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Comparison of judgmental and optimal road pricing cordons

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  • Sumalee, Agachai
  • May, Tony
  • Shepherd, Simon
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    Abstract

    The performance of cordon pricing schemes is critically dependent on the location chosen for the cordon, and the toll imposed. Most cordon designs have been based on professional judgment, in the absence of guidance on the principles of efficient design. In this paper, a methodology based on Genetic Algorithms has been developed to identify the optimal location and toll level for one or more cordons, for a given objective function, with or without constraints on the design or required outcomes. To compare the performance of judgmental and optimal cordon designs, the method has been tested on a network of Edinburgh, with optimisation designed to achieve welfare maximisation with and without constraints on desired level of revenue and equity impact. The methodology is shown to generate appropriate solutions to all of these problems. The optimal single cordon achieves welfare benefits which are double those of the best judgmentally designed cordon. Constrained optima inevitably achieve lower benefits, but it is possible to design them so that this loss is minimised.

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    Bibliographic Info

    Article provided by Elsevier in its journal Transport Policy.

    Volume (Year): 12 (2005)
    Issue (Month): 5 (September)
    Pages: 384-390

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    Handle: RePEc:eee:trapol:v:12:y:2005:i:5:p:384-390

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    References

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    Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
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    1. Mun, Se-il & Konishi, Ko-ji & Yoshikawa, Kazuhiro, 2003. "Optimal cordon pricing," Journal of Urban Economics, Elsevier, vol. 54(1), pages 21-38, July.
    2. May, A. D. & Liu, R. & Shepherd, S. P. & Sumalee, A., 2002. "The impact of cordon design on the performance of road pricing schemes," Transport Policy, Elsevier, vol. 9(3), pages 209-220, July.
    3. Verhoef, Erik T., 2002. "Second-best congestion pricing in general networks. Heuristic algorithms for finding second-best optimal toll levels and toll points," Transportation Research Part B: Methodological, Elsevier, vol. 36(8), pages 707-729, September.
    4. Langmyhr, Tore, 1997. "Managing equity : The case of road pricing," Transport Policy, Elsevier, vol. 4(1), pages 25-39, January.
    5. Hyman, Geoffrey & Mayhew, Les, 2002. "Optimizing the benefits of urban road user charging," Transport Policy, Elsevier, vol. 9(3), pages 189-207, July.
    6. Zhang, Xiaoning & Yang, Hai, 2004. "The optimal cordon-based network congestion pricing problem," Transportation Research Part B: Methodological, Elsevier, vol. 38(6), pages 517-537, July.
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    Citations

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    Cited by:
    1. Stewart, Kathryn, 2007. "Tolling traffic links under stochastic assignment: Modelling the relationship between the number and price level of tolled links and optimal traffic flows," Transportation Research Part A: Policy and Practice, Elsevier, vol. 41(7), pages 644-654, August.
    2. Verhoef, Erik T. & Koh, Andrew & Shepherd, Simon, 2010. "Pricing, capacity and long-run cost functions for first-best and second-best network problems," Transportation Research Part B: Methodological, Elsevier, vol. 44(7), pages 870-885, August.
    3. André De Palma & Moez Kilani & Michel De Lara & Serge Piperno, 2011. "Cordon pricing in the Monocentric city model: Theory and application to Ile-de- France," Post-Print hal-00348437, HAL.
    4. Mogens Fosgerau & Kurt van Dender, 2010. "Road Pricing with Complication," OECD/ITF Joint Transport Research Centre Discussion Papers 2010/2, OECD Publishing.
    5. Erik T. Verhoef & Andrew Koh & Simon Shepherd, 2008. "Pricing, Capacity and Long-run Cost Functions for First-best and Second-best Network Problems," Tinbergen Institute Discussion Papers 08-056/3, Tinbergen Institute.
    6. André De Palma & Moez Kilani & Michel De Lara & Serge Piperno, 2011. "Cordon pricing in the monocentric city: theory and application to Paris region," Recherches économiques de Louvain, De Boeck Université, vol. 77(2), pages 105-124.
    7. Maruyama, Takuya & Sumalee, Agachai, 2007. "Efficiency and equity comparison of cordon- and area-based road pricing schemes using a trip-chain equilibrium model," Transportation Research Part A: Policy and Practice, Elsevier, vol. 41(7), pages 655-671, August.
    8. Hammar, Henrik & Jagers, Sverker C., 2007. "What is a fair CO2 tax increase? On fair emission reductions in the transport sector," Ecological Economics, Elsevier, vol. 61(2-3), pages 377-387, March.
    9. Agachai Sumalee & Simon Shepherd & Anthony May, 2009. "Road user charging design: dealing with multi-objectives and constraints," Transportation, Springer, vol. 36(2), pages 167-186, March.

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