encyclopedia

CAB

Operating compartment of a rail vehicle from which control of the vehicle is achieved.

CAB CAR

1. A rail car with a driving cab. 2. A passenger-carrying car used in push-pull service and fitted with a cab at one end, to be used to operate the train when the locomotive is pushing. See also Car, Commuter…

CAB INDICATOR-AUDIBLE

An alerting device, located in a transit vehicle cab equipped with cab signals, designed to sound when cab signal changes and continues to sound until acknowledged.

CAB PASS

A card, when properly completed, authorizes the individual whose name appears on the card to be in the operating cab with the train operator. The Central Control Facility (CCF) shall be properly notified.

CAB SIGNAL

The Automatic Train Protection (ATP) speed limit as transmitted to the train by wayside equipment. Also see Operating Modes (Light Rail).

CAB SIGNAL DISPLAY

An indication in the train operator’s cab which conveys the automatic cab signal aspects and indicates the prevailing speed command.

CAB SIGNAL MODE

A form of manual train control wherein the operator controls the speed of the vehicle in accordance with cab signal aspect displayed on the cab signal display.

CAB SIGNAL TERRITORY

That part of the Mainline where cab signals govern train movement and speed.

CABLE CAR

An electric railway operating in mixed street traffic with unpowered, individually-controlled transit vehicles propelled by moving cables located below the street surface and powered by engines or motors at a central location not on board the vehicle. (APTA)