MODELING THE WALK MODE

This description of how the walk mode is incorporated in the LGORU public transport modelling suite TRANSEPT (a sequence of models designed for short and medium term bus planning), includes a discussion of the relationship between bus and walk modes and an outline of the problems of scale that make walk modelling difficult. Some methods of estimating walk times are sketched, and theoretical problems involved in the incorporation of the walk mode in the modal split model are explored. The formulation of TRANSEPT's bus network representation is outlined in order to demonstrate how the role of walking as a feeder to bus services can be modelled. TRANSEPT models its modal split model so that predicted traveller's behaviour takes account of the availability of the walk alternative. The basis of the formulation is the generalized cost function which weights together the deverse characteristics of travel alternatives particularly the component times and costs of different parts of the journey. With this measure a comparison of the relative attractiveness of the alternatives available can be carried out which ultimately leads to a prediction of the number of travellers using each.

• Supplemental Notes:
  • This paper appears in "Urban Traffic Models", which is a publication containing the Proceedings of Seminar N of the Summer Annual Meeting at University of Warwick, England during July, 1975.
• Corporate Authors:

  Planning and Transport Res and Computation Co Ltd

  167 Oxford Street
  London W1R 1AH,   England 
• Authors:
  • LAST, A
  • DALY, A J
• Publication Date: 1975-7

Media Info

• Features: References;
• Pagination: p. 333-340
• Serial:
  • Publication of: IRCOBI SECRETARIAT
  • Publisher: IRCOBI (International Research Council on the Biokinetics of Impacts)

Subject/Index Terms

• TRT Terms: Bus transportation; Economics; Mathematical models; Modal split; Public transit; Time; Transportation; Walking
• Uncontrolled Terms: Models
• Old TRIS Terms: User characteristics
• Subject Areas: Economics; Operations and Traffic Management; Planning and Forecasting; Transportation (General);

Filing Info

• Accession Number: 00148106
• Record Type: Publication
• Report/Paper Numbers: P122
• Files: TRIS
• Created Date: Feb 23 1981 12:00AM