encyclopedia

FRANCHISE

In transportation, the privilege or right granted to a person, group, or organization by a government authority to provide general or specific transportation service, usually applicable to a geographically specified area. (TRB)

FRATAR DISTRIBUTION MODEL

A method of extrapolating a given distribution of trips on the basis of growth factors for the origin and destination ends. It is named after Thomas J. Fratar, the developer. (TRB)

FRED

Freight Rear End Device. A unit placed on the rear of the last car of a freight train and used to transmit data to the engineer about line pressure and the movement of the rear of the train, and presenting…

FREE AREA

All areas of the station outside the paid area which are accessible to the public without paying transit fare.

FREE RUNNING TIME

The specific portions of a trip where there are no fixed times at which an operator must be at a certain stop. (All trips have free running time after the next to last timepoint: Specific directions are indicated on an…

FREEWAY

A highway with full control of access, with all cross roads grade-separated, and interchanged with major cross roads. Accommodates heavy traffic volumes at high speed.

FREEWAY RAMP METERING

A freeway to which access is controlled by entrance ramp signals that use fixed time signal settings or is regulated by a computerized surveillance system. This procedure is used to prevent freeway congestion.

FREEWHEELING (COASTING)

Of a vehicle, running without influence of either the propulsion or brake systems, that is, with tractive forces and braking forces at zero. (TRB)