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The National Academies

NCHRP Synthesis 20-05/Topic 34-01 [Final (Synthesis)]

Centerline Rumble Strips
[ NCHRP 20-05 (Synthesis of Information Related to Highway Practices) ]

  Project Data
Funds: 12000
Staff Responsibility: Donna L. Vlasak
Effective Date: 12/31/2002
Completion Date: 3/17/2005
Fiscal Year: 2002

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.  This topic is published at http://www.trb.org/news/blurb_detail.asp?id=4860


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