Numerical simulation of link travel time with hyperbolic traffic behavior

Ming Chorng Hwang*, Hsun-Jung Cho

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Link travel time function acts an essential role in both operational and planning intent of traffic simulation. It is also a key component in dynamic traffic assignment to capture the traffic dynamics concerning about time-varying traffic states, time-space propagation, and their interdependences. A procedure of calculating link travel time based on the numerical simulation of hyperbolic traffic flow is developed in this paper. The passage of traffic within a link is traced according to uniform partitioned meshes in a time-space plane. Traffic movements in each grid cell are decomposed into three states: entering state, intermediate state, and leaving state. Travel time in each state is calculated by using the approximations of finite-difference-based numerical results for the corresponding grid cells. These travel times of minute grids are collected to build the travel time of a link. Finally, a numerical example is illustrated to show the verification of the proposed method.

Original languageEnglish
Title of host publicationProceedings of ITSC 2006
Subtitle of host publication2006 IEEE Intelligent Transportation Systems Conference
Pages400-405
Number of pages6
DOIs
StatePublished - 1 Dec 2006
EventITSC 2006: 2006 IEEE Intelligent Transportation Systems Conference - Toronto, ON, Canada
Duration: 17 Sep 200620 Sep 2006

Publication series

NameIEEE Conference on Intelligent Transportation Systems, Proceedings, ITSC

Conference

ConferenceITSC 2006: 2006 IEEE Intelligent Transportation Systems Conference
CountryCanada
CityToronto, ON
Period17/09/0620/09/06

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