Road traffic noise prediction based on speed-flow diagram

The method enables calculation of the annual average sound level of the road traffic noise, when the characteristics of the speed-flow diagram are available: the average speed of freely cruising vehicles, capacity of the traffic flow, traffic speed at the traffic flow capacity, and the slope of the decreasing traffic speed versus traffic flow. Under any conditions, traffic congestion reduces the annual average sound level. The final conclusion is that strong traffic congestion cannot be ignored in noise prediction. (A) Reprinted with permission from Elsevier.


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  • Accession Number: 01336529
  • Record Type: Publication
  • Source Agency: TRL
  • Files: ITRD
  • Created Date: Apr 15 2011 3:52PM