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CrashStats

A305 accidents: crash map and statistics

Police recorded 3,536 collisions on the A305 from 1979 to 2025, with 4,028 casualties. Of those crashes, 38 were fatal and 560 serious, and 38 people were killed.

In 2025 there were 37 collisions on the A305, up 3% from 36 in 2024, with 43 casualties.

Collisions since 1979
3,536
319th highest of 4,923 roads
Casualties
4,028
1.14 per collision
Fatal collisions
38
38 people killed
Serious collisions
560
592 seriously injured
Collisions in 2025
37
Up 3% on 2024
Casualties in 2025
43
Up 2% on 2024

Crash severity on the A305

On the A305, 1.1% of collisions were fatal and 16% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal381.1%
  • Serious56016%
  • Slight2,93883%

Where the A305 ranks among 4,923 roads

Most collisions
319th
Most casualties
380th
Most fatal collisions
552nd
Most serious collisions
365th

A305 accidents by year

Collisions on the A305 peaked at 168 in 1979 and were down to 37 in 2025.

Collisions and casualties on the A305, 1979 to 2025

  • Collisions
  • Collisions in 2025: 37
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
20253743
20243642
20232727
20223844
20213536
20202527
20194453
20183942
20174448
20164851
20154043
20144954
20134548
20124448
20115158
20104753
20093142
20085459
20074650
20064349
20055663
20046882
20037282
20027687
20017689
20006468
19997892
19987282
199784102
19967896
19959099
199497104
199398119
19928086
19918593
1990122139
1989114136
1988104110
1987114131
1986129146
1985111123
1984125162
1983131148
1982150182
1981142159
1980129142
1979168189

When crashes happen on the A305

Friday has the most collisions on the A305 (606), and 3pm to 6pm is the busiest time of day (865).

Collisions by day of the week

  • Monday473 (13%)
  • Tuesday526 (15%)
  • Wednesday538 (15%)
  • Thursday527 (15%)
  • Friday606 (17%)
  • Saturday537 (15%)
  • Sunday329 (9.3%)

Collisions by time of day

  • Midnight to 3am132 (3.7%)
  • 3am to 6am30 (0.8%)
  • 6am to 9am423 (12%)
  • 9am to noon546 (15%)
  • Noon to 3pm608 (17%)
  • 3pm to 6pm865 (24%)
  • 6pm to 9pm570 (16%)
  • 9pm to midnight362 (10%)

Collisions by month

  • January274 (7.7%)
  • February269 (7.6%)
  • March320 (9%)
  • April272 (7.7%)
  • May282 (8%)
  • June303 (8.6%)
  • July307 (8.7%)
  • August260 (7.4%)
  • September291 (8.2%)
  • October313 (8.9%)
  • November357 (10%)
  • December288 (8.1%)

Light conditions at the time

  • Daylight2,525 (71%)
  • Dark, street lights lit945 (27%)
  • Dark, lighting unknown38 (1.1%)
  • Dark, street lights unlit23 (0.7%)
  • Dark, no street lighting5 (0.1%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in A305 crashes

On the A305, 92% of collisions happened where the speed limit was 30 mph and 74% on a dry road surface.

Speed limit at the scene

  • 20 mph155 (4.4%)
  • 30 mph3,249 (92%)
  • 40 mph57 (1.6%)
  • 50 mph15 (0.4%)
  • 60 mph17 (0.5%)
  • 70 mph43 (1.2%)

Weather at the time

  • Fine, no high winds2,514 (71%)
  • Raining, no high winds465 (13%)
  • Fine with high winds25 (0.7%)
  • Raining with high winds16 (0.5%)
  • Other438 (12%)
  • Not recorded78 (2.2%)

Road surface

  • Dry2,614 (74%)
  • Wet or damp866 (24%)
  • Frost or ice28 (0.8%)
  • Snow11 (0.3%)
  • Flood over 3cm deep2 (0.1%)
  • Not recorded15 (0.4%)

Type of road

  • Single carriageway2,676 (76%)
  • Dual carriageway373 (11%)
  • One way street or slip road117 (3.3%)
  • Roundabout110 (3.1%)
  • Not recorded260 (7.4%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in A305 crashes

Car occupants make up 30% of the people killed or injured on the A305, followed by pedestrians (21%).

Casualties by road user

  • Car occupant1,212 (30%)
  • Pedestrian857 (21%)
  • Motorcyclist778 (19%)
  • Cyclist753 (19%)
  • Bus or coach occupant318 (7.9%)
  • Van occupant57 (1.4%)
  • Other50 (1.2%)
  • Not recorded3 (0.1%)

Vehicles involved

  • Car3,607 (59%)
  • Motorcycle847 (14%)
  • Pedal cycle778 (13%)
  • Bus or coach419 (6.9%)
  • Van or goods vehicle up to 3.5 tonnes270 (4.4%)
  • Goods vehicle over 3.5 tonnes70 (1.1%)
  • Taxi or private hire car54 (0.9%)
  • Other66 (1.1%)

Casualties by age

  • 0 to 548 (1.2%)
  • 6 to 1064 (1.6%)
  • 11 to 15233 (5.8%)
  • 16 to 20611 (15%)
  • 21 to 25527 (13%)
  • 26 to 35812 (20%)
  • 36 to 45508 (13%)
  • 46 to 55329 (8.2%)
  • 56 to 65248 (6.2%)
  • 66 to 75199 (4.9%)
  • Over 75176 (4.4%)
  • Not recorded273 (6.8%)

Drivers, passengers and pedestrians

  • Driver or rider2,451 (61%)
  • Pedestrian857 (21%)
  • Passenger720 (18%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the A305

Map of the 25 most recent crashes on the A305

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

  • 25 crashes
  • Serious
  • Slight

A305 crashes by council area

Collisions on the A305 were recorded in 4 council areas. Richmond upon Thames has the most, with 3,314, followed by Hounslow (204) and Spelthorne (5).

Collisions on the A305 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stRichmond upon Thames3,3143,76129539
2ndHounslow204241821
3rdSpelthorne5600
4thWandsworth3400

A305 crashes by town

Collisions on the A305 were recorded in 3 towns and built-up areas, led by Richmond upon Thames (2,876) and Hounslow (98).

Recent crashes on the A305

These are the 25 most recent collisions on the A305, from 26 April to 22 December 2025.

Severity