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M4

M4 road traffic accidents

28,948 collisions recorded

1979 to 2024

The M4 appears in 28,948 collisions in the STATS19 data between 1979 and 2024, involving 45,953 casualties. Of these collisions, 720 were fatal and 4,008 were serious. Recorded collisions in 2024 were down 2% on 2023.

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All Severities Fatal Serious Slight

Severity Breakdown

Fatal: 720
Serious: 4,008
Casualties: 45,953

Fatal: 720
Serious: 4,008
Casualties: 45,953

Collisions by Year

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

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

Areas on the M4

Hillingdon

1,781 recorded here

Wiltshire

1,780 recorded here

Slough

1,767 recorded here

West Berkshire

1,751 recorded here

South Gloucestershire

1,476 recorded here

Newport

1,367 recorded here

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Hillingdon

1,781 recorded here

Wiltshire

1,780 recorded here

Slough

1,767 recorded here

West Berkshire

1,751 recorded here

South Gloucestershire

1,476 recorded here

Newport

1,367 recorded here

Browse all regions

Towns on the M4

Hounslow

564 recorded along the M4

Hillingdon

417 recorded along the M4

Newport (Newport)

348 recorded along the M4

Slough

283 recorded along the M4

Port Talbot

204 recorded along the M4

Cardiff

93 recorded along the M4

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Hounslow

564 recorded along the M4

Hillingdon

417 recorded along the M4

Newport (Newport)

348 recorded along the M4

Slough

283 recorded along the M4

Port Talbot

204 recorded along the M4

Cardiff

93 recorded along the M4

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Accidents on the M4

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Slight

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Recent Accidents

Showing 20 of 720 accidents

M4 road traffic accidents

Filter by Severity

Filter by Severity

Severity Breakdown

Severity Breakdown

Collisions by Year

Collisions by Year

Areas on the M4

Areas on the M4

Hillingdon

Wiltshire

Slough

West Berkshire

South Gloucestershire

Newport

Hillingdon

Wiltshire

Slough

West Berkshire

South Gloucestershire

Newport

Towns on the M4

Towns on the M4

Hounslow

Hillingdon

Newport (Newport)

Slough

Port Talbot

Cardiff

Hounslow

Hillingdon

Newport (Newport)

Slough

Port Talbot

Cardiff

Quick Actions

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Accidents on the M4

Recent Accidents

Accident 198261A032820

Accident 1982010TC0050

Accident 198243F003012

Accident 198152DST2071

Accident 198143C144111

Accident 1981620J04060

Accident 198152DFT1784

Accident 198143F011101

Accident 198101ISKI253

Accident 198143C126091

Accident 198161A320810

Accident 198152DFT1196

Accident 198154MB01381

Accident 198143C078071

Accident 198143C072071

Accident 198154MB01311

Accident 198101G4KJ251

Accident 198161B287810

Accident 198143F028061

Accident 1981620B03870