encyclopedia

ISAM

Indexed Sequential Access Method. A disk access method that stores data sequentially, while also maintaining an index of key fields to all the records in the file for direct access capability. The sequence order of the file would be the…

ISTEA FEDERAL TRANSIT ACT AMENDMENTS OF 1991

These revenues are generally administered by the Federal Transit Administration through transit formula and discretionary programs to achieve such objectives as transit and highway funding flexibility and identical matching shares, rail modernization funding by formula, increased use of the trust…

ISTEA-CMAQ

Congestion Mitigation and Air Quality Improvement program (CMAQ) funds are apportioned to States which have ozone and/or carbon monoxide nonattainment areas (based on the nonattainment classification factor). Such projects are used to attain national ambient area air quality standards with…

ISTEA-STP

Surface Transportation Program is a new block grant type program that may be used by the states and localities for any roads that are not functionally classified as local or rural minor collectors. Such roads are now collectively referred to…