Effect of traffic reports on commuters' route and departure time changes

Asad J. Khattak*, Joseph L Schofer, Frank S. Koppelman

*Corresponding author for this work

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

10 Scopus citations

Abstract

Considerable public and private resources are devoted to the collection and dissemination of real-time traffic information in the This study was conducted to evaluate the effect of traffic reports on route and departure time changes. Downtown Chicago automobile commuters were surveyed during the AM peak period A majority (more than 60%) of drivers reported that they used traffic reports for modifying their trip decisions. Drivers perceived radio traffic reports positively in terms of information system attributes. Commuters were more likely to use traffic reports for their route changes if they perceived traffic reports to be accurate and timely, frequently listened to traffic reports, perceived their regular route as congested, knew multiple alternate routes, were male and higher income. Drivers were more likely to change departure times if they perceived traffic reports to be accurate and relevant, frequently listened to traffic reports and perceived their regular route as congested. Drivers indicated a relatively lower level of overall satisfaction with traffic reports indicating the existence of opportunities for improvement. One promising improvement is near-term prediction of traffic conditions on congested and unreliable routes (where conditions may change rapidly). This is because: Drivers generally want to know the conditions at any given point (or link) along their route when they reach that point. Drivers would be able to make better and more informed judgments regarding their trip decisions due to reduced uncertainty of traffic conditions. The possibility that drivers may find traffic conditions significantly better or worse would be reduced. This would improve the credibility of radio traffic reports.

Original languageEnglish (US)
Title of host publicationProceedings - Society of Automotive Engineers
PublisherPubl by SAE
Pages669-679
Number of pages11
EditionP-253 pt 2
ISBN (Print)1560911913
StatePublished - Dec 1 1991
EventVehicle Navigation & Information Systems Conference Proceedings Part 2 (of 2) - Dearborn, MI, USA
Duration: Oct 20 1991Oct 23 1991

Publication series

NameProceedings - Society of Automotive Engineers
NumberP-253 pt 2
ISSN (Print)8756-8470

Other

OtherVehicle Navigation & Information Systems Conference Proceedings Part 2 (of 2)
CityDearborn, MI, USA
Period10/20/9110/23/91

ASJC Scopus subject areas

  • Engineering(all)

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