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 2019621900971

Slight
51.5254, -3.2426
2 vehicles 3 casualties
CHRYSLER PT CRUISER VOLKSWAGEN CADDY (4y)
View Details

Accident 2019621900970

Fatal
51.5615, -3.7374
2 vehicles 1 casualty
AUDI A3 KAWASAKI ZR750
View Details

Accident 2019546927819

Slight
51.5223, -1.6677
2 vehicles 1 casualty
Car Car
View Details

Accident 2019546931419

Serious
51.5212, -1.6654
2 vehicles 1 casualty
BMW 3 SERIES AUDI Q5 (4y)
View Details

Accident 2019010193714

Slight
51.4930, -0.4213
2 vehicles 2 casualties
VAUXHALL INSIGNIA NISSAN NOTE
View Details

Accident 2019610039419

Slight
51.6047, -2.9848
3 vehicles 1 casualty
VAUXHALL GRANDLAND (1y) LEXUS CT 200 HONDA JAZZ
View Details

Accident 2019546849719

Slight
51.4959, -1.5827
3 vehicles 1 casualty
VAUXHALL CORSA TOYOTA AVENSIS (2y) MERCEDES CLK CLASS
View Details

Accident 2019430220582

Slight
51.4812, -1.5545
3 vehicles 1 casualty
MERCEDES CLK CLASS VAUXHALL CORSA TOYOTA AVENSIS (2y)
View Details

Accident 2019010194754

Slight
51.4955, -0.4640
3 vehicles 1 casualty
SUZUKI SWIFT FORD FIESTA Car
View Details

Accident 2019621900940

Serious
51.5467, -3.1670
1 vehicle 1 casualty
Honda CB600F
View Details

Accident 2019010192773

Slight
51.4878, -0.3845
3 vehicles 2 casualties
LONDON TAXIS INT. TX4 TESLA MODEL S (4y) VAUXHALL ZAFIRA
View Details

Accident 201963A063719

Slight
51.7075, -4.0570
2 vehicles 2 casualties
VAUXHALL CORSA PEUGEOT BOXER
View Details

Accident 2019610037719

Slight
51.5971, -3.0143
2 vehicles 2 casualties
MERCEDES Model Missing (2y) FORD FIESTA
View Details

Accident 201963A059319

Slight
51.7452, -4.0655
2 vehicles 2 casualties
PEUGEOT 308 BMW 3 SERIES
View Details

Accident 2019521906191

Slight
51.5193, -2.5225
2 vehicles 1 casualty
FORD FIESTA Goods 7.5 tonnes mgw and over
View Details

Accident 2019010192219

Slight
51.4943, -0.4798
3 vehicles 1 casualty
SEAT ARONA RENAULT TRAFIC (4y) BMW 5 SERIES
View Details

Accident 2019546593819

Slight
51.4962, -1.5829
2 vehicles 1 casualty
TOYOTA AVENSIS SKODA OCTAVIA
View Details

Accident 2019430208430

Slight
51.4910, -0.5430
2 vehicles 1 casualty
HYUNDAI IONIQ Car
View Details

Accident 2019010191822

Slight
51.4826, -0.4526
4 vehicles 2 casualties
TOYOTA PRIUS TOYOTA C-HR (1y) VAUXHALL VIVARO (4y) VOLKSWAGEN SHARAN (3y)
View Details

Accident 2019010191450

Fatal
51.4950, -0.4728
2 vehicles 1 casualty
Van / Goods 3.5 tonnes mgw or under Motorcycle over 500cc
View Details