A methodology to estimate travel time using dynamic traffic assignment (DTA) under incident conditions |
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Authors: | Camille N Kamga Kyriacos C Mouskos Robert E Paaswell |
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Institution: | aUniversity Transportation Research Center, The City College of New York, New York, NY 10031, United States;bInstitute for Transportation Systems, The City College of New York, New York, NY 10031, United States;cDepartment of Civil Engineering and Director Emeritus, University Transportation Research Center, The City College of New York, New York, NY 10031, United States |
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Abstract: | This paper presents results from a research case study that examined the distribution of travel time of origin–destination (OD) pairs on a transportation network under incident conditions. Using a transportation simulation dynamic traffic assignment (DTA) model, incident on a transportation network is executed under normal conditions, incident conditions without traveler information availability, and incident conditions assuming that users had perfect knowledge of the incident conditions and could select paths to avoid the incident location. The results suggest that incidents have a different impact on different OD pairs. The results confirm that an effective traveler information system has the potential to ease the impacts of incident conditions network wide. Yet it is also important to note that the use of information may detriment some OD pairs while benefiting other OD pairs. The methodology demonstrated in this paper provides insights into the usefulness of embedding a fully calibrated DTA model into the analysis tools of a traffic management and information center. |
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Keywords: | Traffic delay Dynamic traffic assignment Incident management Travel time Traveler information |
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