TRAFFIC SPEEDS ON STEEP GRADIENTS ON RURAL SINGLE- CARRIAGEWAY ROADS

The article describes a study of vehicle speeds on steep sections of two roads having one carriageway. In one case there was no lane for slow-moving large vehicles, and in the other case a third lane was provided. When there was no crawler lane 32 per cent of cars were forced to form queues behind slow-moving heavily laden lorries; average speeds of these cars were about 55 percent lower than those of cars which could travel unhindered on the gradient. These speed restrictions did not occur on carriageways where a third lane was provided. /TRRL/

  • Availability:
  • Corporate Authors:

    Printerhall Limited

    29 Newmart Street
    London W1P 3PE,   England 
  • Authors:
    • Ackrayd, L W
  • Publication Date: 1974-8-9

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00096736
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Sep 30 1975 12:00AM