A404(M) M4 J8/9 M4 Junction 8/9

Layout and signage

N/A   M4









    A308(M)


M4









  Windsor
A308(M) Link
London
Slough
Heathrow Airport
M4 Link
The WEST
Reading
M4 Link

Lane configuration

LanesLanesLanesLanes

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

LanesLanesLanesLanes

  • Lane 1 exits and does not return.
  • Lane 2 exits and does not return.