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Journal Article

Citation

Wang J, Huang L. J. Wuhan Univ. Technol. Transp. Sci. Eng. 2007; 31(1): 172-175.

Affiliation

Key Laboratory for Special Area Highway Engineering of Ministry of Education, Chang'an University, Xi'an 710064, China

Copyright

(Copyright © 2007, Wuhan University of Technology)

DOI

unavailable

PMID

unavailable

Abstract

Owing to the influence of traffic incidents, natural expressway traffic flow will be influenced. In order to promote dissipation of traffic flow congestion or clog and reduce vehicle queue delay under the influence of traffic incidents, some intervention measures should be adopted in the upper reaches of the origin of traffic incidents. Based on hydrodynamic traffic flow wave theory, it is analyzed the interactive influence of traffic incidents and intervention measures on expressway traffic flow, established traffic flow wave speed model, traffic flow wave position models and corresponding time models under the interactive influence of intervention shock wave and concentration-wave, startup-wave and dissipation-wave result from traffic incidents and relieving diffluent intervention measures time model on the basis of linear model of speed related to traffic density. These models or critical parameters provide theoretical basis for effectively determining schemes to solve traffic incidents and quickly eliminating traffic congestion or clog.

 

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