Policy Instruments

Variable Message Signs
SummaryFirst principles assesmentEvidence on performancePolicy contributionComplementary instrumentsReferences


Cooper B.R. and Mitchell J (2002) Safety and Effectiveness of the wider use of VMS - Final Report. TRL Report TRL526.

DfT (2003) Traffic Advisory Leaflet 1/03, Vehicle Activated Signs, March 2003, Traffic Advisory Unit, London.

DfT, (unknown). Real Time Information - Sources and Applications.

DfT (2003) Traffic Advisory leaflet ITS 4/03, Parking Guidance and information, by the Traffic Advisory Unit.

TA 83/99 Vol 9 Section 4, Part 6 is a guide to the use of Variable Message Signs for strategic Traffic Management on Trunk roads and Trunk Road Motorways

Bruneau, E (1994) Real Time Traffic Information: VMS and CARMINAT, Traffic Technology International, published by UK & International Press, ISSN 1356-9252.

Silke, E (1994) Get the Message (Variable Message Signs), Surveyor, Pub by Hemming Group Ltd,

Ramo P and Kulmala R (unknown) Effects of Variable Message Signs for slippery road conditions on driving speed and headways, Technical Research Centre of Finland. Found on the science direct website.

Chatterjee, K; Hounsell N.B., Firmin P.E. and Bonsall P.W. Driver Response to Variable Message Sign information in London.Abstract found on the science direct website.

Boyle and Mannering (1998) Impact of traveller advisory systems on driving speed: some new evidence, found on the science direct website.

Messmer, Papageorgiou and Mackenzie (1998) Automatic control of Variable Message Signs in the interurban Scottish Highway Network, found on the science direct website.

ERTICO (1998),

Secretary of State for Scotland (1998), Scottish Transport White Paper, Travel Choices for Scotland, Chapter 4:-Scotlands Transport Action Plan web address:

IHT Institute of Highways and Transportation (1997)

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Text edited at the Institute for Transport Studies, University of Leeds, Leeds LS2 9JT