Travel time reliability versus safety: A stochastic risk-based acceleration modeling approach

Samer H. Hamdar, Alireza Talebpour, Jing Dong

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

Abstract

This paper presents a modeling approach to linking stochastic acceleration behavior to travel time reliability on congested freeways. Individual driving behavior is represented by a prospect theory based model that takes into account uncertainty and risk-based evaluation of the gains and losses while following a lead vehicle. Given a set of stimuli (i.e. headways, relative speeds, etc.), the stochastic acceleration model generates acceleration probability distribution functions rather than simple acceleration deterministic values. Such distribution functions may be integrated across the link and across the vehicles at different time steps. Numerical results from a Monte Carlo simulation demonstrate that the proposed microscopic stochastic modeling approach produces a realistic macroscopic traffic flow pattern and can be used to generate travel time distributions. With proper experimental set-up and sensitivity analysis, the travel time distributions may be linked to the drivers' safety-based parameters.

Original languageEnglish (US)
Title of host publication2013 16th International IEEE Conference on Intelligent Transportation Systems
Subtitle of host publicationIntelligent Transportation Systems for All Modes, ITSC 2013
Pages1852-1857
Number of pages6
DOIs
StatePublished - Dec 1 2013
Externally publishedYes
Event2013 16th International IEEE Conference on Intelligent Transportation Systems: Intelligent Transportation Systems for All Modes, ITSC 2013 - The Hague, Netherlands
Duration: Oct 6 2013Oct 9 2013

Publication series

NameIEEE Conference on Intelligent Transportation Systems, Proceedings, ITSC

Other

Other2013 16th International IEEE Conference on Intelligent Transportation Systems: Intelligent Transportation Systems for All Modes, ITSC 2013
CountryNetherlands
CityThe Hague
Period10/6/1310/9/13

Keywords

  • Car-following
  • Monte Carlo simulation
  • prospect theory
  • reliability
  • safety
  • travel time distribution

ASJC Scopus subject areas

  • Automotive Engineering
  • Mechanical Engineering
  • Computer Science Applications

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