encyclopedia

ARB

Air Resource Board. The State of California through the ARB sets ambient air quality standards for air pollutants. California’s standards generally are tighter than the Federal Environmental Protection Agency’s, reflecting the conclusion on ARB’s part that the federal standards are…

ARBITRATION

A method of settling disputes where labor and management present their case to an impartial third party, called an arbitrator, who has the responsibility of deciding the case. “Binding arbitration” results in a final and binding award, which is often…

ARCADE ENTRANCE

An entrance to a below ground station with the head of the stair or public sidewalk and the stair run within a private building structure.

Architectural Barriers Act

The ABA requires access to facilities designed, built, altered, or leased with Federal funds. Passed by Congress in 1968, it marks one of the first efforts to ensure access to the built environment. The Access Board develops and maintains accessibility…

ARE

The price paid to ride public transportation such as a bus or train.

AREA

American Railway Engineering Association; the industry’s professional engineering association.

AREA OCCUPANCY

In station and other facility design and in pedestrian movement, the area provided per person. (TRB)

AREA SAMPLING

A method of sampling that divides a geographical region into smaller areas and uses random selection to determine specific areas or respondents to be interviewed. (TRB)

AREMA

American Railway Engineering & Maintenance of Way Association. This group establishes recommended practices for the railroad industry.