A303

Route

A303

Junction number

None

Markerpost

148.8

Name

Unknown

Type

Lane configuration change

Terminus

Last before break point

Other routes

None

Authority

Highways England

Restricted turns

Full access

Services

No services

Layout and signage

       

Lane configuration

LanesLanesLanes

  • Lane 1 splits to create a new lane.

LanesLanesLanesLanes

  • Lane 1 continues ahead.
  • Lane 2 terminates.

In this section

What's new

Go west! New Ringways pages are here

A new set of Ringways pages are now online, looking at unbuilt motorways and road projects west of London.

No smoke without ire

London's Ultra Low Emission Zone has just expanded to cover the whole inner city, and across the UK, other cities are implementing their own Clean Air Zones. Is this the future?

Devon help us

Road signs are colour coded for different types of road, but in Devon there are more colours than anywhere else. What do Devon's colourful signs mean?

Have you seen...

Mickleham Bends

Once it was one of the UK's most dangerous roads — just what is so special about a bit of dual carriageway in Surrey?