Document Type


Publication Date



Transportation engineering, Geographic information systems, Transportation -- United States -- Planning, Intelligent transportation systems

Physical Description

1 online resource (17 p.)


Updating and maintaining Geographic Information Systems-Transportation data (GIS-T data) is proving difficult. Different database formats needed to support diverse applications leads to inconsistencies and inaccuracies, and duplication in updating. Dueker and Butler (1998) have proposed an Enterprise GIS-T data model that unbundles the various components of transportation data (network links, cartography, and attributes) to facilitate generating application-specific networks, and which eases updating and maintenance. However, developers of existing application-specific databases that employ integrated data models that bundle the network link with cartography and attributes are reluctant to step back to an intermediate form for managing their data. Consequently, attention is given in this report to the development of a method of incorporating transportation system changes directly to existing application- specific networks.


Catalog Number PR114.

Published by the Center for Urban Studies, College of Urban and Public Affairs, Portland State University.

A draft report to the Oregon Road Base Information Team Oregon Department of Transportation.

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