Traffic Assignment Using a Density-Based Travel-Time Function for Intelligent Transportation Systems
Document Type
Article
Publication Date
1-1-2016
Publication Title
IEEE Transactions on Intelligent Transportation Systems
Volume
17
Issue
5
First page number:
1438
Last page number:
1447
Abstract
This paper presents and shows why density-based travel-time function is consistent with the fundamental diagram from traffic theory and then reviews the applications of travel time in intelligent transportation systems. This paper presents a density-based travel-time function that does not have the ill-posedness that is present in flow-based travel-time functions. The classic steady-state traffic assignment is cast using this new travel-time function, and corresponding mathematical programming formulations are proposed. It is shown that the modified Beckman formulation based on the density-based travel-time function provides a unique solution for link flows and link densities where the Wardrop condition has nonunique values for arc traffic densities. © 2000-2011 IEEE.
Keywords
shockwaves; traffic assignment; Travel time
Language
English
Repository Citation
Kachroo, P.,
Sastry, S.
(2016).
Traffic Assignment Using a Density-Based Travel-Time Function for Intelligent Transportation Systems.
IEEE Transactions on Intelligent Transportation Systems, 17(5),
1438-1447.
http://dx.doi.org/10.1109/TITS.2015.2503348