Washington State Reports on the Next Generation Concrete Surface

摘要

Reporting on the performance of its first Next Generation Concrete Surface (NGCS), the Washington State Department of Transportation concluded that the pavement is "not a viable option as a noise mitigation strategy - for Washington State." WSDOT took on-board sound intensity (OBSI) measurements on a 1,500-foot test section installed in October 2010 and found that sound levels increased from 100.6 dBA to 104.4 dBA in 30 months.