TECHNIQUES FOR TRIP MODELLING

This paper describes the methods used by the london borough of islington in trip modelling during their transportation study. Since matrices for the base year 1971, were not available from the greater london transportation study until late 1974, base data were synthesized from the 1962 london traffic survey data. In order to determine how trips are generated, each household is allocated to one of 180 categories which depend on household structure, income group and car ownership. For each zone a small survey was performed and probability functions used to find the distribution of categories. To find the distribution of trips between zones a gravity-type model was assumed. The flows on the road network were simulated using standard transportation modelling techniques. The models may then be used to estimate future trip generation and patterns of journeys. It is hoped to develop the distribution model to include trips made by public transport. /TRRL/

• Corporate Authors:

  London Borough of Islington, England

  Planning Department
  London,   England 
• Authors:
  • Blythe, K G
• Publication Date: 1974-3

Language

• English

Media Info

• Features: Figures;

Subject/Index Terms

• TRT Terms: Forecasting; Gravity models; Households; Income; Mathematical models; Methodology; Motor vehicles; Ownership; Probability; Probability theory; Public transit; Simulation; Traffic distribution; Traffic flow; Traffic surveys; Transportation; Travel; Trip generation
• Uncontrolled Terms: Data; Transportation models
• Geographic Terms: United Kingdom
• ITRD Terms: 729: Cross border traffic; 132: Forecast; 663: Generated traffic; 690: Gravity model; 309: Household; 256: Income; 698: Journey; 6473: Mathematical model; 6534: Probability; 9103: Simulation; 671: Traffic flow; 676: Traffic survey; 8119: United Kingdom; 315: Vehicle ownership
• Subject Areas: Operations and Traffic Management; Planning and Forecasting; Transportation (General); I71: Traffic Theory; I72: Traffic and Transport Planning;

Filing Info

• Accession Number: 00125610
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Report/Paper Numbers: Tech. Note 7 R&D Rept.
• Files: ITRD, TRIS
• Created Date: Apr 7 1981 12:00AM