Prepare for heavy congestion as rush hour traffic hits the M1 sliproad leading into and outside of Watford.

Traffic light failure on A4088 Dudden Hill Lane at Burnley Road. Approach with care.

Delays on A502 Heath Street around Holly Hill (Hampstead Station). Affecting traffic coming from Swiss Cottage.

Very slow traffic on A312 The Parkway Northbound before A4180 Ruislip Road / Yeading Lane (White Hart Roundabout). Travel time is five minutes.

Very slow traffic on A312 Church Road and Mandeville Road from A4180 Ruislip Road (White Hart Roundabout) to Target Roundabout and then Northolt station. Travel time is seven minutes.

Slow traffic on A112 Sewardstone Road at A110 Lea Valley Road. Congestion to Ponders End. In the roadworks area. Temporary traffic lights are in operation.

Very slow traffic on A406 North Circular Road Westbound around A105 Green Lanes (Clockhouse Interchange). Travel time is 12 minutes.

Usual very slow traffic on A110 Nags Head Road And Lea Valley Road from Ponders End to Chingford. Travel time is five minutes.

Very slow traffic on A13 Ripple Road outbound from A112 Prince Regent Lane (Canning Town) to A1153 Lodge Avenue (Barking).