A41 M25 J20

Route

A41

Junction number

M25 J20

Markerpost

Unknown

Name

Unknown

Terminus

Terminus at end of exit list

Other routes

M25, A4251

Authority

Highways England

Restricted turns

Full access

Services

No services

Layout and signage

N/A   M25










    A4251

M25












  Kings Langley A4251
Stansted Airport
(M1 Link, M11 Link)
M25 Link
London (NW & C)
Watford
A41
Heathrow Airport
(M40 Link, M4 Link)
M25 Link

Lane configuration

LanesLanesLanesLanes

  • Lane 1 continues ahead.
  • Lane 2 continues ahead.

LanesLanesLanesLanes

  • Lane 1 continues, with option to exit.
  • Lane 2 continues, with option to exit.

Other events

  • Signs Traffic signals

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...

Preston Bypass

The very first motorway was eight miles of relief for the Lancashire town of Preston. It goes without saying that there's an interesting story to be told about it.