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New appraisal values of travel time saving and reliability in Great Britain

Author

Listed:
  • Richard Batley

    (University of Leeds)

  • John Bates

    (John Bates Services)

  • Michiel Bliemer

    (University of Sydney)

  • Maria Börjesson

    (Royal Institute of Technology)

  • Jeremy Bourdon

    (Arup)

  • Manuel Ojeda Cabral

    (University of Leeds)

  • Phani Kumar Chintakayala

    (University of Leeds)

  • Charisma Choudhury

    (University of Leeds)

  • Andrew Daly

    (University of Leeds)

  • Thijs Dekker

    (University of Leeds)

  • Efie Drivyla

    (Arup)

  • Tony Fowkes

    (University of Leeds)

  • Stephane Hess

    (University of Leeds)

  • Chris Heywood

    (Accent)

  • Daniel Johnson

    (University of Leeds)

  • James Laird

    (University of Leeds)

  • Peter Mackie

    (University of Leeds)

  • John Parkin

    (University of West of England)

  • Stefan Sanders

    (Arup)

  • Rob Sheldon

    (Accent)

  • Mark Wardman

    (University of Leeds)

  • Tom Worsley

    (University of Leeds)

Abstract

This paper provides an overview of the study ‘Provision of market research for value of time savings and reliability’ undertaken by the Arup/ITS Leeds/Accent consortium for the UK Department for Transport (DfT). The paper summarises recommendations for revised national average values of in-vehicle travel time savings, reliability and time-related quality (e.g. crowding and congestion), which were developed using willingness-to-pay (WTP) methods, for a range of modes, and covering both business and non-work travel purposes. The paper examines variation in these values by characteristics of the traveller and trip, and offers insights into the uncertainties around the values, especially through the calculation of confidence intervals. With regards to non-work, our recommendations entail an increase of around 50% in values for commute, but a reduction of around 25% for other non-work—relative to previous DfT ‘WebTAG’ guidance. With regards to business, our recommendations are based on WTP, and thus represent a methodological shift away from the cost saving approach (CSA) traditionally used in WebTAG. These WTP-based business values show marked variation by distance; for trips of less than 20 miles, values are around 75% lower than previous WebTAG values; for trips of around 100 miles, WTP-based values are comparable to previous WebTAG; and for longer trips still, WTP-based values exceed those previously in WebTAG.

Suggested Citation

  • Richard Batley & John Bates & Michiel Bliemer & Maria Börjesson & Jeremy Bourdon & Manuel Ojeda Cabral & Phani Kumar Chintakayala & Charisma Choudhury & Andrew Daly & Thijs Dekker & Efie Drivyla & Ton, 2019. "New appraisal values of travel time saving and reliability in Great Britain," Transportation, Springer, vol. 46(3), pages 583-621, June.
    • Handle: RePEc:kap:transp:v:46:y:2019:i:3:d:10.1007_s11116-017-9798-7
    DOI: 10.1007/s11116-017-9798-7
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    References listed on IDEAS

    as
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    3. Tsoleridis, Panagiotis & Choudhury, Charisma F. & Hess, Stephane, 2022. "Deriving transport appraisal values from emerging revealed preference data," Transportation Research Part A: Policy and Practice, Elsevier, vol. 165(C), pages 225-245.
    4. Walker, Joan L. & Chatman, Daniel & Daziano, Ricardo & Erhardt, Gregory & Gao, Song & Mahmassani, Hani & Ory, David & Sall, Elizabeth & Bhat, Chandra & Chim, Nicholas & Daniels, Clint & Gardner, Brian, 2019. "Advancing the Science of Travel Demand Forecasting," Institute of Transportation Studies, Research Reports, Working Papers, Proceedings qt0v1906ts, Institute of Transportation Studies, UC Berkeley.
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    9. Tjiong, Jeff & Dekker, Thijs & Hess, Stephane & Ojeda Cabral, Manuel, 2022. "The selection of income measures in value of travel time models and their implications for the VTT, its cross-sectional income elasticity and transport appraisal," Research in Transportation Economics, Elsevier, vol. 94(C).
    10. Krčál, Ondřej & Peer, Stefanie & Staněk, Rostislav, 2021. "Can time-inconsistent preferences explain hypothetical biases?," Economics of Transportation, Elsevier, vol. 25(C).
    11. Filipi Nikol & Karlínová Bára & Krčál Ondřej, 2022. "The disutility of driving below the speed limit on highways," Review of Economic Perspectives, Sciendo, vol. 22(4), pages 267-277, December.
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