Capacity Deterioration with Elastic Demand in Road Segment

To explicitly analyze the stability of traffic flow and the capacity drop, the paper develops a link traffic simulation model based on the elastic demand depending on travel time. The traffic demand decreases when the travel time is prolonged under the elastic traffic demand. The travel time lies on the traffic condition of road segment, and the traffic state is evaluated with the MITSIM model. The results show that the link flow will be stable under the natural restrictions of traffic demand and travel time. The unsaturated stable flow will reach the maximum capacity with the traffic pressure boost. The saturated stable flow will below the maximum capacity and the flow volume will decrease with the increase of traffic pressure. To avoid the travel capacity reduction, all the link capacities should be considered in traffic planning for the entire transport network.

• Record URL:
  • https://doi.org/10.1016/S1570-6672(11)60187-6
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/15706672
• Supplemental Notes:
  • Abstract reprinted with permission from Elsevier
• Authors:
  • Liu, Lijuan
  • Zhang, Ning
  • Chen, Di
  • Liu, Jian
  • 0000-0001-8368-6228
• Publication Date: 2012-2

Language

• English

Media Info

• Media Type: Print
• Features: References;
• Pagination: pp 98-104
• Serial:
  • Journal of Transportation Systems Engineering and Information Technology
  • Volume: 12
  • Issue Number: 1
  • Publisher: Elsevier
  • ISSN: 1570-6672
  • Serial URL: http://www.sciencedirect.com/science/journal/15706672

Subject/Index Terms

• TRT Terms: Highway capacity; Traffic flow; Traffic models; Traffic simulation; Travel demand; Travel time
• Subject Areas: Highways; Operations and Traffic Management; I71: Traffic Theory;

Filing Info

• Accession Number: 01369840
• Record Type: Publication
• Files: TRIS
• Created Date: May 16 2012 3:04PM