Dynamic Assignment Modelling with Trips

by Hugh Neffendorf, MVA House, United Kingdom,
Miles Logie, MVA House, United Kingdom,
Roger Witte, MVA House, United Kingdom,

Document Type: Proceeding Paper

Part of: Microcomputer Applications in Transportation III


This paper describes additional ways in which TRIPS models time-varying, or 'dynamic' effects. These include area-wide effects as vehicles move through the network, interactions between intersections, and the effects of extended modelling periods. Although the modelling changes are directed at the behavior of traffic on a network, a significant result is the information given about the consequences for the demand for travel. This information is in the form of a pair of Origin-Destination (O-D) matrices. The paper considers the issues addressed by dynamic modelling and the key elements of the TRIPS implementation. The methods used are briefly described, and the paper concludes by considering how dynamic modelling may best be applied.

Subject Headings: Dynamic models | Travel modes | Traffic models | Computer models | Travel patterns | Computer software | Traffic analysis | Traffic surveys

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