This article briefly describes computer aids which can give time and manpower savings in the evaluation of traffic noise from roads. The programs are based on recommendations in the Land Compensation Act 1972. The author first outlines the work involved and the advantages of using a computer, and describes the time-table involved. The technique used in the computer aids is based on DOE Circular H8/73, but the relationships between the variables have all been converted to numerical equations which have been found to give similar results to that obtained manually. Details are given of two computer programs which have been used to calculate values of L10 (18 hr) at given locations from given details of traffic flow and calculate the location of the L10 (18 hr) values 65, 68 and 710/b (a) from given details of traffic flows and road cross section respectively. In addition the second program plots noise contours in relation to the centre of the road. A figure gives details of the basic data and control cards and other figures give examples of the parameters used and a typical output. The problem of assessing noise from highways is discussed and an approach is suggested where the maximum "catchment area" is first defined assuming that no buildings are present and then accurate estimates made for specific locations. /TRRL/

  • Corporate Authors:

    IPC Building and Control Journals, Limited

    Dorset House, Stanford Street
    London SE1 9LU,   England 
  • Authors:
    • Jones, I D
  • Publication Date: 1974-9-13

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00096724
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Oct 18 1975 12:00AM