encyclopedia

V.C.B. (VOLUNTARY CALL BACK)

Call back of Operators on their day off who have volunteer for such service.

V.O.

A Transit Operation Supervisor working in the capacity of the Vehicle Operations (VO) function.

VALIDATION

1. The marking of a ticket, pass, or transfer for the purpose of verifying its legitimate use for paid travel, usually giving time and place of marking;_x000D_ 2. The mathematical comparison of two independently obtained sets of data to determine…

VALUE ENGINEERING (VALUE ANALYSIS)

The systematic review by qualified agency and/or contractor personnel of a project, product, or process so as to improve performance, quality, safety, and life-cycle costs.

VAN

Vehicle with a gross vehicle weight rating of less than 10,000 lbs. as identified by the Original Equipment Manufacturer’s weight certificate located on driver’s side door.

VARIABLE

A quantity that may have different values; a data measure used for analysis. (TRB)

VARIABLE COST

A cost that varies in some relation to the level of output or operational activity; for example, the cost of fuel. (TRB)

VARIABLE SWITCH (SLAP AND STAY)

Track switch not requiring alignment for trailing movements and once moved, switch points remain aligned in a trailed position. Variable switches shall be properly aligned manually for facing movements.

VAULT

The part of a farebox or turnstile that holds the money or tokens.