A1(M) J3 Roehyde Interchange

Layout and signage

St Albans
A414
  A1001

A414
    A1001   St Albans
A414
Potters Bar
A1001

Lane configuration

LanesLanesLanesLanesLanes

  • Lane 1 is gained from the entry sliproad.
  • Lane 2 continues, with option to exit.
  • Lane 3 continues ahead.

LanesLanesLanesLanesLanes

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