encyclopedia

VEHICLE

Any device of contrivance for carrying or conveying people or objects, including land conveyance, vessels, aircraft and spacecraft. The term is sometimes specifically restricted to hand conveyances on wheels, runners, treads, and so on. (TRB)

VEHICLE CAPACITY

The passenger capacity pertinent to specified loading conditions.

VEHICLE CAPACITY(NORMAL VEHICLE CAPACITY, TOTAL VEHICLE)

The maximum number of passengers that the vehicle is designed to accommodate comfortably, seated and standing; may sometimes refer to number of seats only. (TRB)

VEHICLE MILES OF TRAVEL (VMT, VEHICLE KILOMETERS OF TRAVEL)

1. On highways, a measurement of the total miles (kilometers) traveled by all vehicles in the area for a specified time period. It is calculated by the number of vehicles times the miles (kilometers) traveled in a given area or…

VEHICLE OCCUPANCY

The number of people aboard a vehicle at a given time; also known as auto or automobile occupancy when the reference is to automobile travel only. (TRB)

VEHICLE SERVICE MILES/KILOMETERS (VSM/K)

The total miles/kilometers traveled by transit vehicles while in revenue service.

VEHICLE SIGNAL-ACTUATING DEVICE

A device to control traffic signals that is activated by vehicles. (TRB)