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Dear SimSub members, friends and visitors,


This website has been decommissioned after Jan-2019. For the latest information, news and documents about the TRB simsub joint committee. Please Visit:


        Find information about Committee Chairs and Liaisons here.


The SimSub  has been formed with an objective to coordinate the efforts of the parent committees to promote and endorse use of simulation tools in transportation system analysis. As technology advances, traffic simulation is playing an increasing role as a problem solving tool for transportation system analysis. The interest in simulation cuts across the boundaries of several TRB committees and there is a need to coordinate the efforts to avoid duplication of works and potential conflicts.


The main SimSub objectives have been identified, as a result of discussions held in previous meetings, as activities to:


1.       Provide a forum for presentation, discussion and dissemination of information on traffic simulation models.

2.       Recommend parent committee actions on:

a.       Capabilities of existing models

b.      “Best practices” and guidelines of model application

c.       Development of improved models

d.      Calibration and validation issues

3.       Maintain liaison with other TRB committees and FHWA, especially with the NGSIM project.

4.       Promote basic research on simulation models

5.       Identify data needs and research problem statements


We welcome your participation in SimSub activities and your comments on how to improve SimSub’s impact on traffic simulation industry. If you are not currently a friend of the SimSub please join our subcommittee by clicking here (should have the link to the same ‘send request’ link which is given on the page “Contact Us”).


Dr. Mohammed Hadi,


SimSub Chair


  • Call for abstracts

    • RSS2017 - Road Safety & Simulation International Conference here!
  • Newsletters

    • 2015 Annual SimSub Newsletter is available here!
    • 2015 Mid-Year SimSub Newsletter is available here!
  • Meetings

    • The agenda for 2014 TRB SimSub Meeting is posted here!
    • The agenda for 2014 TRB Sunday Workshop on Simulation can be found here!
  • Others

    • SHRP2 Announcement here!
    • SimCap goes International! What is SimCap? Find more information here!
    • A link to new Wisconsin DOT Guidelines for Model Scoping, Forking, and Scenarios can be found here!
    • A link to new Wisconsin DOT Microsimulation Model Calibration Guideline can be found here!
    • Links with photos from TFTC Summer Meeting in Annecy (France) are available here!
    • Watch traffic animations of TEXAS Model for Intersection from '70s, '80s, and '90s on YouTube! Find links here!
    • Draft version of the 2014 TRB Sunday Workshop papers can be found here!

Pengfei Li (Taylor), Mississippi State University, Web Administrator