Traffic incidents
The following traffic incidents have been reported by Highways England, Traffic Scotland, Traffic Wales or Transport for London (TfL) in the last two hours:
There are no current incidents in this location.
M4 Traffic
M4 Roadworks
The following roadworks have been reported by various highways agencies and official transport sources.Click on a roadworks item to view more details on the traffic map.
ROAD WORKSCLEARED @ 03:58Location : westbound exit slip at junction J4 .
Reason : Road repairs.
Status : Currently Active.
Period : from 02:46 on 19 Sep 2018 to 05:00 on 19 Sep 2018.
Lanes Closed : All lanes are closed.
1.97m from Heathrow.
ROAD WORKSCLEARED @ 04:18Location : westbound entry slip at junction J4 .
Reason : Roadworks.
Status : Currently Active.
Period : from 22:15 on 18 Sep 2018 to 05:00 on 19 Sep 2018.
Lanes Closed : All lanes are closed.
2.02m from Heathrow.
ROAD WORKSCLEARED @ 04:48Location : eastbound between junctions J3 (Heathrow)and J1 (London) .
Reason : Roadworks.
Status : Currently Active.
Period : from 22:08 on 18 Sep 2018 to 05:00 on 19 Sep 2018.
Lanes Closed : All lanes are closed.
2.66m from Heathrow.
ROAD WORKSCLEARED @ 04:48Location : eastbound entry slip at junction J10 (Reading) .
Reason : Roadworks.
Status : Currently Active.
Period : from 20:37 on 18 Sep 2018 to 06:30 on 19 Sep 2018.
Lanes Closed : All lanes are closed.
4.77m from Bracknell.
ROAD WORKSCLEARED @ 04:58Location : eastbound at junction J17 (Chippenham) .
Reason : Roadworks.
Status : Currently Active.
Period : from 20:27 on 18 Sep 2018 to 06:00 on 19 Sep 2018.
Lanes Closed : All lanes are closed.
3.79m from Chippenham.
ROAD WORKSCLEARED @ 04:48Location : westbound entry slip at junction J10 (Reading) .
Reason : Roadworks.
Status : Currently Active.
Period : from 20:35 on 18 Sep 2018 to 06:30 on 19 Sep 2018.
Lanes Closed : All lanes are closed.
4.48m from Bracknell.
ROAD WORKSLocation : eastbound between junctions J4and J3 (Heathrow) .
Lane Closures : Lanes 2 and 3 will be closed.
Reason : Emergency barrier repairs are planned.
Status : Pending.
Schedule : From 22:00 on 19 Sep 2018 to 05:00 on 20 Sep 2018.
Lanes Closed : There will be two of three lanes closed.
2.03m from Heathrow.
ROAD WORKSLocation : westbound between junctions J3 (Heathrow)and J4 .
Lane Closures : Lane three will be closed.
Reason : Emergency barrier repairs are planned.
Status : Pending.
Schedule : From 22:00 on 19 Sep 2018 to 05:00 on 20 Sep 2018.
Lanes Closed : There will be one of three lanes closed.
2.03m from Heathrow.
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Elsewhere on the web
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CLEARED @ 03:58Location : westbound exit slip at junction J4 .
Reason : Road repairs.
Status : Currently Active.
Period : from 02:46 on 19 September 2018 to 05:00 on 19 September 2018.
Lanes Closed : All lanes are closed.
Reason : Road repairs.
Status : Currently Active.
Period : from 02:46 on 19 September 2018 to 05:00 on 19 September 2018.
Lanes Closed : All lanes are closed.
1.97m from Heathrow.
CLEARED @ 04:18Location : westbound entry slip at junction J4 .
Reason : Roadworks.
Status : Currently Active.
Period : from 22:15 on 18 September 2018 to 05:00 on 19 September 2018.
Lanes Closed : All lanes are closed.
Reason : Roadworks.
Status : Currently Active.
Period : from 22:15 on 18 September 2018 to 05:00 on 19 September 2018.
Lanes Closed : All lanes are closed.
2.02m from Heathrow.
