This report of the Transportation Research Board will be of interest to transportation agencies, as well as to others in the transportation community who are interested in the installation of centerline rumble strips (CLRS). The synthesis was undertaken to address the need for state-of-the-practice information relative to CLRS use and/or design. It summarizes current design practices, installation, configuration, dimensions, and visibility. The synthesis addresses the need for guidance on warrants, benefits, successful practices, and concerns (e.g., 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/publisher) This report may be accessed by Internet users at http://www.trb.org/publications/nchrp/nchrp_syn_339.pdf
Samenvatting