M4 Traffic Report

This page shows a list of the current incidents and traffic warnings on the M4. Click on the 'more' link under each one to view further information.

M4 eastbound between J11 and J10 | Eastbound | Road Works
Road Works, No Delay, posted 2025-08-01 20:20:29 | more

M4 eastbound within J10 before A329(M) westbound access | Eastbound | Road Works
Road Works, No Delay, posted 2025-08-01 20:20:29 | more

M4 westbound between J21 and J22 | Westbound | Road Works
Road Works, No Delay, posted 2025-07-31 15:40:21 | more

M4 westbound within J22 | Westbound | Road Works
Road Works, No Delay, posted 2025-07-31 15:40:21 | more

M4 eastbound between J19 and J18 | Eastbound | Road Works
Road Works, No Delay, posted 2025-07-31 15:40:21 | more

M4 eastbound between J16 and J15 | Eastbound | Road Works
Road Works, No Delay, posted 2025-07-31 15:40:21 | more

M4 eastbound within J20 | Eastbound | Road Works
Road Works, No Delay, posted 2025-07-31 15:40:21 | more

M4 eastbound between J20 and J19 | Eastbound | Road Works
Road Works, No Delay, posted 2025-07-31 15:40:21 | more

M4 eastbound between J19 and J18 | Eastbound | Road Works
Road Works, No Delay, posted 2025-07-31 15:40:21 | more

M4 westbound within J18 | Westbound | Road Works
Road Works, No Delay, posted 2025-07-31 15:40:21 | more

M4 westbound between J17 and J18 | Westbound | Road Works
Road Works, No Delay, posted 2025-07-31 15:40:21 | more

M4 eastbound within J17 | Eastbound | Road Works
Road Works, No Delay, posted 2025-07-31 15:40:21 | more

M4 westbound between J21 and J22 | Westbound | Road Works
Road Works, No Delay, posted 2025-07-31 15:40:21 | more

M4 eastbound between J22 and J21 | Eastbound | Road Works
Road Works, Severe Disruption - in excess of 3 hours delay or road closure, posted 2025-07-31 15:40:21 | more

M4 eastbound between J12 and J11 | Eastbound | Road Works
Road Works, No Delay, posted 2025-07-31 15:40:21 | more

M4 eastbound at the Reading services slip road between J12 and J11 | Eastbound | Road Works
Road Works, Severe Disruption - in excess of 3 hours delay or road closure, posted 2025-07-31 15:40:21 | more

M4 eastbound within J20 | Eastbound | Road Works
Road Works, Severe Disruption - in excess of 3 hours delay or road closure, posted 2025-08-02 02:59:28 | more

M4 eastbound between J21 and J20 | Eastbound | Road Works
Road Works, No Delay, posted 2025-08-02 05:30:47 | more

M4 eastbound within J20 | Eastbound | Road Works
Road Works, No Delay, posted 2025-07-31 20:03:49 | more

link road from M25 J15 clockwise to M4 J4B westbound | Westbound | Road Works
Road Works, Severe Disruption - in excess of 3 hours delay or road closure, posted 2025-07-31 15:40:21 | more

M4 westbound within J4B | Westbound | Road Works
Road Works, No Delay, posted 2025-07-31 15:40:21 | more

M4 westbound between J4B and J5 | Westbound | Road Works
Road Works, No Delay, posted 2025-07-31 15:40:21 | more

M4 eastbound between J15 and J14 | Eastbound | Road Works
Road Works, No Delay, posted 2025-07-31 15:40:21 | more

M4 eastbound within J20 | Eastbound | Road Works
Road Works, No Delay, posted 2025-07-31 15:40:21 | more

M4 eastbound within J19 | Eastbound | Road Works
Road Works, No Delay, posted 2025-07-31 15:40:21 | more

M4 westbound between J19 and J20 | Westbound | Road Works
Road Works, No Delay, posted 2025-07-31 15:40:21 | more

M4 eastbound between J19 and J18 | Eastbound | Road Works
Road Works, No Delay, posted 2025-07-31 15:40:21 | more

