United States Department of Transportation
i
Data Collection in the Portland, Oregon Metropolitan Area Case Study
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1996-06-01
[PDF-10.26 MB]
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Abstract:The need to update Portland's current travel demand system, which is based on a 1985 household survey, generated this study. In this report, the Portland Metropolitan Service District (Metro) is showcased as an example of innovative and comprehensive data collection. Portland is one of the first urban areas in the country to undertake a region-wide home interview survey that is explicitly designed to support the development of a new generation of travel demand models. This case study report describes the data collection program and the associated travel demand modeling system improvements that these data support. It discusses the Household Activity and Travel Behavior Survey carried out in 1994-95, presents the overall data collection program that supports Metro's travel demand modeling activities, and discusses the use of past surveys in estimating and updating Metro's current model system. Metro is highlighted as a successful program using state-of-the-art techniques. The use of GIS in the travel demand modeling process is recommended to help coordinate land use and transportation planning. This case study concludes with an assessment of Metro's data collection program, recommendations to other agencies, and a discussion of the applicability of the Portland experience elsewhere.
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