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.

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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

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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

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Accidents on the M4

Fatal
Serious
Slight
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Recent Accidents

Showing 20 of 29,200 accidents

Accident 200943R229099

Slight
51.4899, -0.5792
2 vehicles 2 casualties
MERCEDES S CLASS Car
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Accident 2009610064309

Slight
51.6024, -3.0022
2 vehicles 1 casualty
Goods over 3.5t. and under 7.5t MAZDA 3
View Details

Accident 2009610068109

Serious
51.5520, -3.0650
1 vehicle 1 casualty
Motorcycle 125cc and under
View Details

Accident 200943W192099

Slight
51.4626, -1.2438
1 vehicle 1 casualty
FORD FIESTA
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Accident 2009620193678

Slight
51.5159, -3.4782
4 vehicles 2 casualties
ROVER 25 VAUXHALL VECTRA (2y) VOLVO S80 TOYOTA AVENSIS
View Details

Accident 2009610069909

Slight
51.5674, -3.0353
2 vehicles 1 casualty
MERCEDES Model Missing PEUGEOT 207 (1y)
View Details

Accident 2009620194201

Serious
51.6763, -3.9966
1 vehicle 1 casualty
PEUGEOT 206
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Accident 2009610070109

Slight
51.5969, -3.0152
2 vehicles 1 casualty
DAF TRUCKS FT 95XF SEAT LEON
View Details

Accident 200943R164099

Slight
51.4929, -0.5347
3 vehicles 2 casualties
PORSCHE BOXSTER (4y) VAUXHALL CORSA MAZDA 6
View Details

Accident 2009620194111

Slight
51.6494, -3.8482
2 vehicles 1 casualty
CHEVROLET KALOS (4y) Car
View Details

Accident 2009620193710

Serious
51.5160, -3.5008
1 vehicle 2 casualties
Car
View Details

Accident 200943R178099

Slight
51.4415, -0.8302
1 vehicle 1 casualty
BMW 5 SERIES (2y)
View Details

Accident 2009620194000

Slight
51.5067, -3.3106
2 vehicles 1 casualty
ROVER 25 (4y) HONDA Model Missing
View Details

Accident 200943W195099

Slight
51.4115, -0.9673
2 vehicles 1 casualty
VOLKSWAGEN GOLF RENAULT MEGANE
View Details

Accident 2009620193530

Slight
51.6614, -3.8775
2 vehicles 1 casualty
Goods 7.5 tonnes mgw and over RENAULT MEGANE
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Accident 2009610062809

Serious
51.6018, -2.9766
2 vehicles 1 casualty
HONDA ACCORD VOLVO Model Missing
View Details

Accident 2009620193711

Slight
51.5990, -3.7890
1 vehicle 1 casualty
MERCEDES C CLASS
View Details

Accident 2009620193981

Slight
51.5102, -3.2983
5 vehicles 2 casualties
NISSAN D22 AUDI A3 (4y) HYUNDAI COUPE MAZDA 3 FORD MONDEO (1y)
View Details

Accident 2009620193876

Slight
51.5423, -3.1335
3 vehicles 2 casualties
RENAULT Model Missing VAUXHALL CORSA VAUXHALL COMBO
View Details

Accident 200943W098099

Slight
51.4707, -1.5250
2 vehicles 1 casualty
Goods 7.5 tonnes mgw and over Car
View Details