The Forth Estuary Driver Information and Control System (FEDICS) in Central Scotland uses variable message signs (VMS) on points of the strategic motorway and trunk road network where drivers face a choice of routes. This paper provides an evaluation of its initial operation, concentrating not on technology but on the effects it has had on people, particularly drivers, but also those involved in operating the system. The paper also considers the economic benefits of FEDICS measured through detailed evaluation of each of the signs and compares these with predictions used in the system's feasibility study. A specific example of how drivers react to VMS during major roadworks is given. For the covering abstract see IRRD 880251.


  • English

Media Info

  • Features: References;
  • Pagination: p. 28-32

Subject/Index Terms

Filing Info

  • Accession Number: 00725350
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD
  • Created Date: Sep 26 1996 12:00AM