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Variable Message Signs (Electronic Message Signs)

Electronic information signs are now a familiar sight across England's motorway and trunk road network.

These signs provide advance warning to drivers of emergencies, incidents and road management.  They are aimed at improving safety and minimising the impact of congestion.

We use the term Variable Message Signs (VMS) to describe these signs.

This section of our Knowledge Centre explains how these signs work and contains more detail on their uses.

The main purpose of VMS on the Agency’s network is to communicate information and advice to drivers about emergencies, incidents and network management, aimed at improving safety and minimising the impact of congestion.

Messages displayed on VMS are limited to those that help drivers complete their journey safely and efficiently. VMS cannot be used for advertising or any other unnecessary information. 

There are a number of types of VMS in use on the Agency’s network and they provide the capability to display a wide range of warnings, messages and other traffic information.

Use these pages to find out more information on what is being done to increase their use; how messages are approved; future developments; and where to go for further details.

Displaying Travel and Delay Times on Variable Message Signs

We are now providing a new national information service to drivers - travel and delay times on Variable Message Signs (VMS). This service is being rolled out on the majority of motorways and some major A-roads across England. The new messages let drivers know about the road conditions ahead, therefore allowing them to make informed decisions during their journeys.

See more information about Displaying Travel and Delay Times on Variable Message Signs.

Additionally you can find out about our recent 'Keep Left Campaign'.