Evaluation of Long-Term Pavement Performance and Noise Characteristics of the Next Generation Concrete Surface

Project Details
STATE

WA

SOURCE

NC2

START DATE

04/01/11

END DATE

01/01/14

RESEARCHERS

WSDOT

SPONSORS

WSDOT

KEYWORDS

concrete pavement, diamond grinding, Next Generation Concrete Surface, on board sound intensity measurements, quieter pavements

Project description

This report documents the performance of the first Next Generation Concrete Surface (NGCS) built by the Washington State Department of Transportation (WSDOT). On-board sound intensity (OBSI) measurements increased from initial levels of 100.6 dBA to 104.4 dBA in 30 months. The increase in noise level was attributed to the loss of aggregate and general roughening of the concrete surface by studded tires.
TOP