DELAYS AT PEDESTRIAN CROSSINGS. 2. THE DEVELOPMENT AND VALIDATION OF A SIMULATION MODEL OF A ZEBRA CROSSING

The rules described in the UK highway code provide a framework for developing a simulation model of a zebra crossing. The program is written in FORTRAN, and the version described in this paper deals with one lane of vehicle flow in each direction at an undivided crossing, with pedestrians able to cross from either side of the road. The assumptions defining the operation of the model are based on site observations. The operation of the model, data input and program output and the validation of the model are described. Overall the simulation results confirm that zebra crossings allow pedestrians to cross the road with relatively small delay, but that vehicle delay can be substantial unless the pedestrian flow is fairly low. The simulation may be used to quantify these effects. As well as allowing investigations of the effect on delay of individual parameters, the model's main attribute is its potential to permit comparison with models of other crossing types. The development and validation of pelican crossing routines, and model comparisons, are the subjects of following articles. (TRRL)

  • Availability:
  • Supplemental Notes:
    • For the first article in the series see Traffic Engineering Control, 1984, vol 25, nos 7/8, pp 365-71.
  • Corporate Authors:

    Printerhall Limited

    29 Newmart Street
    London W1P 3PE,   England 
  • Authors:
    • Griffiths, J D
    • Hunt, J G
    • MARLOW, M
  • Publication Date: 1984-10

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Filing Info

  • Accession Number: 00392987
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Report/Paper Numbers: HS-038 005
  • Files: HSL, ITRD, TRIS
  • Created Date: May 31 1985 12:00AM