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CrashStats

A306 accidents: crash map and statistics

Police recorded 2,578 collisions on the A306 from 1979 to 2025, with 3,091 casualties. Of those crashes, 21 were fatal and 444 serious, and 22 people were killed.

In 2025 there were 18 collisions on the A306, up 6% from 17 in 2024, with 18 casualties.

Collisions since 1979
2,578
455th highest of 4,923 roads
Casualties
3,091
1.20 per collision
Fatal collisions
21
22 people killed
Serious collisions
444
506 seriously injured
Collisions in 2025
18
Up 6% on 2024
Casualties in 2025
18
Down 5% on 2024

Crash severity on the A306

On the A306, 0.8% of collisions were fatal and 17% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal210.8%
  • Serious44417%
  • Slight2,11382%

Where the A306 ranks among 4,923 roads

Most collisions
455th
Most casualties
523rd
Most fatal collisions
938th
Most serious collisions
483rd

A306 accidents by year

Collisions on the A306 peaked at 97 in 1980 and were down to 18 in 2025.

Collisions and casualties on the A306, 1979 to 2025

  • Collisions
  • Collisions in 2025: 18
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
20251818
20241719
20232224
20223033
20211919
20201820
20192334
20185357
20173339
20165064
20154349
20144451
20133542
20123741
20114657
20103340
20094144
20083749
20073842
20063445
20056174
20045565
20035871
20025273
20017589
20005364
19995059
19985159
19975660
19967690
19958096
19947196
199389111
199284101
199180101
19906076
19896690
19885459
19877184
19866993
19858198
198488104
19837686
19827586
198185102
198097116
197994101

When crashes happen on the A306

Friday has the most collisions on the A306 (458), and 3pm to 6pm is the busiest time of day (533).

Collisions by day of the week

  • Monday349 (14%)
  • Tuesday397 (15%)
  • Wednesday389 (15%)
  • Thursday388 (15%)
  • Friday458 (18%)
  • Saturday323 (13%)
  • Sunday274 (11%)

Collisions by time of day

  • Midnight to 3am118 (4.6%)
  • 3am to 6am40 (1.6%)
  • 6am to 9am336 (13%)
  • 9am to noon404 (16%)
  • Noon to 3pm408 (16%)
  • 3pm to 6pm533 (21%)
  • 6pm to 9pm464 (18%)
  • 9pm to midnight275 (11%)

Collisions by month

  • January206 (8%)
  • February188 (7.3%)
  • March212 (8.2%)
  • April183 (7.1%)
  • May242 (9.4%)
  • June209 (8.1%)
  • July209 (8.1%)
  • August187 (7.3%)
  • September224 (8.7%)
  • October264 (10%)
  • November244 (9.5%)
  • December210 (8.1%)

Light conditions at the time

  • Daylight1,735 (67%)
  • Dark, street lights lit796 (31%)
  • Dark, lighting unknown25 (1%)
  • Dark, street lights unlit19 (0.7%)
  • Dark, no street lighting3 (0.1%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in A306 crashes

On the A306, 96% of collisions happened where the speed limit was 30 mph and 75% on a dry road surface.

Speed limit at the scene

  • 20 mph59 (2.3%)
  • 30 mph2,467 (96%)
  • 40 mph47 (1.8%)
  • 50 mph2 (0.1%)
  • 60 mph2 (0.1%)
  • 70 mph1 (under 0.1%)

Weather at the time

  • Fine, no high winds1,915 (74%)
  • Raining, no high winds326 (13%)
  • Fine with high winds24 (0.9%)
  • Raining with high winds18 (0.7%)
  • Other263 (10%)
  • Not recorded32 (1.2%)

Road surface

  • Dry1,923 (75%)
  • Wet or damp620 (24%)
  • Frost or ice13 (0.5%)
  • Snow9 (0.3%)
  • Other4 (0.2%)
  • Not recorded9 (0.3%)

Type of road

  • Single carriageway1,964 (76%)
  • Dual carriageway383 (15%)
  • One way street or slip road50 (1.9%)
  • Roundabout33 (1.3%)
  • Not recorded148 (5.7%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in A306 crashes

Car occupants make up 41% of the people killed or injured on the A306, followed by motorcyclists (22%).

Casualties by road user

  • Car occupant1,252 (41%)
  • Motorcyclist684 (22%)
  • Pedestrian481 (16%)
  • Cyclist324 (10%)
  • Bus or coach occupant179 (5.8%)
  • Van occupant86 (2.8%)
  • Other84 (2.7%)
  • Not recorded1 (under 0.1%)

Vehicles involved

  • Car2,870 (62%)
  • Motorcycle720 (16%)
  • Pedal cycle333 (7.2%)
  • Bus or coach255 (5.5%)
  • Van or goods vehicle up to 3.5 tonnes225 (4.9%)
  • Taxi or private hire car84 (1.8%)
  • Goods vehicle over 3.5 tonnes64 (1.4%)
  • Other44 (1%)

Casualties by age

  • 0 to 544 (1.4%)
  • 6 to 1064 (2.1%)
  • 11 to 15123 (4%)
  • 16 to 20318 (10%)
  • 21 to 25427 (14%)
  • 26 to 35775 (25%)
  • 36 to 45452 (15%)
  • 46 to 55286 (9.3%)
  • 56 to 65181 (5.9%)
  • 66 to 75123 (4%)
  • Over 75104 (3.4%)
  • Not recorded194 (6.3%)

Drivers, passengers and pedestrians

  • Driver or rider1,913 (62%)
  • Passenger697 (23%)
  • Pedestrian481 (16%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the A306

Map of the 25 most recent crashes on the A306

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

  • 25 crashes
  • Serious
  • Slight

A306 crashes by council area

Collisions on the A306 were recorded in 3 council areas. Richmond upon Thames has the most, with 1,087, followed by Wandsworth (1,061) and Hammersmith and Fulham (422).

Collisions on the A306 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stRichmond upon Thames1,0871,32111205
2ndWandsworth1,0611,2698179
3rdHammersmith and Fulham422491258

A306 crashes by town

Collisions on the A306 were recorded in 3 towns and built-up areas, led by Wandsworth (900) and Richmond upon Thames (656).

Recent crashes on the A306

These are the 25 most recent collisions on the A306, from 3 November 2024 to 13 December 2025.

Severity