encyclopedia

ATTAINMENT AREA

An area considered to have air quality that meets or exceeds the U.S Environmental Protection Agency (EPA) health standards used in the Clean Air Act. Nonattainment areas are areas considered not to have met these standards for designited pollutants. An…

ATTB

Advanced Technology Transit Bus – Development project in conjunction with Northrop Grumman aimed at incorporating recent technological advancements into the design of transit buses. The objective vehicles that meet specific goals to include mimimum cost, reduction in weight, reduction in…

ATTITUDE SURVEY

A survey that seeks information on attitudes, motives, and opinions. (TRB)

ATTITUDINAL DATA

In transportation studies, data collected, usually by surveys, from individuals concerning their judgments, views, and perceptions of existing and proposed transportation services and other transportation issues. Also see Behavioral Data. (TRB)

ATTRITION ARRANGEMENT

In Labor, the policy of relying on voluntary resignations, deaths, and retirements instead of layoffs to reduce the labor force of a company or organization. (TRB)