Category: Planning_ Construction

ASSOCIATION OF AMERICAN RAILROADS

Association of American Railroads (AAR). An industry association made up of individual railroads in the United States, Canada, and Mexico. It performs a variety of technical services for the railroads, and its purposes include the promotion of railroad interests and…

MODEL

1. The representatives of a system having properties and operations that duplicate those of the original system in characteristics of interest. An analytical tool (often mathematical) used by transportation planners to assist in making forecasts of land use, economic activity,…

POPULATION (UNIVERSE)

A collection of all possible individuals, objects, or items that possess some common specified characteristic(s) which can be measured.

Public Private Partnerships

A government service or private business venture that is funded and operated through a partnership of government and one or more private-sector companies. A P3 concession is an alternative way for a public agency to deliver a public-purpose project. A…

VALUE ENGINEERING (VALUE ANALYSIS)

The systematic review by qualified agency and/or contractor personnel of a project, product, or process so as to improve performance, quality, safety, and life-cycle costs.