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CrashStats

A3(M) accidents: crash map and statistics

Police recorded 626 collisions on the A3(M) from 1980 to 2025, with 931 casualties. Of those crashes, 10 were fatal and 91 serious, and 14 people were killed.

In 2025 there were 13 collisions on the A3(M), up 30% from 10 in 2024, with 15 casualties.

Live A3(M) closures, incidents and roadworks are checked every 5 minutes.

Collisions since 1980
626
1,641st highest of 4,923 roads
Casualties
931
1.49 per collision
Fatal collisions
10
14 people killed
Serious collisions
91
105 seriously injured
Collisions in 2025
13
Up 30% on 2024
Casualties in 2025
15
Up 15% on 2024

Crash severity on the A3(M)

On the A3(M), 1.6% of collisions were fatal and 15% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1980 to 2025

  • Fatal101.6%
  • Serious9115%
  • Slight52584%

Where the A3(M) ranks among 4,923 roads

Most collisions
1,641st
Most casualties
1,515th
Most fatal collisions
1,701st
Most serious collisions
2,071st

A3(M) accidents by year

Collisions on the A3(M) peaked at 25 in 2018 and were down to 13 in 2025.

Collisions and casualties on the A3(M), 1980 to 2025

  • Collisions
  • Collisions in 2025: 13
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
20251315
20241013
20231929
20221524
20211424
20201520
20191220
20182537
20171828
20162537
20152030
20141718
20132329
20122432
20112434
20102432
20092132
200845
200723
200611
200511
200422
20032129
20021828
20012534
20002431
19991325
19981521
19971422
19961217
19951224
19942236
19931018
1992917
1991918
19901420
19891524
198867
1987917
1986812
198557
198459
1983614
19821115
19811115
198035

When crashes happen on the A3(M)

Thursday has the most collisions on the A3(M) (98), and 3pm to 6pm is the busiest time of day (154).

Collisions by day of the week

  • Monday91 (15%)
  • Tuesday90 (14%)
  • Wednesday94 (15%)
  • Thursday98 (16%)
  • Friday97 (15%)
  • Saturday74 (12%)
  • Sunday82 (13%)

Collisions by time of day

  • Midnight to 3am24 (3.8%)
  • 3am to 6am18 (2.9%)
  • 6am to 9am102 (16%)
  • 9am to noon88 (14%)
  • Noon to 3pm99 (16%)
  • 3pm to 6pm154 (25%)
  • 6pm to 9pm85 (14%)
  • 9pm to midnight56 (8.9%)

Collisions by month

  • January63 (10%)
  • February59 (9.4%)
  • March42 (6.7%)
  • April32 (5.1%)
  • May48 (7.7%)
  • June39 (6.2%)
  • July46 (7.3%)
  • August69 (11%)
  • September65 (10%)
  • October60 (9.6%)
  • November56 (8.9%)
  • December47 (7.5%)

Light conditions at the time

  • Daylight426 (68%)
  • Dark, no street lighting147 (23%)
  • Dark, street lights lit40 (6.4%)
  • Dark, lighting unknown10 (1.6%)
  • Dark, street lights unlit3 (0.5%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in A3(M) crashes

On the A3(M), 83% of collisions happened where the speed limit was 70 mph and 70% on a dry road surface.

Speed limit at the scene

  • 30 mph15 (2.4%)
  • 40 mph27 (4.3%)
  • 50 mph15 (2.4%)
  • 60 mph49 (7.8%)
  • 70 mph520 (83%)

Weather at the time

  • Fine, no high winds498 (80%)
  • Raining, no high winds72 (12%)
  • Raining with high winds15 (2.4%)
  • Fine with high winds12 (1.9%)
  • Fog or mist6 (1%)
  • Other23 (3.7%)

Road surface

  • Dry437 (70%)
  • Wet or damp171 (27%)
  • Frost or ice7 (1.1%)
  • Snow6 (1%)
  • Flood over 3cm deep5 (0.8%)

Type of road

  • Dual carriageway409 (65%)
  • One way street or slip road103 (16%)
  • Roundabout76 (12%)
  • Single carriageway37 (5.9%)
  • Not recorded1 (0.2%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in A3(M) crashes

Car occupants make up 85% of the people killed or injured on the A3(M), followed by motorcyclists (6.3%).

Casualties by road user

  • Car occupant794 (85%)
  • Motorcyclist59 (6.3%)
  • Van occupant27 (2.9%)
  • Pedestrian17 (1.8%)
  • Minibus occupant10 (1.1%)
  • Goods vehicle occupant (over 3.5 tonnes)9 (1%)
  • Taxi or private hire car occupant8 (0.9%)
  • Other7 (0.8%)

Vehicles involved

  • Car1,077 (84%)
  • Van or goods vehicle up to 3.5 tonnes92 (7.2%)
  • Motorcycle58 (4.5%)
  • Goods vehicle over 3.5 tonnes33 (2.6%)
  • Other vehicle6 (0.5%)
  • Bus or coach5 (0.4%)
  • Taxi or private hire car5 (0.4%)
  • Other7 (0.5%)

Casualties by age

  • 0 to 523 (2.5%)
  • 6 to 1017 (1.8%)
  • 11 to 1515 (1.6%)
  • 16 to 20126 (14%)
  • 21 to 25131 (14%)
  • 26 to 35203 (22%)
  • 36 to 45155 (17%)
  • 46 to 55111 (12%)
  • 56 to 6586 (9.2%)
  • 66 to 7542 (4.5%)
  • Over 7520 (2.1%)
  • Not recorded2 (0.2%)

Drivers, passengers and pedestrians

  • Driver or rider631 (68%)
  • Passenger283 (30%)
  • Pedestrian17 (1.8%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the A3(M)

Map of the 25 most recent crashes on the A3(M)

Use the arrow keys to move the map and the plus and minus keys to zoom.

  • 25 crashes
  • Serious
  • Slight

A3(M) crashes by council area

Collisions on the A3(M) were recorded in 5 council areas. Havant has the most, with 489, followed by East Hampshire (118) and Spelthorne (6).

Collisions on the A3(M) in each area, 1980 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stHavant489727967
2ndEast Hampshire118180021
3rdSpelthorne6812
4thPortsmouth5800
5thCity of London3301

A3(M) crashes by town

Collisions on the A3(M) were recorded in 3 towns and built-up areas, led by Havant (23) and Waterlooville (18).

Recent crashes on the A3(M)

These are the 25 most recent collisions on the A3(M), from 11 December 2023 to 19 December 2025.

Severity