The University of Southampton
University of Southampton Institutional Repository

Investigating the limits of the benefits provided by VMS in an urban network

Richards, Andy and McDonald, Mike (2007) Investigating the limits of the benefits provided by VMS in an urban network Transportation Research Record, 2000/2007, pp. 25-34. (doi:10.3141/2000-04).

Record type: Article


A major objective for providing real-time traffic information to drivers is to improve the efficiency of the road network, especially in incident situations. However, the subsequent effects depend on behavioral response, in both interpreting available information and reacting to it. Research focusing on the use of variable message signs (VMSs) was done in the urban network of Southampton, in the United Kingdom, a site chosen because of the innovative large-scale application of an urban VMS system and the availability of traffic data derived from urban traffic controls using the split-cycle offset optimisation technique (SCOOT) and other detectors. Although previous research regarding VMSs located in inter-urban areas such as motorways is well documented, the use of VMSs within urban areas is not widespread. The research analyzed several case studies by using detector data collected during incident scenarios at seven locations to assess driver response to VMS messages in terms of diversion rates. Positive driver responses were measured for all, with diversions ranging from 2% to 30%, although not all were solely attributable to VMS information. No relationships between the severity of VMS message and driver response could be identified. A simulation model was then used to quantify the potential network benefits of traffic information. A main finding was that if the diversionary route had sufficient spare capacity, substantial VMS benefits were potentially attainable, although these benefits were not distributed equally.

Full text not available from this repository.

More information

Published date: 2007


Local EPrints ID: 53235
ISSN: 0361-1981
PURE UUID: 5c39da8e-0af4-475c-94d4-d46760f383ec

Catalogue record

Date deposited: 21 Jul 2008
Last modified: 17 Jul 2017 14:38

Export record



Author: Andy Richards
Author: Mike McDonald

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton:

ePrints Soton supports OAI 2.0 with a base URL of

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.