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Social and Behavioral Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

2011

Series

Engineering

Portland State University

Oregon. Department of Transportation

Articles 1 - 2 of 2

Full-Text Articles in Social and Behavioral Sciences

Case Study Evaluation Of Dynamic Traffic Assignment Tools, John Gliebe, Åsa Bergman Mar 2011

Case Study Evaluation Of Dynamic Traffic Assignment Tools, John Gliebe, Åsa Bergman

Urban Studies and Planning Faculty Publications and Presentations

A case study was undertaken in order to evaluate the potential use of dynamic traffic assignment (DTA) tools by Oregon Department of Transportation (ODOT) and its partner agencies. The objectives of this study were to provide insight into the nature of DTA models, to inform the program selection process, and to develop realistic expectations for potential DTA work plans. The overarching goal of this report is to describe the process followed and experiences of the study team in developing and testing DTA network models. Two available DTA programs were selected for in-depth analysis from a preliminary screening of available programs: …


Assessment And Refinement Of Real-Time Travel Time Algorithms For Use In Practice, Phase Ii, Kristin A. Tufte, Soyoung Ahn, Sirisha Murthy Kothuri Feb 2011

Assessment And Refinement Of Real-Time Travel Time Algorithms For Use In Practice, Phase Ii, Kristin A. Tufte, Soyoung Ahn, Sirisha Murthy Kothuri

TREC Final Reports

The Federal Highway Administration (FHWA) has put a high priority on the use of existing dynamic message signs (DMS) to provide travel time estimates to the public. The Oregon Department of Transportation (ODOT) has three DMS in the Portland metropolitan area configured to display travel time information. In the near future, ODOT would like to make travel time estimates available on additional DMS, over the Internet on tripcheck.com and via 511. Travel time estimates are valuable to the traveling public; however, the estimates must be accurate to be useful. The purpose of this study is to extend prior travel time …