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 1997610139697

Slight
4 vehicles 4 casualties
MERCEDES Model Missing FORD MONDEO (2y) PEUGEOT 306 (2y) Vehicle
View Details

Accident 1997610139797

Slight
5 vehicles 1 casualty
Vehicle TOYOTA COROLLA (3y) VAUXHALL CAVALIER (4y) VAUXHALL CAVALIER VAUXHALL CAVALIER (1y)
View Details

Accident 1997610139997

Slight
8 vehicles 1 casualty
RENAULT LAGUNA (1y) FORD ORION Vehicle ROVER 600 SERIES Vehicle BMW 3 SERIES Vehicle FORD MONDEO (2y)
View Details

Accident 199762D038297

Slight
3 vehicles 2 casualties
HYUNDAI X2 ROVER 800 SERIES Vehicle
View Details

Accident 199754MA01017

Slight
2 vehicles 1 casualty
IVECO-FORD Model Missing (4y) Van / Goods 3.5 tonnes mgw or under
View Details

Accident 1997520097522

Slight
2 vehicles 1 casualty
VOLVO 240 Vehicle
View Details

Accident 199701TC00630

Serious
1 vehicle 1 casualty
VAUXHALL CAVALIER (4y)
View Details

Accident 199762B062797

Slight
2 vehicles 2 casualties
FORD FIESTA DENNIS Model Missing
View Details

Accident 199762D035897

Slight
2 vehicles 1 casualty
Vehicle ROVER 200 SERIES
View Details

Accident 199762E028297

Slight
2 vehicles 1 casualty
VOLVO 340 VOLKSWAGEN GOLF
View Details

Accident 199743R020117

Slight
1 vehicle 1 casualty
RENAULT 19
View Details

Accident 199743R019117

Slight
2 vehicles 1 casualty
Vehicle PEUGEOT 309
View Details

Accident 199762D035697

Slight
5 vehicles 1 casualty
NISSAN MAXIMA MERCEDES 200 (4y) HONDA PRELUDE (3y) FORD ESCORT MERCEDES Model Missing
View Details

Accident 199743W008117

Slight
2 vehicles 1 casualty
RENAULT 9 Vehicle
View Details

Accident 199701TC00627

Slight
3 vehicles 1 casualty
CARBODIES TAXI CARBODIES TAXI (3y) TOYOTA CARINA
View Details

Accident 199743W012117

Slight
2 vehicles 1 casualty
PEUGEOT 405 FORD ESCORT
View Details

Accident 199762G035297

Slight
2 vehicles 1 casualty
FORD SIERRA FORD FIESTA
View Details

Accident 199743W005117

Slight
2 vehicles 1 casualty
ROVER 400 SERIES VOLVO 760
View Details

Accident 199701TC00619

Serious
1 vehicle 1 casualty
MAZDA 323
View Details

Accident 199701TC00618

Slight
1 vehicle 2 casualties
MERCEDES 300
View Details