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Author: Darren J. Torbic Publisher: Transportation Research Board ISBN: 0309117992 Category : Technology & Engineering Languages : en Pages : 284
Book Description
This report provides guidance for the design and application of shoulder and centerline rumble strips as an effective crash reduction measure, while minimizing adverse effects for motorcyclists, bicyclists, and nearby residents. Using the results of previous studies and the research conducted under this project, safety effectiveness estimates were developed for shoulder rumble strips on rural freeways and rural two-lane roads and for centerline rumble strips on rural and urban two-lane roads.
Author: Darren J. Torbic Publisher: Transportation Research Board ISBN: 0309117992 Category : Technology & Engineering Languages : en Pages : 284
Book Description
This report provides guidance for the design and application of shoulder and centerline rumble strips as an effective crash reduction measure, while minimizing adverse effects for motorcyclists, bicyclists, and nearby residents. Using the results of previous studies and the research conducted under this project, safety effectiveness estimates were developed for shoulder rumble strips on rural freeways and rural two-lane roads and for centerline rumble strips on rural and urban two-lane roads.
Author: Chung S. Chen Publisher: ISBN: Category : Roads Languages : en Pages : 78
Book Description
The Run-off-the-Road (ROTR) type of accident has been a predominant factor in highway fatalities nationwide. This situation has created a major concern and challenge for traffic management within transportation departments. Shoulder rumble strips are new traffic control devices for interstate and limited access roadway systems, which hold great potential for reducing ROTR accidents. Consequently, they have become a critical and attractive subject for highway safety improvements. Although shoulder rumble strips have been recognized as an effective measure and have been widely tested by 35 state agencies and several countries, the rolled type rumble strip is found most often in the literature. The optimal design patterns among the available types and their effectiveness have not been quantitatively tested and confirmed. This paper reexamines different typical patterns using field tests, implementation surveys from agencies, and mathematical analysis. A model has been developed to determine the optimal patterns. The results reveal that a milled pattern is superior to a rolled pattern for asphalt shoulders in terms of audibility and tactility effectiveness, quality control and ease of construction. The corrugated pattern is practical for concrete shoulders. Evidence is presented that existing implementation of policy and design criteria for rolled rumble strips should be modified and that more research is needed to determine the degree of effectiveness.
Author: Eugene Russell Publisher: Transportation Research Board ISBN: 0309070201 Category : Road markings Languages : en Pages : 72
Book Description
TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 339: Centerline Rumble Strips (CLRS) examines current design, installation, configuration, dimension, and visibility issues associated with CLRS. The report addresses the need for guidance on warrants, benefits, successful practices, and concerns such as external noise and the reduced visibility of centerline striping material. Also addressed are pavement deterioration, ice buildup in the grooves, adverse impact on emergency vehicles, and the effect of CLRS on bicyclists. Particular attention was paid to available before-and-after CLRS installation crash data to document the safety aspects of CLRS and the availability of policies, guidelines, warrants, and costs regarding their use and design.
Author: Douglas W. Harwood Publisher: ISBN: Category : Health & Fitness Languages : en Pages : 84
Book Description
This synthesis will be of interest to traffic engineers, highway design engineers, highway maintenance personnel, those responsible for toll plaza design and operation, and others concerned with the operation, safety and design of the roadway environment. Information is presented on the various applications of rumble strips on the traveled way and on highway shoulders. This synthesis describes the state of the practice with respect to placement, operational and safety effects, design, installation, and cost and service life of rumble strips. This report of the Transportation Research Board also discusses the effectiveness of rumble strips in preventing or reducing accidents. It provides information on the potential adverse effects of rumble strips, such as noise, motorist use of opposing lanes to avoid rumble strips, maintenance problems, and concerns of special users such as senior citizens, bikers, and truckers. The need for signing and public information support are also discussed. The synthesis presents several recommendations for future research.
Author: Darren J. Torbic
Author: Darren J. Torbic
Author: Chung S. Chen
Author: Rick L. Morgan
Author: Shashi Sathisan Nambisan
Author: Kerry Victoria Perrillo
Author: Eugene Russell
Author: 
Author: Douglas W. Harwood
Author: A. M. Khan
Author: Sushmita Khanal