parking brake

parking brake (plural parking brakes)

1. A brake in a vehicle that can be set to avoid the vehicle rolling down a hill or being pushed away.
   • 2024 February 7, Greg Morse, “Tebay tragedy and track safety”, in RAIL, number 1002, page 41:

     RSSB's report, released on September 23 2004, revealed that that the parking brakes on neither trolley had applied. It also revealed how the fixed piping carrying hydraulic pressure to the brake units on both had been severed and blanked off. This meant the parking brakes would not have been able to be released from the RRV. Washers to provide a clamping force to keep the parking brakes on were also missing, rendering them "completely inoperative".

• handbrake