A1(M) J6 The Clock Interchange

Route

A1 and A1(M)

Junction number

6

Markerpost

39.5

Name

The Clock Interchange

Type

Non-standard interchange

Terminus

Not a terminus

Other routes

None

Authority

Highways England

Restricted turns

Full access

Services

No services

Layout and signage

Welwyn
Welwyn Garden City
A1000
  B656



B197
    B197


A1000

  Welwyn
Welwyn Garden City
A1000

Lane configuration

LanesLanesLanesLanesLanes

  • Lane 1 exits and does not return.
  • Lane 2 continues ahead.
  • Lane 3 continues ahead.

LanesLanesLanesLanes

  • Lane 1 has option to exit and splits to create a new lane.
  • Lane 2 continues ahead.

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...

North Cross Route

The route and the history of the North Cross Route, proposed in the 1960s as the northern side of London's innermost motorway ring road.