Tire Pavement Noise and Safety Performance: PCC Surface Texture Technical WorkingGroup

摘要

The annoying noise frequencies produced from tire/pavement interaction on some(usually transversely tined) Portland Cement concrete (PCC) pavements have concerned both residents living nearby and motorists traveling over them. A Technical Working Group (TWG) was formed to investigate the problem by conducting a review of previous research and by evaluating the results of ongoing research in the United States. The goal of the TWG was to recommend PCC pavement surface textures that will reduce the annoying noise frequencies without compromising safety. Wisconsin researchers, using narrow band frequency analysis techniques, have recently discovered how to objectively measure and analyze the annoying pure tones that create tire/pavement whining or lower frequency rumbling. Noise-reducing construction methods that work most effectively for new pavements are to randomly space (10 to 40 mm) the transverse tines/grooves, construct longitudinal tines/grooves (either according to AASHTO guidelines or the the Spanish plastic brushing method), or construct an exposed aggregate surface. Existing PCC pavements that produce an annoying noise should be retextured (diamond grooving, diamond or carbide grinding, or shotblasting) or resurfaced (PCC overlay or