00464601

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http://onlinepubs.trb.org...trr/1987/1111/1111-012.pdf

https://scholar.google.co...nich&publication_year=1987

A new concept in traffic control devices is evaluated. The subject of the study is a special message information sign on US-14A near Burgess Junction, Wyoming. The sign presents motorists with percent and length of grade information in response to a long sustained 10 percent downgrade. This diagrammatic sign is located in a turnout. Vehicles such as tractor semitrailers, single-unit trucks, motor homes, and vehicles pulling trailers are required to turn out and read the sign. This method for presenting complex information to motorists is effective and the compliance with the required turnout is high.

Publication of this paper sponsored by Committee on User Information Systems. 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

00496549

Macbeth, Andrew G

pp 104-109

1987

Transportation Research Record

0-309-04463-4

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Figures (1) ; Maps (3) ; Photos (4) ; References (14) ; Tables (1)

Compliance; Diagrams; Driver information systems; Measures of effectiveness; Railroad turnouts; Road downgrades; Signs; Traffic control devices

Diagrammatic signs; Effectiveness

Highways; Operations and Traffic Management; Safety and Human Factors; I73: Traffic Control

TRIS, TRB

Dec 31 1987 12:00AM

• A METHOD OF CALCULATING THE EFFECTIVE INTENSITY OF MULTIPLE-FLICK FLASHTUBE SIGNALS
• A STUDY OF ROUTE SELECTION FROM HIGHWAY MAPS (ABRIDGMENT)
• ADVISORY SPEED SIGNS AND CURVE SIGNS AND THEIR EFFECT ON DRIVER EYE SCANNING AND DRIVING PERFORMANCE
• ALTERNATIVES TO ENFORCEMENT IN MODIFYING THE SPEEDING BEHAVIOR OF DRIVERS
• ANALYSIS OF HIGH-HAZARD LOCATIONS: IS AN EXPERT SYSTEMS APPROACH FEASIBLE?
• CRASH REVISITED: ADDITIONS TO ITS CLARITY, GENERALITY, AND UTILITY
• DEMONSTRATION OF REGRESSION ANALYSIS WITH ERROR IN THE INDEPENDENT VARIABLE
• EVALUATION OF ALTERNATIVE SIGN-LIGHTING SYSTEMS TO REDUCE OPERATING AND MAINTENANCE COSTS (DISCUSSION AND CLOSURE)
• EVALUATION OF OPPORTUNITY-BASED ACCIDENT RATE EXPRESSIONS
• EVALUATION OF THE EFFECTIVENESS OF CRASH CUSHION DELINEATION
• EXCESS TRAVEL: CAUSES, EXTENT, AND CONSEQUENCES
• RELATIONSHIPS BETWEEN VERTICAL AND HORIZONTAL ROADWAY ALIGNMENTS AND THE INCIDENCE OF FATAL ROLLOVER CRASHES IN NEW MEXICO AND GEORGIA
• SAFETY IMPLICATIONS OF TRUCK CONFIGURATION
• STANDARD TARGET CONTRAST: A VISIBILITY PARAMETER BEYOND LUMINANCE TO EVALUATE THE QUALITY OF ROADWAY LIGHTING
• VALIDATION OF A NONAUTOMATED SPEED DATA COLLECTION METHODOLOGY
• VIDEO COLLISION RECONSTRUCTION USING PHYSICAL EVIDENCE