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Analytical Models for Vehicle/Gap Distribution on Automated Highway Systems

Author

Listed:
  • H.-S. Jacob Tsao

    (Institute of Transportation Studies, University of California, Berkeley, California 94720)

  • Randolph W. Hall

    (Department of Industrial and Systems Engineering, University of Southern California, Los Angeles, California 90089)

  • Indrajit Chatterjee

    (Department of Industrial Engineering and Operations Research, University of California, Berkeley, California 94720)

Abstract

Highway congestion has in recent years become a pervasive problem for urban and suburban areas alike. The concept of Automated Highway Systems is based on the belief that integration of sensing, communication, and control technologies into vehicles and highways can lead to a large improvement in capacity and safety without requiring a significant amount of additional highway right-of-way. A fundamental determinant of Automated Highway Systems capacity is the vehicle-following rule, the rule that governs the behavior of vehicles traveling along a common lane (e.g., the spacing between any two longitudinally adjacent vehicles). Vehicle following affects the longitudinal capacity (achievable flow within a lane), the lateral capacity (achievable flow between lanes) and the conflicting relationship between the longitudinal flow and lateral capacity. The issues are investigated by developing probabilistic models for vehicle/platoon and gap distributions, for vehicles that travel in platoons, in slots, or as free-agents. Mathematical models are also developed to estimate the completion time of a lane change, which can be used as a surrogate for the lateral capacity. Numerical results for the three major vehicle-following rules and their comparison are also provided.

Suggested Citation

  • H.-S. Jacob Tsao & Randolph W. Hall & Indrajit Chatterjee, 1997. "Analytical Models for Vehicle/Gap Distribution on Automated Highway Systems," Transportation Science, INFORMS, vol. 31(1), pages 18-33, February.
    • Handle: RePEc:inm:ortrsc:v:31:y:1997:i:1:p:18-33
    DOI: 10.1287/trsc.31.1.18
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    File URL: http://dx.doi.org/10.1287/trsc.31.1.18
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    Cited by:

    1. Tsao, H. S. Jacob & Zhang, Lan & Lin, Lin & Batni, Deepa, 2004. "Evaluation of Bus and Truck Automation Operations Concepts," Institute of Transportation Studies, Research Reports, Working Papers, Proceedings qt2f41h8fv, Institute of Transportation Studies, UC Berkeley.
    2. Hall, Randolph W. & Caliskan, Cenk, 1997. "Design And Evaluation Of An Automated Highway System With Optimized Lane Assignment," Institute of Transportation Studies, Research Reports, Working Papers, Proceedings qt6c85n2p5, Institute of Transportation Studies, UC Berkeley.
    3. Tsao, H.-S. Jacob & Botha, Jan L., 2002. "Definition and Evaluation of Bus and Truck Automation Operations Concepts," Institute of Transportation Studies, Research Reports, Working Papers, Proceedings qt4qm8w54d, Institute of Transportation Studies, UC Berkeley.
    4. Taso, H. S. Jacob & Botha, Jan L., 2003. "Definition and Evaluation of Bus and Truck Automation Operations Concepts: Final Report," Institute of Transportation Studies, Research Reports, Working Papers, Proceedings qt9pz7n1gr, Institute of Transportation Studies, UC Berkeley.
    5. Hall, Randolph & Chin, Chinan, 2002. "Vehicle Sorting for Platoon Formation: Impacts on Highway Entry and Throughput," Institute of Transportation Studies, Research Reports, Working Papers, Proceedings qt58t3f9p8, Institute of Transportation Studies, UC Berkeley.

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