M4 eastbound within J18 | Eastbound | Road Works
Road Works, No Delay, posted 2025-07-31 15:40:21 | more

M4 J11 eastbound exit | Eastbound | Road Works
Road Works, Severe Disruption - in excess of 3 hours delay or road closure, posted 2025-07-31 15:40:21 | more

M4 eastbound between J12 and J11 | Eastbound | Road Works
Road Works, No Delay, posted 2025-07-31 15:40:21 | more

M4 eastbound within J11 | Eastbound | Road Works
Road Works, No Delay, posted 2025-07-31 15:40:21 | more

connector at A408/M4 J4/M4 spur (Heathrow) | Westbound | Road Works
Road Works, Severe Disruption - in excess of 3 hours delay or road closure, posted 2025-07-31 15:40:21 | more

M4 eastbound within J4B | Eastbound | Road Works
Road Works, No Delay, posted 2025-07-31 15:40:21 | more

M4 eastbound between J4B and J4 | Eastbound | Road Works
Road Works, No Delay, posted 2025-07-31 15:40:21 | more

M4 J18 eastbound exit | Eastbound | Road Works
Road Works, Severe Disruption - in excess of 3 hours delay or road closure, posted 2025-07-31 15:40:21 | more

M4 eastbound within J18 | Eastbound | Road Works
Road Works, Severe Disruption - in excess of 3 hours delay or road closure, posted 2025-07-31 15:40:21 | more

M4 eastbound within J19 | Eastbound | Road Works
Road Works, No Delay, posted 2025-07-31 15:40:21 | more

M4 J8 eastbound access | Eastbound | Road Works
Road Works, No Delay, posted 2025-07-31 15:40:21 | more

M4 eastbound between J10 and J8 | Eastbound | Road Works
Road Works, No Delay, posted 2025-07-31 15:40:21 | more

M4 eastbound within J8 | Eastbound | Road Works
Road Works, No Delay, posted 2025-07-31 15:40:21 | more

M4 eastbound between J8 and J7 | Eastbound | Road Works
Road Works, No Delay, posted 2025-07-31 15:40:21 | more

M4 J13 eastbound access | Eastbound | Road Works
Road Works, Severe Disruption - in excess of 3 hours delay or road closure, posted 2025-08-02 05:41:54 | more

M4 eastbound within J12 | Eastbound | Road Works
Road Works, Severe Disruption - in excess of 3 hours delay or road closure, posted 2025-08-02 03:53:40 | more

M4 J12 eastbound exit | Eastbound | Road Works
Road Works, Severe Disruption - in excess of 3 hours delay or road closure, posted 2025-08-02 05:41:55 | more

M4 eastbound between J13 and J12 | Eastbound | Road Works
Road Works, No Delay, posted 2025-07-31 15:40:21 | more

M4 eastbound between J18 and J17 | Eastbound | Road Works
Road Works, No Delay, posted 2025-07-31 15:40:21 | more

M4 eastbound between J5 and J4B | Eastbound | Road Works
Road Works, No Delay, posted 2025-08-02 05:46:03 | more

M4 westbound between J4 and J4B | Westbound | Road Works
Road Works, No Delay, posted 2025-08-02 05:46:04 | more

M4 eastbound between J15 and J14 | Eastbound | Road Works
Road Works, No Delay, posted 2025-08-02 05:58:35 | more

M4 J5 eastbound exit | Eastbound | Road Works
Road Works, No Delay, posted 2025-08-02 06:10:02 | more

link road from M5 J15 southbound to M4 J20 eastbound | Eastbound | Road Works
Road Works, Severe Disruption - in excess of 3 hours delay or road closure, posted 2025-08-02 04:09:49 | more

link road from M5 J15 southbound to M4 J20 eastbound | Eastbound | Road Works
Road Works, Severe Disruption - in excess of 3 hours delay or road closure, posted 2025-08-02 04:07:43 | more

link road from M5 J15 southbound to M4 J20 eastbound | Eastbound | Road Works
Road Works, No Delay, posted 2025-07-31 15:40:21 | more