CLEARED @ 04:48Location : eastbound between junctions J3 (Heathrow)and J1 (London) .
Reason : Roadworks.
Status : Currently Active.
Period : from 22:08 on 18 September 2018 to 05:00 on 19 September 2018.
Lanes Closed : All lanes are closed.
Reason : Roadworks.
Status : Currently Active.
Period : from 22:08 on 18 September 2018 to 05:00 on 19 September 2018.
Lanes Closed : All lanes are closed.
2.66m from Heathrow.
CLEARED @ 04:48Location : eastbound entry slip at junction J10 (Reading) .
Reason : Roadworks.
Status : Currently Active.
Period : from 20:37 on 18 September 2018 to 06:30 on 19 September 2018.
Lanes Closed : All lanes are closed.
Reason : Roadworks.
Status : Currently Active.
Period : from 20:37 on 18 September 2018 to 06:30 on 19 September 2018.
Lanes Closed : All lanes are closed.
4.77m from Bracknell.
CLEARED @ 04:58Location : eastbound at junction J17 (Chippenham) .
Reason : Roadworks.
Status : Currently Active.
Period : from 20:27 on 18 September 2018 to 06:00 on 19 September 2018.
Lanes Closed : All lanes are closed.
Reason : Roadworks.
Status : Currently Active.
Period : from 20:27 on 18 September 2018 to 06:00 on 19 September 2018.
Lanes Closed : All lanes are closed.
3.79m from Chippenham.
CLEARED @ 04:48Location : westbound entry slip at junction J10 (Reading) .
Reason : Roadworks.
Status : Currently Active.
Period : from 20:35 on 18 September 2018 to 06:30 on 19 September 2018.
Lanes Closed : All lanes are closed.
Reason : Roadworks.
Status : Currently Active.
Period : from 20:35 on 18 September 2018 to 06:30 on 19 September 2018.
Lanes Closed : All lanes are closed.
4.48m from Bracknell.
Location : eastbound between junctions J4and J3 (Heathrow) .
Lane Closures : Lanes 2 and 3 will be closed.
Reason : Emergency barrier repairs are planned.
Status : Pending.
Schedule : From 22:00 on 19 September 2018 to 05:00 on 20 September 2018.
Lanes Closed : There will be two of three lanes closed.
Lane Closures : Lanes 2 and 3 will be closed.
Reason : Emergency barrier repairs are planned.
Status : Pending.
Schedule : From 22:00 on 19 September 2018 to 05:00 on 20 September 2018.
Lanes Closed : There will be two of three lanes closed.
2.03m from Heathrow.
Location : westbound between junctions J3 (Heathrow)and J4 .
Lane Closures : Lane three will be closed.
Reason : Emergency barrier repairs are planned.
Status : Pending.
Schedule : From 22:00 on 19 September 2018 to 05:00 on 20 September 2018.
Lanes Closed : There will be one of three lanes closed.
Lane Closures : Lane three will be closed.
Reason : Emergency barrier repairs are planned.
Status : Pending.
Schedule : From 22:00 on 19 September 2018 to 05:00 on 20 September 2018.
Lanes Closed : There will be one of three lanes closed.
2.03m from Heathrow.
CLEARED @ 04:58Location : westbound between junctions J16 (Swindon)and J17 (Chippenham) .
Lane Closures : Lane three is closed.
Reason : Emergency barrier repairs.
Status : Currently Active.
Period : expect disruption until 05:00 on 19 September 2018.
Lanes Closed : There is one of three lanes closed.
Lane Closures : Lane three is closed.
Reason : Emergency barrier repairs.
Status : Currently Active.
Period : expect disruption until 05:00 on 19 September 2018.
Lanes Closed : There is one of three lanes closed.
3.9m from Chippenham.
CLEARED @ 04:58Location : westbound between junctions J17 (Chippenham)and J18 (Bath) .
Lane Closures : Lane three is closed.
Reason : Emergency barrier repairs.
Status : Currently Active.
Period : expect disruption until 05:00 on 19 September 2018.
Lanes Closed : There is one of three lanes closed.
