United States Department of Transportation
i
Evaluation of experimental rumble strip areas in Louisiana : interim report No. 1.
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1985-03-01
[PDF-2.45 MB]
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Abstract:This interim report was prepared to provide a review of nineteen rumble strip areas installed experimentally in Louisiana between August 1982 and September 1983. Situated randomly throughout central and southern Louisiana, construction of these coarse-textured, exposed aggregate rumble strip areas was accomplished by district maintenance forces using conventional asphalt spraying equipment.
The purpose of this study is to develop an economical supplement to typical traffic control devices, such as signs or signalization, where a substantial reduction in speed is required to divert driver attention to a potentially hazardous intersection or situation. It is hoped that the intermittent pattern of coarse-textured, exposed aggregate rumble strip areas will increase driver reaction time by providing audible and tactile stimuli to augment or reinforce standard visual traffic control devices. The measure of effectiveness of this procedure would be a reduction in the type and/or severity of accidents before and after installation.
As of this writing, there are nineteen rumble strip areas ranging from one to two years old installed for evaluation. More installations are projected for the near future and will be cited in the final report. This report addresses major areas of concern which focus on installation problems/techniques, durability, maintenance effectiveness, aggregate loss determinations, accident reduction and development of rejuvenation procedures.
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