Regional Planning Models Used in Subarea Windows

by Richard E. Walker, Metropolitan Service District, Portland, OR, USA,



Document Type: Proceeding Paper

Part of: Microcomputer Applications Within the Urban Transportation Environment

Abstract: The typical regional travel-forecasting model has historically been confined to use on a mainframe computer. In an effort to reduce costs and allow computer hardware options, a three-tiered windowing concept was developed by the Metropolitan Service District. The underlying zone system, the travel demand subarea, and the specific site subarea have provided a tool to obtain very detailed trip table and assignment data at a cost much less than previous methods. Since the amount of data being processed has been reduced, the travel-forecasting model was able to be converted from a mainframe environment to a super-microcomputer. This paper discusses the development and implementation of the subarea modeling strategy in Portland, Oregon.

Subject Headings: Windows | Computer models | Travel modes | Data processing | Computer software | Travel demand | Urban areas | Architecture | Oregon

Services: Buy this book/Buy this article

 

Return to search