M4 J12 westbound exit | Westbound | Road Works
Road Works, Severe Disruption - in excess of 3 hours delay or road closure, posted 2025-07-31 15:40:21 | more

link road from A329(M) westbound to M4 J10 westbound | Westbound | Road Works
Road Works, Severe Disruption - in excess of 3 hours delay or road closure, posted 2025-07-31 15:40:21 | more

M4 westbound between J10 and J11 | Westbound | Road Works
Road Works, No Delay, posted 2025-07-31 15:40:21 | more

M4 westbound within J10 after A329(M) eastbound access | Westbound | Road Works
Road Works, No Delay, posted 2025-07-31 15:40:21 | more

link road from A329(M) eastbound to M4 J10 westbound | Westbound | Road Works
Road Works, Severe Disruption - in excess of 3 hours delay or road closure, posted 2025-07-31 15:40:21 | more

M4 westbound between J10 and J11 | Westbound | Road Works
Road Works, No Delay, posted 2025-08-02 06:34:08 | more

M4 westbound within J11 | Westbound | Road Works
Road Works, No Delay, posted 2025-08-02 06:34:07 | more

M4 westbound between J11 and J12 | Westbound | Road Works
Road Works, No Delay, posted 2025-08-02 06:34:08 | more

M4 westbound between J11 and J12 | Westbound | Road Works
Road Works, No Delay, posted 2025-07-31 15:40:21 | more

M4 westbound within J12 | Westbound | Road Works
Road Works, No Delay, posted 2025-07-31 15:40:21 | more

M4 eastbound between J12 and J11 | Eastbound | Road Works
Road Works, No Delay, posted 2025-08-02 06:34:07 | more

M4 eastbound within J11 | Eastbound | Road Works
Road Works, No Delay, posted 2025-08-02 06:36:27 | more

M4 eastbound within J12 | Eastbound | Road Works
Road Works, No Delay, posted 2025-07-31 15:40:21 | more

M4 eastbound between J12 and J11 | Eastbound | Road Works
Road Works, No Delay, posted 2025-07-31 15:40:21 | more

M4 eastbound within J11 | Eastbound | Road Works
Road Works, No Delay, posted 2025-07-31 15:40:21 | more

M4 eastbound between J11 and J10 | Eastbound | Road Works
Road Works, No Delay, posted 2025-07-31 15:40:21 | more

M4 eastbound within J11 | Eastbound | Road Works
Road Works, No Delay, posted 2025-07-31 15:40:21 | more

M4 eastbound between J11 and J10 | Eastbound | Road Works
Road Works, No Delay, posted 2025-07-31 15:40:21 | more

M4 eastbound between J12 and J11 | Eastbound | Road Works
Road Works, No Delay, posted 2025-07-31 15:40:21 | more

M4 eastbound within J11 | Eastbound | Road Works
Road Works, No Delay, posted 2025-07-31 15:40:21 | more

M4 eastbound between J11 and J10 | Eastbound | Road Works
Road Works, No Delay, posted 2025-07-31 15:40:21 | more

M4 westbound within J12 | Westbound | Road Works
Road Works, No Delay, posted 2025-07-31 15:40:21 | more

M4 eastbound between J17 and J16 | Eastbound | Road Works
Road Works, No Delay, posted 2025-07-31 15:40:21 | more

M4 eastbound within J12 | Eastbound | Road Works
Road Works, No Delay, posted 2025-07-28 20:02:09 | more

M4 J6 westbound exit | Westbound | Road Works
Road Works, Severe Disruption - in excess of 3 hours delay or road closure, posted 2025-07-31 15:40:21 | more

M4 westbound between J17 and J18 | Westbound | Road Works
Road Works, No Delay, posted 2025-08-02 05:04:04 | more

M4 eastbound between J18 and J17 | Eastbound | Road Works
Road Works, No Delay, posted 2025-08-02 05:04:05 | more