.
(Appendix 2)
The measuring means includes
The road management support method according to claim 1, further comprising: a first measuring unit that measures visibility of the road to be managed; and a second measuring unit that measures a speed of a vehicle traveling on the road. .
(Appendix 3)
The road management support device further estimates the road surface condition of the road based on the determination result,
The road management support method according to appendix 1 or 2, wherein a transmission destination of the notification is selected according to the estimation result.
(Appendix 4)
The road management support method according to appendix 3, wherein the road surface condition is estimated based on a measurement result obtained from the measurement means and seasonal information corresponding to the measured date and time information.
(Appendix 5)
The visibility level of the road and the speed level of the vehicle are set from the measurement result obtained from the measuring means, and the transmission destination of the notification is selected using the visibility level and the speed level. 5. The road management support method according to any one of items 1 to 4.
(Appendix 6)
A state change determination means for determining a change in the state of the road based on a visibility of the road to be managed and a measurement result obtained from a measurement means for measuring a speed of a vehicle traveling on the road;
A notification determination unit that selects a transmission destination of a notification based on a determination result obtained by the state change determination unit;
A road management support apparatus comprising: a notification unit configured to transmit a notification to a transmission destination selected by the notification determination unit.
(Appendix 7)
Based on the visibility of the road to be managed and the measurement result obtained from the measuring means for measuring the speed of the vehicle traveling on the road, the change in the state of the road is determined,
Select a notification destination based on the determination result,
A road management support program for causing a computer to execute a process of transmitting a notification to the selected transmission destination based on the selection.

10 Road management support system 11 Visibility meter (first measuring means)
12 millimeter wave sensor (second measuring means)
DESCRIPTION OF SYMBOLS 13 Road management support apparatus 14 Manager terminal 15 User terminal 16 Road information board 17 Communication network 20 Road 21 Vehicle 31 Input means 32 Output means 33 Storage means 34 Road data collection means 35 State change judgment means 36 Road surface condition estimation means 37 Notification Determination means 38 Notification means 39 Transmission / reception means 40 Control means 51 Input device 52 Output device 53 Drive device 54 Auxiliary storage device 55 Main storage device 56 CPU
57 Network connection device 58 Recording medium

Claims (4)

Road management support device
Based on the used measurement results obtained from measuring means for measuring the vehicle speed to travel visibility before SL road managed roads, to determine the change in the state of the road,
Estimating the road surface condition of the road based on the determined change in the state of the road,
Depending on the estimated road surface condition and measurement result, select the notification destination,
A road management support method, comprising: transmitting a notification to the selected transmission destination based on the selection. The visibility level of the road and the speed level of the vehicle are set from the measurement result obtained from the measuring means, and the transmission destination of the notification is selected using the visibility level and the speed level. road management support method according to 1. Based on the used measurement results obtained from measuring means for measuring the vehicle speed to travel visibility before SL road managed roads, the state change determining means for determining a change in the state of the road,
Notification determination for estimating a road surface condition of the road based on a change in the state of the road determined by the state change determination unit , and selecting a transmission destination of the notification according to the estimated road surface condition of the road and a measurement result Means,
A road management support apparatus comprising: a notification unit configured to transmit a notification to a transmission destination selected by the notification determination unit. Based on the used measurement results obtained from measuring means for measuring the vehicle speed to travel visibility before SL road managed roads, to determine the change in the state of the road,
Estimating the road surface condition of the road based on the determined change in the state of the road,
In accordance with the estimated road surface condition of the road and the measurement result, a notification destination is selected from a plurality of destinations stored in the storage unit ,
A road management support program for causing a computer to execute a process of transmitting a notification to the selected transmission destination based on the selection.

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