MICROSCOPIC TRAFFIC MODELING WITH THE FINITE DIFFERENCE METHOD
A traffic congestion forecasting model (ATOP), developed in the present investigation, is described briefly. Several macroscopic models, based on the solution of the partial differential equation of conservation of vehicles by the finite difference method were tested using actual traffic data. The functional form, as well as parameters, of the equation of state which describes the relation between traffic speed and traffic density, were determined for a section of the Long Island Expressway. The Lax method and the forward difference technique were applied. The results of extensive tests showed that the Lax method, in addition to giving very good agreement with the traffic data, produces stable solutions.
- Sponsored by Department of Energy, Washington, DC.
Brookhaven National LaboratoryAssociated Universities, Incorporated
Upton, NY United States 11973
- Publication Date: 1996-3-15
- Pagination: 28 p.
- TRT Terms: Finite differences; Forecasting; Traffic congestion; Traffic models
- Uncontrolled Terms: Congestion
- Old TRIS Terms: Macroscopic modeling
- Subject Areas: Highways; Operations and Traffic Management; I73: Traffic Control;
- Accession Number: 00730646
- Record Type: Publication
- Report/Paper Numbers: BNL-61408
- Files: TRIS
- Created Date: Feb 3 1997 12:00AM