Completed Projects
Driver Use of Real-Time En-Route Travel Time Information
The major objectives of this study were to:
- Assess impacts of en-route real-time travel time/delay/speed information on drivers
- Define the most effective way to provide en-route real-time travel time information
- Develop preliminary guidance to practitioners for delivering en-route travel time information
The focus was on en route travel time (or speed, delay) information presented by means of changeable message sign (CMS) displays. The study considered what information should be disseminated, where the information should be disseminated, how that information should be formatted, and operational characteristics of the information delivery methods and systems. The empirical research focused on driver decision outcomes as related to real-time information. Field implementations and network performance simulations were not within the scope of this project.
Contact Information
To request final documents or materials related to this project, provide feedback and comments, report errors in the final report, or web site questions, contact:
Jon Obenberger
(202) 493-3265
Jon.Obenberger@dot.gov
Available Products
- Project Report (PDF 11MB)
- White Paper (PDF 137KB)
- Project Fact Sheet (PDF 88KB)
Technical References
- Human Factors Design Guidelines for ATIS/CVO
- Development of Human Factors Guidelines for ATIS and CVO: Comparable Systems Analysis
- Development of Human Factors Guidelines for ATIS: Definition and Prioritization of Research Studies
- Amber, Emergency, and Travel Time Messaging Guidance for Transportation Agencies
