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CrashStats

A311 accidents: crash map and statistics

Police recorded 998 collisions on the A311 from 1979 to 2025, with 1,167 casualties. Of those crashes, 5 were fatal and 171 serious, and 5 people were killed.

In 2025 there were 8 collisions on the A311, up 14% from 7 in 2024, with 9 casualties.

Collisions since 1979
998
1,096th highest of 4,923 roads
Casualties
1,167
1.17 per collision
Fatal collisions
5
5 people killed
Serious collisions
171
179 seriously injured
Collisions in 2025
8
Up 14% on 2024
Casualties in 2025
9
Up 13% on 2024

Crash severity on the A311

On the A311, 0.5% of collisions were fatal and 17% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal50.5%
  • Serious17117%
  • Slight82282%

Where the A311 ranks among 4,923 roads

Most collisions
1,096th
Most casualties
1,243rd
Most fatal collisions
2,545th
Most serious collisions
1,222nd

A311 accidents by year

Collisions on the A311 peaked at 43 in 1985 and were down to 8 in 2025.

Collisions and casualties on the A311, 1979 to 2025

  • Collisions
  • Collisions in 2025: 8
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
202589
202478
20231112
202277
202199
202088
20191314
20181315
20171015
20161214
20151313
20141214
20131213
20121111
20111717
20101417
20091314
20081717
2007911
20061314
20051824
20042124
20031826
20021621
20011923
20003033
19991922
19982127
19973137
19963038
19951922
19942932
19933540
19922328
19912325
19903134
19892734
19883033
19872934
19863640
19854353
19842832
19833947
19824146
19812937
19804251
19794252

When crashes happen on the A311

Friday has the most collisions on the A311 (172), and 3pm to 6pm is the busiest time of day (230).

Collisions by day of the week

  • Monday156 (16%)
  • Tuesday149 (15%)
  • Wednesday142 (14%)
  • Thursday157 (16%)
  • Friday172 (17%)
  • Saturday126 (13%)
  • Sunday96 (9.6%)

Collisions by time of day

  • Midnight to 3am40 (4%)
  • 3am to 6am9 (0.9%)
  • 6am to 9am129 (13%)
  • 9am to noon150 (15%)
  • Noon to 3pm175 (18%)
  • 3pm to 6pm230 (23%)
  • 6pm to 9pm159 (16%)
  • 9pm to midnight106 (11%)

Collisions by month

  • January75 (7.5%)
  • February66 (6.6%)
  • March86 (8.6%)
  • April73 (7.3%)
  • May77 (7.7%)
  • June96 (9.6%)
  • July100 (10%)
  • August77 (7.7%)
  • September73 (7.3%)
  • October100 (10%)
  • November92 (9.2%)
  • December83 (8.3%)

Light conditions at the time

  • Daylight708 (71%)
  • Dark, street lights lit269 (27%)
  • Dark, lighting unknown12 (1.2%)
  • Dark, street lights unlit8 (0.8%)
  • Dark, no street lighting1 (0.1%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in A311 crashes

On the A311, 93% of collisions happened where the speed limit was 30 mph and 77% on a dry road surface.

Speed limit at the scene

  • 20 mph52 (5.2%)
  • 30 mph926 (93%)
  • 40 mph18 (1.8%)
  • 60 mph2 (0.2%)

Weather at the time

  • Fine, no high winds724 (73%)
  • Raining, no high winds123 (12%)
  • Fine with high winds7 (0.7%)
  • Raining with high winds6 (0.6%)
  • Other115 (12%)
  • Not recorded23 (2.3%)

Road surface

  • Dry769 (77%)
  • Wet or damp216 (22%)
  • Frost or ice6 (0.6%)
  • Snow4 (0.4%)
  • Flood over 3cm deep1 (0.1%)
  • Not recorded2 (0.2%)

Type of road

  • Single carriageway876 (88%)
  • Dual carriageway31 (3.1%)
  • One way street or slip road7 (0.7%)
  • Roundabout2 (0.2%)
  • Not recorded82 (8.2%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in A311 crashes

Car occupants make up 37% of the people killed or injured on the A311, followed by motorcyclists (20%).

Casualties by road user

  • Car occupant431 (37%)
  • Motorcyclist231 (20%)
  • Pedestrian215 (18%)
  • Cyclist190 (16%)
  • Bus or coach occupant57 (4.9%)
  • Van occupant29 (2.5%)
  • Other vehicle occupant6 (0.5%)
  • Other8 (0.7%)

Vehicles involved

  • Car1,159 (64%)
  • Motorcycle241 (13%)
  • Pedal cycle190 (11%)
  • Van or goods vehicle up to 3.5 tonnes87 (4.8%)
  • Bus or coach86 (4.8%)
  • Goods vehicle over 3.5 tonnes23 (1.3%)
  • Taxi or private hire car7 (0.4%)
  • Other8 (0.4%)

Casualties by age

  • 0 to 512 (1%)
  • 6 to 1029 (2.5%)
  • 11 to 1571 (6.1%)
  • 16 to 20197 (17%)
  • 21 to 25131 (11%)
  • 26 to 35207 (18%)
  • 36 to 45165 (14%)
  • 46 to 55109 (9.3%)
  • 56 to 6557 (4.9%)
  • 66 to 7560 (5.1%)
  • Over 7551 (4.4%)
  • Not recorded78 (6.7%)

Drivers, passengers and pedestrians

  • Driver or rider730 (63%)
  • Passenger222 (19%)
  • Pedestrian215 (18%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the A311

Map of the 25 most recent crashes on the A311

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

  • 25 crashes
  • Serious
  • Slight

A311 crashes by council area

Of the 998 collisions on the A311, 991 were in Richmond upon Thames.

Collisions on the A311 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stRichmond upon Thames9911,1575168

A311 crashes by town

Of the 998 collisions on the A311, 825 were in the built-up area of Richmond upon Thames.

Recent crashes on the A311

These are the 25 most recent collisions on the A311, from 15 March 2023 to 8 December 2025.

Severity