deadman's brake

deadman's brake

[¦ded‚manz ′brāk]
(mechanical engineering)
An emergency device that automatically is activated to stop a vehicle when the driver removes his or her foot from the pedal.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
"Dad passed out and then woke up to find the alarm lights flashing, which is what happens if a driver takes his foot off the 'deadman's brake'.
Once, a driver fell asleep causing a train to roll back through two stations, because the deadman's brake does not work when the train is in reverse.