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CrashStats

A410 accidents: crash map and statistics

Police recorded 2,489 collisions on the A410 from 1979 to 2025, with 3,031 casualties. Of those crashes, 22 were fatal and 363 serious, and 23 people were killed.

In 2025 there were 28 collisions on the A410, up 12% from 25 in 2024, with 30 casualties.

Collisions since 1979
2,489
472nd highest of 4,923 roads
Casualties
3,031
1.22 per collision
Fatal collisions
22
23 people killed
Serious collisions
363
390 seriously injured
Collisions in 2025
28
Up 12% on 2024
Casualties in 2025
30
Level with 2024

Crash severity on the A410

On the A410, 0.9% of collisions were fatal and 15% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal220.9%
  • Serious36315%
  • Slight2,10485%

Where the A410 ranks among 4,923 roads

Most collisions
472nd
Most casualties
533rd
Most fatal collisions
902nd
Most serious collisions
597th

A410 accidents by year

Collisions on the A410 peaked at 85 in 1979 and were down to 28 in 2025.

Collisions and casualties on the A410, 1979 to 2025

  • Collisions
  • Collisions in 2025: 28
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
20252830
20242530
20231520
20223336
20213139
20203337
20193133
20183237
20173337
20164255
20154763
20142832
20133643
20123852
20113035
20104555
20094961
20084052
20072740
20064049
20055669
20044553
20034854
20025466
20016580
20007199
19996377
19987789
19976476
19966479
19956888
19945867
19936080
19926379
19915162
19908092
19896677
19886991
19877991
19867790
19856167
19846884
19837184
198282104
198180100
19808196
197985101

When crashes happen on the A410

Friday has the most collisions on the A410 (433), and 3pm to 6pm is the busiest time of day (585).

Collisions by day of the week

  • Monday313 (13%)
  • Tuesday362 (15%)
  • Wednesday389 (16%)
  • Thursday353 (14%)
  • Friday433 (17%)
  • Saturday366 (15%)
  • Sunday273 (11%)

Collisions by time of day

  • Midnight to 3am76 (3.1%)
  • 3am to 6am34 (1.4%)
  • 6am to 9am313 (13%)
  • 9am to noon389 (16%)
  • Noon to 3pm397 (16%)
  • 3pm to 6pm585 (24%)
  • 6pm to 9pm425 (17%)
  • 9pm to midnight270 (11%)

Collisions by month

  • January210 (8.4%)
  • February179 (7.2%)
  • March214 (8.6%)
  • April186 (7.5%)
  • May217 (8.7%)
  • June197 (7.9%)
  • July219 (8.8%)
  • August178 (7.2%)
  • September233 (9.4%)
  • October242 (9.7%)
  • November229 (9.2%)
  • December185 (7.4%)

Light conditions at the time

  • Daylight1,751 (70%)
  • Dark, street lights lit716 (29%)
  • Dark, lighting unknown16 (0.6%)
  • Dark, street lights unlit6 (0.2%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in A410 crashes

On the A410, 92% of collisions happened where the speed limit was 30 mph and 73% on a dry road surface.

Speed limit at the scene

  • 20 mph20 (0.8%)
  • 30 mph2,286 (92%)
  • 40 mph171 (6.9%)
  • 50 mph8 (0.3%)
  • 60 mph3 (0.1%)
  • 70 mph1 (under 0.1%)

Weather at the time

  • Fine, no high winds1,831 (74%)
  • Raining, no high winds350 (14%)
  • Snowing, no high winds12 (0.5%)
  • Fine with high winds11 (0.4%)
  • Other241 (9.7%)
  • Not recorded44 (1.8%)

Road surface

  • Dry1,820 (73%)
  • Wet or damp631 (25%)
  • Frost or ice15 (0.6%)
  • Snow11 (0.4%)
  • Other2 (0.1%)
  • Not recorded10 (0.4%)

Type of road

  • Single carriageway1,739 (70%)
  • Roundabout310 (12%)
  • Dual carriageway233 (9.4%)
  • One way street or slip road31 (1.2%)
  • Not recorded176 (7.1%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in A410 crashes

Car occupants make up 57% of the people killed or injured on the A410, followed by pedestrians (18%).

Casualties by road user

  • Car occupant1,725 (57%)
  • Pedestrian536 (18%)
  • Motorcyclist374 (12%)
  • Cyclist200 (6.6%)
  • Bus or coach occupant93 (3.1%)
  • Van occupant73 (2.4%)
  • Other29 (1%)
  • Not recorded1 (under 0.1%)

Vehicles involved

  • Car3,406 (77%)
  • Motorcycle392 (8.9%)
  • Van or goods vehicle up to 3.5 tonnes207 (4.7%)
  • Pedal cycle202 (4.6%)
  • Bus or coach116 (2.6%)
  • Goods vehicle over 3.5 tonnes53 (1.2%)
  • Taxi or private hire car25 (0.6%)
  • Other21 (0.5%)

Casualties by age

  • 0 to 538 (1.3%)
  • 6 to 1053 (1.7%)
  • 11 to 15152 (5%)
  • 16 to 20438 (14%)
  • 21 to 25375 (12%)
  • 26 to 35567 (19%)
  • 36 to 45392 (13%)
  • 46 to 55302 (10%)
  • 56 to 65221 (7.3%)
  • 66 to 75167 (5.5%)
  • Over 75153 (5%)
  • Not recorded173 (5.7%)

Drivers, passengers and pedestrians

  • Driver or rider1,877 (62%)
  • Passenger618 (20%)
  • Pedestrian536 (18%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the A410

Map of the 25 most recent crashes on the A410

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

  • 25 crashes
  • Serious
  • Slight

A410 crashes by council area

Collisions on the A410 were recorded in 2 council areas. Harrow has the most, with 2,360, followed by Barnet (123).

Collisions on the A410 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stHarrow2,3602,86522352
2ndBarnet123156011

A410 crashes by town

Collisions on the A410 were recorded in 2 towns and built-up areas, led by Harrow (2,119) and Barnet (87).

Recent crashes on the A410

These are the 25 most recent collisions on the A410, from 3 February to 6 December 2025.

Severity