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TRANSIMS Implementation for a Small Network and Comparison with Enhanced Four-Step Model

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  • Jeihani, Mansoureh
  • Ardeshiri, Anam

Abstract

Travel demand forecasting is a major tool to assist decision makers in transportation planning. While the conventional four-step trip-based approach is the dominant method to perform travel demand analysis, behavioral advances have been made in the past decade. This paper proposes and applies an enhancemnt to the four-step travel demand analysis model called Sub-TAZ. Furthermore, as an initial step toward activity-based models, a TRANSIMS Track-1 approach is implemented utilizing a detailed network developed in Sub-TAZ approach. The conventional four-step, Sub-TAZ, and TRANSIMS models were estimated in a small case study for Fort Meade, Maryland, with zonal trip tables. The models were calibrated and validated for the base year (2005), and the forecasted results for the year (2010) were compared to actual ground counts of traffic volume and speed. The study evaluated the forecasting ability of TRANSIMS versus the conventional and enhanced fourstep models and provided critical observations concerning strategies for the further implementation of TRANSIMS.

Suggested Citation

  • Jeihani, Mansoureh & Ardeshiri, Anam, 2014. "TRANSIMS Implementation for a Small Network and Comparison with Enhanced Four-Step Model," Journal of the Transportation Research Forum, Transportation Research Forum, vol. 53(01).
    • Handle: RePEc:ags:ndjtrf:207426
    DOI: 10.22004/ag.econ.207426
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    References listed on IDEAS

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