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Travel Time Model of Left-Turning Vehicles at Signalized Intersection

Author

Listed:
  • Leng Jun-qiang
  • Feng Yu-qin
  • Zhai Jing
  • Bao Lei
  • He Yi

Abstract

The travel time of left-turning vehicles at signalized intersection was discussed. Under the assumption that the opposing through vehicles headway follows M3 distribution, the travel time model was established on the basis of gap theory and queue theory. Comparison was done with the common model based on the assumption that the opposing through vehicles headway follows negative exponential distribution. The results show that the model in this paper has stronger applicability and its most relative error is less than 15%. In addition, the sensitivity analysis was done. The results show that the opposing through flow rate has significant impact on travel time. The impact of left-turning flow rate and following headway is light when the opposing through flow rate is small, the threshold is about 0.18 veh/s. The model established in this paper can well calculate travel time of left-turning vehicles at intersection, and the methodology may provide reference to other occasions.

Suggested Citation

  • Leng Jun-qiang & Feng Yu-qin & Zhai Jing & Bao Lei & He Yi, 2012. "Travel Time Model of Left-Turning Vehicles at Signalized Intersection," Mathematical Problems in Engineering, Hindawi, vol. 2012, pages 1-10, February.
    • Handle: RePEc:hin:jnlmpe:473847
    DOI: 10.1155/2012/473847
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