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 199401TC00170

Slight
2 vehicles 1 casualty
AUDI 100 Vehicle
View Details

Accident 199443R102034

Slight
2 vehicles 1 casualty
Vehicle VOLKSWAGEN GOLF
View Details

Accident 199462G010594

Slight
2 vehicles 1 casualty
FORD ESCORT (4y) FORD ORION (2y)
View Details

Accident 199401TC00165

Slight
6 vehicles 2 casualties
VAUXHALL CARLTON (2y) ROVER 200 SERIES (4y) CARBODIES TAXI (4y) CARBODIES TAXI (2y) CARBODIES TAXI VOLVO Model Missing (4y)
View Details

Accident 199443U051034

Slight
1 vehicle 3 casualties
MERCEDES 300 (1y)
View Details

Accident 199462E012394

Slight
2 vehicles 1 casualty
BMW 7 SERIES ROLLS ROYCE MODEL MISSING
View Details

Accident 199454MA00174

Serious
2 vehicles 6 casualties
FORD SIERRA RENAULT CLIO (2y)
View Details

Accident 199443R075034

Serious
4 vehicles 5 casualties
AUSTIN MAESTRO VOLKSWAGEN GOLF (1y) HONDA ACCORD FORD FIESTA
View Details

Accident 199443R090034

Slight
2 vehicles 2 casualties
AUSTIN METRO CITROEN CX
View Details

Accident 199443U079034

Slight
2 vehicles 1 casualty
AUDI 100 VAUXHALL NOVA
View Details

Accident 199401TC00266

Slight
2 vehicles 4 casualties
NISSAN BLUEBIRD VAUXHALL ASTRA
View Details

Accident 199454MB00194

Slight
2 vehicles 2 casualties
AUSTIN MORRIS MINI VOLVO 740
View Details

Accident 199443U045034

Slight
1 vehicle 2 casualties
FORD ESCORT (2y)
View Details

Accident 199454MA00184

Slight
3 vehicles 2 casualties
VOLVO Model Missing VOLKSWAGEN POLO FORD FIESTA
View Details

Accident 199454MB00164

Slight
2 vehicles 2 casualties
PEUGEOT 309 Vehicle
View Details

Accident 199443U033034

Slight
2 vehicles 1 casualty
VOLVO Model Missing HILLMAN IMP
View Details

Accident 199401TC00156

Slight
2 vehicles 1 casualty
VAUXHALL CARLTON Bus or coach (17 or more pass seats)
View Details

Accident 199401TC00154

Serious
2 vehicles 2 casualties
AUSTIN MORRIS MINI FORD Model Missing
View Details

Accident 1994610027694

Serious
2 vehicles 1 casualty
FORD FIESTA LEYLAND Model Missing
View Details

Accident 199454MB00154

Slight
1 vehicle 2 casualties
VOLVO 340
View Details