Trip Degeneration: A Literature Review

This article is from another special issue devoted to the work of John Roberts, the transportation consultant who founded and managed the consultancy Transport & Environment Studies (TEST) in London. This special issue makes reports and articles from John Roberts available for the first time in electronic format. The articles and reports provide clarity, insights, and policy suggestions, particularly with regard to sustainable transport. In this issue, the reprints are focused around the idea that endless growth in vehicle numbers, car dependency, and distances travelled is avoidable. Roberts called this “trip degeneration,” which emphasizes the multiple advantages associated with increases in walking and bicycling, including for traditional retail areas. This article reprints a 1992 literature review on trip degeneration, focusing on problems associated with predicting traffic growth and work related to reducing the need for car-based travel. This text-based literature review discusses the laissez-faire attitude to land use planning; models of land use and transport planning; transportation studies and trip generation data; socioeconomic factors including environmental (pollution, energy), and social (equity, health and safety, accessibility, efficiency); the processes of change, including planning, density, land use mixing, localization/proximity, and traffic planning (traffic calming, pedestrianization); technology; travel behavior; journey characteristics; travel mode and modal choice; and trip purpose. The literature review includes a brief subject index.


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  • Accession Number: 01711140
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jul 7 2019 6:52AM