HOW TRAFFIC FILLS ROADS

This chapter is concerned with relationships between traffic speed, traffic flow and congestion. It is argued that there is no satisfactory theory of traffic flow which begins from atomic data and that the speed/flow relationship depends on traffic composition, such factors as gradients and junctions and on parking. The capacity of road networks is also briefly discussed. It is concluded that in present conditions traffic congestion is self regulating, but that this does not apply in some developing countries, which points to a high long term elasticity of demand for car travel against congestion. This implies that traffic plan should be evaluated not in terms of benefits to travellers but in terms of long-term land use implications. The number of the covering abstract of the textbook is IRRD Abstract No. 212297.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0715363581
• Corporate Authors:

  David and Charles (Holdings) Limited

  South Devon House
  Newton Abott, Devon,   England 
• Authors:
  • Hitchcock, A
• Publication Date: 1974

Language

• English

Media Info

• Features: Figures;
• Pagination: p. 40-45
• Serial:
  • Publication of: Laboratoire Central des Ponts et Chaussees
  • Publisher: Laboratoire Central des Ponts et Chausees (LCPC)

Subject/Index Terms

• TRT Terms: Automobiles; Demand; Developing countries; Highway capacity; Highway grades; Intersections; Networks; Parking; Roads; Slopes; Speed; Traffic congestion; Traffic flow; Traffic speed; Travel demand; Vehicle mix
• Uncontrolled Terms: Congestion; Road networks
• ITRD Terms: 643: Capacity (road, footway); 632: Congestion (traffic); 285: Demand (econ); 2806: Gradient; 455: Junction; 955: Parking; 1053: Road network; 5408: Speed; 671: Traffic flow
• Subject Areas: Highways; Operations and Traffic Management; I71: Traffic Theory;

Filing Info

• Accession Number: 00125594
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• ISBN: 0715363581
• Report/Paper Numbers: Textbook
• Files: ITRD, TRIS
• Created Date: Apr 7 1976 12:00AM