Integrated Approach for Optimizing Traffic Management Plans during Freeway Incidents

An important concept of integrated corridor management is the coordinated operation of freeways and arterial streets during incidents. A critical component of this coordination is the activation of special signal timing plans to accommodate the diverted traffic on the alternative routes during incidents on the freeway. This study investigates the use of clustering analysis, multi-resolution modeling (MRM), and optimization techniques in the development of such plans. An important aspect of the methodology is the calibration of the utilized mesoscopic simulation-based MRM based on the increase in demands and travel times on alternative routes during incidents. Another important aspect is the use of microscopic simulation-based optimization of signal timing utilizing a multi-objective optimization that jointly minimizes the delays and maximizes the throughputs considering the whole intersections as well the specific impacted movements on the alternative routes. The evaluation of the signal timing plans resulting from the multi-objective signal timing optimization indicates that the derived special signal timing plans are able to reduce the delays and increase the throughputs in the network and particularly for the traffic movements impacted by the diverted traffic. The degrees of improvements depend on the level of impacts of the diverted traffic on the operations of the alternative routes.

Language

  • English

Media Info

  • Media Type: Digital/other
  • Features: Figures; Maps; References; Tables;
  • Pagination: 22p

Subject/Index Terms

Filing Info

  • Accession Number: 01763939
  • Record Type: Publication
  • Report/Paper Numbers: TRBAM-21-01575
  • Files: TRIS, TRB, ATRI
  • Created Date: Dec 23 2020 11:15AM