RELATION OF TRAFFIC SIGNALS TO INTERSECTION ACCIDENTS
TRAFFIC INTERSECTION ACCIDENT STUDIES ARE REVIEWED. EXAMPLES ARE PRESENTED OF ACCIDENT EXPERIENCE BEFORE AND AFTER INSTALLATIONS OF STOP-GO AND FLASHER SIGNALS. TRAFFIC- VOLUME CHARACTERISTICS AT SELECTED INTERSECTIONS INDICATE THAT TRAFFIC IS TOO HEAVY FOR STOP SIGNS, BUT DOES NOT QUITE WARRANT A SEPARATION OF GRADES. A STOP-GO INTERSECTION STUDIED INDICATES THAT THE STOP-GO SIGNAL IS NOT A CURE- ALL. THE PROBABILITY IS SUGGESTED THAT VOLUMES ARE CROWDING THE LIMIT FOR THIS KIND OF CONTROL, AND MOST OF THE INTERSECTIONS ARE EXPOSED TO THE HAZARDS CREATED BY ROADSIDE BUSINESS DEVELOPMENT. COLLISION DIAGRAMS INDICATE THAT THESE ISOLATED CONTROLS INTRUDE UNEXPECTEDLY INTO THE HIGH-SPEED CHARACTERISTICS OF RURAL TRUNKLINE TRAFFIC. IT IS CONCLUDED THAT FLASHERS ARE UNEQUAL TO THE TASK OF ASSIGNING USE WHEN TRAFFIC VOLUMES ARE HIGH. IT IS CONCLUDED THAT SPECIAL SIGNALS ARE NEEDED TO BE DESIGNED FOR THIS SERVICE.
- Record URL:
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Supplemental Notes:
- No 74, pp 46-53, 10 FIG 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
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Authors:
- McMonagle, J Carl
- Publication Date: 1953
Media Info
- Monograph Title: Traffic-accident studies
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Serial:
- Highway Research Board Bulletin
- Issue Number: 74
- Publisher: Highway Research Board
Subject/Index Terms
- TRT Terms: Before and after studies; Businesses; Crash analysis; Crash diagrams; Economic conditions; Flashing traffic signals; Intersections; Roadside structures; Traffic crashes; Traffic signals; Traffic volume
- Subject Areas: Economics; Highways; Operations and Traffic Management; Safety and Human Factors;
Filing Info
- Accession Number: 00220326
- Record Type: Publication
- Files: TRIS, TRB
- Created Date: Aug 3 1970 12:00AM