encyclopedia

ROAD

1. Railroad. 2. Class of service between terminals, as opposed to yard service.

ROAD CALL

A mechanical failure of a bus in revenue service that necessitates removing the bus from service until repairs are made. (TRB)

ROAD FOREMAN OF ENGINES

Employee who supervises and trains locomotive engineers in proper train operation.

ROAD MILES (ROAD KILOMETERS)

Linear miles (kilometers) of highway as measured along the centerline of the right-of-way. (TRB)

ROADBED

1. In railroad construction, the foundation on which the ballast and track rests. 2. In highway construction, the graded portion of a highway within top and side slopes, prepared as a foundation for the pavement structure and shoulder. (TRB)

ROADCALL

A revenue service interruption caused by failure of some mechanical or other-than-mechanical element of the revenue vehicle.

ROADSIDE SURVEY

A survey in which highway vehicles are stopped, and drivers, passengers, or both are interviewed to secure information about the trip being made. (TRB)

ROADWAY

That portion of a highway built, designed, or ordinarily used for vehicular travel, except the berm or shoulder. If a highway includes two or more separate roadways, the term means any such roadway separately but not all such roadways collectively.…