Estimation of Travel Time on Urban Networks with Midlink Sources and Sinks
This paper presents a methodology for estimation of average travel time on signalized urban networks by integrating cumulative plots and probe data. This integration aims to reduce the relative deviations in the cumulative plots due to midlink sources and sinks. During undersaturated traffic conditions, the concept of a virtual probe is introduced, and therefore, accurate travel time can be obtained when a real probe is unavailable. For oversaturated traffic conditions, only one probe per travel time estimation interval—360 s or 3% of vehicles traversing the link as a probe—has the potential to provide accurate travel time.
- Record URL:
- Summary URL:
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Availability:
- Find a library where document is available. Order URL: http://trb.org/Main/Blurbs/Data_Systems_and_Travel_Survey_Methods_2009_162816.asp
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Authors:
- Bhaskar, Ashish
- Chung, Edward
- Dumont, Andre-Gilles
- Publication Date: 2009
Language
- English
Media Info
- Media Type: Print
- Features: Figures; References;
- Pagination: pp 41-54
- Monograph Title: Data Systems and Travel Survey Methods 2009
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Serial:
- Transportation Research Record: Journal of the Transportation Research Board
- Issue Number: 2121
- Publisher: Transportation Research Board
- ISSN: 0361-1981
Subject/Index Terms
- TRT Terms: Estimating; Traffic oversaturation; Traffic signal control systems; Travel time; Urban highways
- Uncontrolled Terms: Data integration; Undersaturated conditions (Traffic); Virtual probe vehicle
- Subject Areas: Data and Information Technology; Highways; Planning and Forecasting; I72: Traffic and Transport Planning;
Filing Info
- Accession Number: 01126611
- Record Type: Publication
- ISBN: 9780309126380
- Report/Paper Numbers: 09-2799
- Files: TRIS, TRB, ATRI
- Created Date: Apr 17 2009 9:56AM