Research Output

Improving Lane Adherence at Signalised Roundabouts with Intelligent Road Studs - A Case Study

  Spiral markings at signalised roundabouts improve traffic flow but can reduce safety due to poor lane discipline. This paper describes an innovative method of improving lane adherence at signalised spiral-marked roundabouts through the use of intelligent road studs.

To achieve this, a before-and-after case study of a major spiral-marked, traffic signal controlled roundabout on the Edinburgh City Bypass was undertaken. The research revealed a substantial reduction in lane transgression at the roundabout and a corresponding reduction in collision rate.

Since its installation, the success of the scheme has been recognised with six national transport awards.

  • Type:

    Conference Paper (unpublished)

  • Date:

    20 September 2017

  • Publication Status:

    Unpublished

  • Library of Congress:

    HE Transportation and Communications

  • Dewey Decimal Classification:

    388 Transportation; ground transportation

  • Funders:

    Edinburgh Napier Funded

Citation

Llewellyn, R. (2017, September). Improving Lane Adherence at Signalised Roundabouts with Intelligent Road Studs - A Case Study. Paper presented at JCT Traffic Signals Symposium

Authors

Keywords

Traffic managment, lane transgression, vehicle collision, intelligent road studs,

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