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Title: PRESENTING DESCRIPTIVE INFORMATION IN VARIABLE MESSAGE SIGNING
Accession Number: 00639991
Record Type: Component
Availability: Find a library where document is available Abstract: In a study of driving simulators the effects on route choice and driving behavior of presenting descriptive types of information on variable message (route guidance) signs were evaluated. Subjects had to choose between a normal route to a fixed destination, which could suffer from congestion of varying severity, and an alternative route. Three modes of variable information presentation were compared: (a) length of congestion, in kilometers; (b) delays relative to normal travel times, in minutes; and (c) travel times, in minutes. The reliability of the information was also varied and could be high, intermediate, or low. Thirty-six men participated in the experiment, and every subject made 123 runs in the simulator. By presenting descriptive information, divergence levels were found that varied widely over the range from 0 to 100%, as a function of the actual information given. This is to be compared with the inflexibility of conventional (prescriptive) signing. User optimum was most often reached by presenting travel time information. Such information also proved to be most resistant against degradations in reliability. There was an overall increase in driving speed when descriptive information was given, and this may be interpreted as anticipatory behavior from the side of the driver to compensate for the expected delay upon finding the normal route to be congested.
Supplemental Notes: This paper appears in Transportation Research Record No. 1403, Driver Performance: Measurement and Modeling, IVHS, Information Systems, and Simulation. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
Monograph Title: DRIVER PERFORMANCE: MEASUREMENT AND MODELING, IVHS, INFORMATION SYSTEMS, AND SIMULATION Monograph Accession #: 00669186
Language: English
Corporate Authors: Transportation Research Board 500 Fifth Street, NW Authors: Janssen, Wielvan der Horst, RichardPagination: p. 83-87
Publication Date: 1993
Serial: Features: Figures
(6)
; References
(7)
TRT Terms: Uncontrolled Terms: Subject Areas: Highways; Operations and Traffic Management; Safety and Human Factors; I73: Traffic Control
Files: TRIS, TRB, ATRI
Created Date: Dec 20 1993 12:00AM
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