Document Type


Publication Date



Geographic information systems -- Oregon -- Applications to freeway planning, Urban land use -- Oregon, Regional planning -- Oregon, Transportation and state

Physical Description

52 pages


The purpose of this research project is to examine the functionality and interface of two Geographic Information Systems, and to perform a potential environmental assessment of the Westside Bypass Freeway corridor in suburban Portland. First is a discussion which describes elementary GIS concepts, data format and fundamental GIS operations. Next is a description of pcARC/INFO and IDRIS! and an analysis of their functionality. Following this, a description of the methodologies used to analyze the Westside Bypass Freeway corridor, is presented. The inventory of resource themes and conflicts with the freeway alignments is discussed next, emphasizing some of the more interesting findings. Finally, an assessment of the capabilities of each GIS and their usefulness for preliminary environmental impact analyses on proposed transportation facilities such as the Westside Bypass is presented.


Supervised Field Area Paper, Masters of Urban Planning Program.

Catalog Number SR015.

A product of the Center for Urban Studies, Nohad A. Toulan School of Urban Studies and Planning, Portland State University.

Persistent Identifier