Modeling Cooperative Lane Changing and Forced Merging Behavior

Merging locations are major sources of freeway bottlenecks. Microscopic simulation tools are receiving increased popularity in analyzing these bottlenecks and designing optimum geometric configurations and control strategies. Existing approaches do not explicitly consider cooperation among drivers and aggressive merges by impatient drivers and often over-predict congestion. We present a combined merging model that has normal, cooperative and forced merging components integrated in a single framework. Parameters of the model have been estimated with detailed vehicle trajectory data collected from Interstate-80, California. Two simpler models: a. Single Level Gap Acceptance Model and b. Explicit Forced Merging Model are also presented to demonstrate the importance of explicitly including courtesy and forced merging in the decision framework. Statistical comparisons of estimation results indicate that the combined model has significantly better goodness-of-fit compared to the simpler models. All three models were implemented within the microscopic traffic simulation tool MITSIMLab and validated against aggregated trajectory data collected from US 101, California, which has a different geometric configuration than the estimation data collection site. The model validation results also support the behavioral hypotheses and confirm that the combined model performs significantly better compared to the simpler models.


  • English

Media Info

  • Media Type: CD-ROM
  • Features: Figures; References; Tables;
  • Pagination: 16p
  • Monograph Title: TRB 86th Annual Meeting Compendium of Papers CD-ROM

Subject/Index Terms

Filing Info

  • Accession Number: 01049614
  • Record Type: Publication
  • Report/Paper Numbers: 07-3315
  • Files: TRIS, TRB
  • Created Date: Feb 8 2007 8:00PM