LINSIG was first released in 1985, and later became one of the most popular software packages in the UK for designing traffic signals. In 1993, a completely new version, LINSIG II or LINSIG for DOS, was written, and it is now in use at over 250 UK sites. This article describes the development of a further version, LINSIG for Windows, which began in 1998. LINSIG for Windows solved the following problems in LINSIG for DOS: difficulty in printing, lack of graphics, unusual file format, poor extensibility, and lack of standard user interface. In addition, it has several new features, including greatly expanded data capability, continuous validation, a new high-speed signal optimiser, and a new system of phase delays. It consists of three sub-models, linked by a user interface layer: traffic model, controller model, and optimiser. Traffic through the junction is modelled using the traffic theory of Webster and Cobbe. The controller model represents a traffic signal controller and the constraints that it places on the junction signal settings. The stage length optimiser adjusts the stage lengths in the controller model to maximise the junction's practical reserve capacity. The user interface uses 14 'views' of the data to enable users to edit the LINSIG model, to which new features can easily be added.

  • Availability:
  • Corporate Authors:

    Hemming Group, Limited

    32 Vauxhall Bridge Road
    London,   United Kingdom  SW1V 2SS
  • Authors:
    • Moore, P
  • Publication Date: 2000-5


  • English

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Filing Info

  • Accession Number: 00795165
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD, ATRI
  • Created Date: Jul 7 2000 12:00AM