TRAFFIC IN A SIGNAL-CONTROLLED ROAD NETWORK: AN EXAMPLE OF DIFFERENT SIGNAL TIMINGS INCLUDING DIFFERENT ROUTEING

In a signal-controlled road network which provides two or more routes for some of the traffic passing through it, there is interaction between the signal timings and the routes that the traffic is likely to take. There are well-known techniques for calculating signal timings to minimise average delay when the routeing of traffic is given, and for assigning traffic to routes through the network when the signal timings are given. The authors have combined these techniques to enable the calculation of signal timings which will minimise total travel-time for the routeing of traffic that they are likely to induce, and thus permit mutually-consistent traffic assignment and signal timings to be calculated. For a given network and given origin-destination movements, there will usually be, in principle, many solutions to such calculations, and this paper describes a case in which two distinct solutions have been found for a small realistic network. If such distinct traffic patterns can be induced in practice, by implementing the corresponding signal timings, there will be scope for choosing between them on grounds such as safety and environment as well as delay to traffic.(a) /TRRL/

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  • Corporate Authors:

    Printerhall Limited

    29 Newmart Street
    London W1P 3PE,   England 
  • Authors:
    • ALLSOP, R E
    • CHARLESWORTH, J A
  • Publication Date: 1977-5

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Filing Info

  • Accession Number: 00163981
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Report/Paper Numbers: Analytic
  • Files: ITRD, TRIS
  • Created Date: Dec 27 1977 12:00AM