A12 J12 Marylands Interchange

Layout and signage

Billericay
A1023 (A129)
Mountnessing
Ingatestone
B1002
  B1002     A1023
(A128)
(A129)
  Brentwood
A1023
Kelvedon Hatch
(A128)

Lane configuration

LanesLanesLanesLanes

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

LanesLanesLanesLanesLanes

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