Lane Closures : Lane three is closed.
Reason : Emergency barrier repairs.
Status : Currently Active.
Period : expect disruption until 05:00 on 19 September 2018.
Lanes Closed : There is one of three lanes closed.
8.18m from Chippenham.
CLEARED @ 04:58Location : eastbound between junctions J18 (Bath)and J17 (Chippenham) .
Lane Closures : Lane three is closed.
Reason : Emergency barrier repairs.
Status : Currently Active.
Period : expect disruption until 05:00 on 19 September 2018.
Lanes Closed : There is one of three lanes closed.
Lane Closures : Lane three is closed.
Reason : Emergency barrier repairs.
Status : Currently Active.
Period : expect disruption until 05:00 on 19 September 2018.
Lanes Closed : There is one of three lanes closed.
8.56m from Chippenham.
Location : eastbound between junctions J12 (Reading)and J11 (Basingstoke) .
Lane Closures : Lane one will be closed.
Reason : Road repairs are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:00 and 06:00 from 25 September 2018 to 27 September 2018.
Schedule : From 20:30 on 27 September 2018 to 06:00 on 28 September 2018.
Schedule : From 22:00 on 29 September 2018 to 06:00 on 30 September 2018.
Lanes Closed : There will be one of three lanes closed.
Lane Closures : Lane one will be closed.
Reason : Road repairs are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:00 and 06:00 from 25 September 2018 to 27 September 2018.
Schedule : From 20:30 on 27 September 2018 to 06:00 on 28 September 2018.
Schedule : From 22:00 on 29 September 2018 to 06:00 on 30 September 2018.
Lanes Closed : There will be one of three lanes closed.
2.1m from Reading.
Location : eastbound exit slip at Reading Services.
Reason : Road repairs are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:00 and 06:00 from 25 September 2018 to 27 September 2018.
Schedule : From 20:30 on 27 September 2018 to 06:00 on 28 September 2018.
Schedule : From 22:00 on 29 September 2018 to 06:00 on 30 September 2018.
Lanes Closed : All lanes will be closed.
Reason : Road repairs are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:00 and 06:00 from 25 September 2018 to 27 September 2018.
Schedule : From 20:30 on 27 September 2018 to 06:00 on 28 September 2018.
Schedule : From 22:00 on 29 September 2018 to 06:00 on 30 September 2018.
Lanes Closed : All lanes will be closed.
1.59m from Reading.
Location : eastbound between junctions J13 (Newbury)and J12 (Reading) .
Lane Closures : Lane one will be closed.
Reason : Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 20:30 on 25 September 2018 to 06:00 on 26 September 2018.
Lanes Closed : There will be one of three lanes closed.
Lane Closures : Lane one will be closed.
Reason : Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 20:30 on 25 September 2018 to 06:00 on 26 September 2018.
Lanes Closed : There will be one of three lanes closed.
4.53m from Basildon.
Location : westbound between junctions J11 (Basingstoke)and J13 (Newbury) .
Lane Closures : Lanes 1 and 2 will be closed.
Reason : Roadworks are planned.
Status : Pending.
Schedule : From 20:30 on 25 September 2018 to 06:00 on 26 September 2018.
Lanes Closed : There will be two of three lanes closed.
Lane Closures : Lanes 1 and 2 will be closed.
Reason : Roadworks are planned.
Status : Pending.
Schedule : From 20:30 on 25 September 2018 to 06:00 on 26 September 2018.
Lanes Closed : There will be two of three lanes closed.
2m from Reading.
Location : westbound between junctions J11 (Basingstoke)and J13 (Newbury) .
Lane Closures : Lanes 2 and 3 will be closed.
Reason : Roadworks are planned.
Status : Pending.
Schedule : From 20:30 on 27 September 2018 to 06:00 on 28 September 2018.
Lanes Closed : There will be two of three lanes closed.
Lane Closures : Lanes 2 and 3 will be closed.
Reason : Roadworks are planned.
Status : Pending.
Schedule : From 20:30 on 27 September 2018 to 06:00 on 28 September 2018.
