Urban Congestion Reduction Using Variable Message Signs



Urban Congestion Reduction Using Variable Message Signs

Authors

RICHARDS A, McDONALD M, LYONS G, University of Southampton, UK

Description

Variable Message Signs (VMS) are becoming increasingly attractive as a means of providing useful traffic information to drivers. When appropriately sited, such signs can affect a large proportion of road users and, particularly in 'incident' conditions, h

Abstract

Variable Message Signs (VMS) are becoming increasingly attractive as a means of providing useful traffic information to drivers. When appropriately sited, such signs can affect a large proportion of road users and, particularly in 'incident' conditions, have a potentially substantial effect on traffic distribution within a network. This is recognlsed in Southampton, for example, where new VMS are being installed at key urban locations as part of the ROMANSE and ENTRANCE projects.

This paper will discuss a number of factors which are likely to influence the effectiveness of VMS; these include the proportion of drivers reacting to the VMS message, timely implementation of the VMS message, the 'normal' level of congestion within the network and whether pre-trip information (via mediums such as the radio or television) is also available.

Publisher

Association for European Transport