Pre-trip and En-route Route Choice in a Dynamic Traffic Assignment Model
A dynamic traffic assignment framework has been described in which travelers' pre-trip and en-route choices are modeled, including the influence of the pre-trip route choice on the later en-route decisions. Travelers' route choice sets are extended during the dynamic traffic flow simulation to include all reasonable routes from all intersections to all destinations. The en-route route flows are the computed by applying a relative multinominal logit model, in which the generalized route costs include a possible utility for following the route that is chosen pre-trip. The latter is represented by the route overlap factor and a weighting parameter which may also be interpreted as a threshold to deviate from the pre-trip route choice. The proposed framework is widely applicable in dynamic traffic assignment applications, since it enables modeling the synthesis of pre-trip (or dictated) and en-route choices due to, for instance, route guidance, evacuation instructions and unexpected traffic or network conditions (e.g., incidents, accidents and road works), as well as providing a solution to possible gridlock, and is capable of dealing with failure of links.
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Availability:
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Corporate Authors:
William Pratt House, 9 Dewey Court
Northampton, MA United States 01060-3815 -
Authors:
- Pel, Adam J
- Bliemer, Michiel C J
- Hoogendoorn, Serge P
- Publication Date: 2010
Language
- English
Media Info
- Media Type: Print
- Features: Figures; Maps; References;
- Pagination: pp 293-302
- Monograph Title: New Developments in Transport Planning: Advances in Dynamic Transport Assignment
Subject/Index Terms
- TRT Terms: Dynamic traffic assignment; Route choice; Traffic assignment; Traffic congestion; Traffic flow; Traffic models; Traffic simulation; Trip purpose
- Uncontrolled Terms: En-route information; Pre-trip planning
- Subject Areas: Highways; Operations and Traffic Management; Planning and Forecasting; I72: Traffic and Transport Planning;
Filing Info
- Accession Number: 01173185
- Record Type: Publication
- ISBN: 978184449633
- Files: TRIS
- Created Date: Sep 16 2010 12:42PM