Lanes Closed : There will be two of three lanes closed.
2m from Reading.
Location : westbound entry slip at junction J12 (Reading) .
Reason : Roadworks are planned.
Status : Pending.
Schedule : From 21:00 on 25 September 2018 to 06:00 on 26 September 2018.
Lanes Closed : All lanes will be closed.
Reason : Roadworks are planned.
Status : Pending.
Schedule : From 21:00 on 25 September 2018 to 06:00 on 26 September 2018.
Lanes Closed : All lanes will be closed.
2.9m from Reading.
Location : westbound exit slip at junction J12 (Reading) .
Lane Closures : Lane two will be closed.
Reason : Roadworks are planned.
Status : Pending.
Schedule : From 20:30 on 25 September 2018 to 06:00 on 26 September 2018.
Lanes Closed : There will be one of two lanes closed.
Lane Closures : Lane two will be closed.
Reason : Roadworks are planned.
Status : Pending.
Schedule : From 20:30 on 25 September 2018 to 06:00 on 26 September 2018.
Lanes Closed : There will be one of two lanes closed.
2.6m from Reading.
Location : eastbound entry slip at junction J10 (Reading) .
Lane Closures : Lane one will be closed.
Reason : Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 20:00 and 05:30 from 24 September 2018 to 28 September 2018.
Schedule : Expect disruption everyday between 20:00 and 07:00 from 28 September 2018 to 30 September 2018.
Schedule : Expect disruption everyday between 20:00 and 05:30 from 1 October 2018 to 4 October 2018.
Lanes Closed : All lanes will be closed.
Lane Closures : Lane one will be closed.
Reason : Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 20:00 and 05:30 from 24 September 2018 to 28 September 2018.
Schedule : Expect disruption everyday between 20:00 and 07:00 from 28 September 2018 to 30 September 2018.
Schedule : Expect disruption everyday between 20:00 and 05:30 from 1 October 2018 to 4 October 2018.
Lanes Closed : All lanes will be closed.
4.64m from Bracknell.
Location : eastbound between junctions J7 (Slough)and J6 (Slough) .
Reason : Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 09:00 and 17:00 from 24 September 2018 to 28 September 2018.
Schedule : Expect disruption everyday between 09:00 and 17:00 from 1 October 2018 to 5 October 2018.
Reason : Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 09:00 and 17:00 from 24 September 2018 to 28 September 2018.
Schedule : Expect disruption everyday between 09:00 and 17:00 from 1 October 2018 to 5 October 2018.
1.46m from Eton.
Location : westbound exit slip at junction J10 (Reading) .
Lane Closures : Lanes 1 and 2 will be closed.
Reason : Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 1 October 2018 to 3 October 2018.
Lanes Closed : All lanes will be closed.
Lane Closures : Lanes 1 and 2 will be closed.
Reason : Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 1 October 2018 to 3 October 2018.
Lanes Closed : All lanes will be closed.
4.32m from Bracknell.
Location : westbound entry slip at junction J8 (High Wycombe) .
Reason : Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 1 October 2018 to 3 October 2018.
Lanes Closed : All lanes will be closed.
Reason : Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 1 October 2018 to 3 October 2018.
Lanes Closed : All lanes will be closed.
1.06m from Bray.
Location : westbound between junctions J7 (Slough)and J10 (Reading) .
Reason : Roadworks scheme is planned.
Status : Pending.
Schedule : From 21:00 on 1 October 2018 to 06:00 on 3 October 2018.
Reason : Roadworks scheme is planned.
Status : Pending.
Schedule : From 21:00 on 1 October 2018 to 06:00 on 3 October 2018.
0.67m from Bray.
Location : westbound between junctions J7 (Slough)and J10 (Reading) .
Lane Closures : Lanes 1,2 and 3 will be closed.
Reason : Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 1 October 2018 to 3 October 2018.
Lanes Closed : All lanes will be closed.
Lane Closures : Lanes 1,2 and 3 will be closed.
Reason : Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 1 October 2018 to 3 October 2018.
Lanes Closed : All lanes will be closed.
0.67m from Bray.
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