| EPSRC Reference: |
GR/L15470/01 |
| Title: |
AN INNOVATIVE APPROACH TO DYNAMIC ROAD TRAFFIC ASSIGNMENT |
| Principal Investigator: |
Heydecker, Professor B |
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| Department: |
Civil Environmental and Geomatic Eng |
| Organisation: |
UCL |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 June 1996 |
Ends: |
30 September 1998 |
Value (£): |
149,926
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| EPSRC Research Topic Classifications: |
| Transport Ops & Management |
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Summary on Grant Application Form |
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Dynamic traffic assignment models describe the route choice behaviour of travellers during periods when demand changes rapidly, and any consequent formation, development and dissipation of congestion. This research will build upon an innovative formulation of dynamic equilibrium assignment which we have discovered recently and which has led to profound insights into its nature. The formulation is exact and characterises all equilibrium assignments. However, it can only be used at present for calculation in small networks. In this project, we will develop this formulation towards a computational procedure that will accommodate road networks of practical sizes and configurations. This will require treatment of routes that overlap for part of their course, travellers entering from several origins and those travelling to distinct destinations. Of the traffic models currently used in this context, not all stand scrutiny as descriptions of the movement of traffic. Of those that do, distinct ones are appropriate for use in undersaturated and in transient oversaturated conditions: we will establish an integrated treatment of these. We will investigate extensions of the analysis including stochastic user equilibrium (drivers with incomplete information) and system optimal (community cost minimising) route choice. This research will provide a fuller understanding of urban traffic congestion and measures to manage it, and will lead towards improved practical modelling techniques.
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Key Findings |
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Potential use in non-academic contexts |
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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