Crash View

M4 road traffic accidents

29,200 collisions recorded
1979 to 2025

The M4 appears in 29,200 collisions in the STATS19 data between 1979 and 2025, involving 46,338 casualties. Of these collisions, 724 were fatal and 4,059 were serious. Recorded collisions in 2025 were up 17% on 2024.

Is the M4 closed right now? See today's accidents, overnight closures and roadworks.

Live M4 closures today
All Severities Fatal Serious Slight
Fatal
724
Serious
4,059
Casualties
46,338
2025 252
2024 216
2023 220
2022 226
2021 238
2020 178
2019 362
2018 355
2017 400
2016 479
2015 525
2014 574
2013 534
2012 493
2011 530
2010 583
2009 538
2008 662
2007 780
2006 844
2005 772
2004 867
2003 876
2002 827
2001 855
2000 864
1999 852
1998 860
1997 835
1996 782
1995 812
1994 761
1993 759
1992 739
1991 730
1990 888
1989 835
1988 763
1987 691
1986 749
1985 639
1984 640
1983 606
1982 553
1981 564
1980 552
1979 540

Hillingdon

1,815 recorded here

Wiltshire

1,801 recorded here

West Berkshire

1,791 recorded here

Slough

1,787 recorded here

South Gloucestershire

1,501 recorded here

Newport

1,382 recorded here

Browse all regions

Hounslow

571 recorded along the M4

Hillingdon

428 recorded along the M4

Newport (Newport)

353 recorded along the M4

Slough

288 recorded along the M4

Port Talbot

205 recorded along the M4

Cardiff

93 recorded along the M4

Browse all towns
Browse All Roads Search All Accidents

Accidents on the M4

Fatal
Serious
Slight
Click markers for details

Move Insights

Thinking of moving to this area?

Check flood risk, planning history, EPC ratings and more with a Move Insights property report.

Flood risk assessment
Planning history
EPC ratings & more
Get a property report

Recent Accidents

Showing 20 of 29,200 accidents

Accident 199201TC00297

Slight
2 vehicles 1 casualty
VOLKSWAGEN POLO VOLKSWAGEN PASSAT
View Details

Accident 199243N066032

Slight
1 vehicle 2 casualties
FORD SIERRA
View Details

Accident 199243R060032

Slight
4 vehicles 2 casualties
VOLVO 343 COLT GALANT FORD TRANSIT IVECO-FORD Model Missing (2y)
View Details

Accident 1992620G00730

Serious
2 vehicles 1 casualty
Vehicle Vehicle
View Details

Accident 19925292E9199

Fatal
1 vehicle 5 casualties
FORD CORTINA
View Details

Accident 199201TC00136

Serious
3 vehicles 3 casualties
FORD GRANADA (4y) Vehicle NISSAN E24 (4y)
View Details

Accident 199201TC00165

Slight
3 vehicles 2 casualties
CITROEN AX (3y) FORD ESCORT (4y) Vehicle
View Details

Accident 199201ID00011

Slight
3 vehicles 1 casualty
FORD ESCORT FORD SIERRA (1y) Vehicle
View Details

Accident 199243U018032

Slight
1 vehicle 1 casualty
ROVER RANGE ROVER
View Details

Accident 199201TC00156

Slight
2 vehicles 1 casualty
CARBODIES TAXI Vehicle
View Details

Accident 1992620L00880

Slight
2 vehicles 1 casualty
Vehicle Vehicle
View Details

Accident 199201TC00241

Slight
3 vehicles 2 casualties
PEUGEOT 405 (3y) VAUXHALL CAVALIER VAUXHALL CAVALIER (1y)
View Details

Accident 19925292E9173

Slight
1 vehicle 1 casualty
FORD ESCORT
View Details

Accident 1992620F00670

Serious
3 vehicles 2 casualties
Van / Goods 3.5 tonnes mgw or under Vehicle Vehicle
View Details

Accident 199243R022032

Slight
3 vehicles 3 casualties
FORD ORION (2y) NISSAN MICRA (3y) FORD TRANSIT (1y)
View Details

Accident 199201TC00125

Serious
3 vehicles 1 casualty
ROVER 800 SERIES (1y) FORD ESCORT TOYOTA CARINA (2y)
View Details

Accident 1992620L00830

Slight
2 vehicles 1 casualty
Vehicle Vehicle
View Details

Accident 199243R014032

Slight
2 vehicles 2 casualties
Vehicle BMW 3 SERIES (3y)
View Details

Accident 1992620L00770

Slight
6 vehicles 1 casualty
Vehicle Vehicle Vehicle Vehicle Vehicle Vehicle
View Details

Accident 199261B081920

Slight
2 vehicles 1 casualty
VAUXHALL CAVALIER VOLVO 740 (4y)
View Details