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CrashStats

A100 accidents: crash map and statistics

Police recorded 2,698 collisions on the A100 from 1979 to 2025, with 3,135 casualties. Of those crashes, 11 were fatal and 369 serious, and 11 people were killed.

In 2025 there were 36 collisions on the A100, down 10% from 40 in 2024, with 37 casualties.

Collisions since 1979
2,698
432nd highest of 4,923 roads
Casualties
3,135
1.16 per collision
Fatal collisions
11
11 people killed
Serious collisions
369
392 seriously injured
Collisions in 2025
36
Down 10% on 2024
Casualties in 2025
37
Down 23% on 2024

Crash severity on the A100

On the A100, 0.4% of collisions were fatal and 14% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal110.4%
  • Serious36914%
  • Slight2,31886%

Where the A100 ranks among 4,923 roads

Most collisions
432nd
Most casualties
512th
Most fatal collisions
1,595th
Most serious collisions
586th

A100 accidents by year

Collisions on the A100 peaked at 87 in 1998 and were down to 36 in 2025.

Collisions and casualties on the A100, 1979 to 2025

  • Collisions
  • Collisions in 2025: 36
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
20253637
20244048
20233846
20225462
20214653
20203843
20195460
20186469
20174750
20163339
20154651
20143442
20133942
20125163
20114249
20105162
20092426
20083862
20073745
20063842
20053744
20044552
20034856
20024754
20017893
20007491
19997989
19988797
199784107
19967886
19958092
19948191
19937387
19926982
19916467
19904966
19898290
19886975
19877181
19867988
19857288
19847488
19837078
19826877
19815869
19806780
19796576

When crashes happen on the A100

Friday has the most collisions on the A100 (481), and 3pm to 6pm is the busiest time of day (602).

Collisions by day of the week

  • Monday343 (13%)
  • Tuesday398 (15%)
  • Wednesday421 (16%)
  • Thursday426 (16%)
  • Friday481 (18%)
  • Saturday324 (12%)
  • Sunday305 (11%)

Collisions by time of day

  • Midnight to 3am124 (4.6%)
  • 3am to 6am79 (2.9%)
  • 6am to 9am315 (12%)
  • 9am to noon383 (14%)
  • Noon to 3pm437 (16%)
  • 3pm to 6pm602 (22%)
  • 6pm to 9pm440 (16%)
  • 9pm to midnight318 (12%)

Collisions by month

  • January189 (7%)
  • February189 (7%)
  • March227 (8.4%)
  • April202 (7.5%)
  • May225 (8.3%)
  • June254 (9.4%)
  • July268 (9.9%)
  • August235 (8.7%)
  • September220 (8.2%)
  • October244 (9%)
  • November241 (8.9%)
  • December204 (7.6%)

Light conditions at the time

  • Daylight1,799 (67%)
  • Dark, street lights lit845 (31%)
  • Dark, street lights unlit30 (1.1%)
  • Dark, lighting unknown24 (0.9%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in A100 crashes

On the A100, 86% of collisions happened where the speed limit was 30 mph and 80% on a dry road surface.

Speed limit at the scene

  • 10 mph1 (under 0.1%)
  • 20 mph347 (13%)
  • 30 mph2,321 (86%)
  • 40 mph11 (0.4%)
  • 50 mph2 (0.1%)
  • 60 mph3 (0.1%)
  • 70 mph2 (0.1%)
  • Not recorded11 (0.4%)

Weather at the time

  • Fine, no high winds2,126 (79%)
  • Raining, no high winds312 (12%)
  • Fine with high winds26 (1%)
  • Raining with high winds14 (0.5%)
  • Other177 (6.6%)
  • Not recorded43 (1.6%)

Road surface

  • Dry2,145 (80%)
  • Wet or damp513 (19%)
  • Snow8 (0.3%)
  • Frost or ice5 (0.2%)
  • Other3 (0.1%)
  • Not recorded24 (0.9%)

Type of road

  • Single carriageway1,909 (71%)
  • Dual carriageway472 (17%)
  • One way street or slip road106 (3.9%)
  • Roundabout78 (2.9%)
  • Not recorded133 (4.9%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in A100 crashes

Car occupants make up 30% of the people killed or injured on the A100, followed by pedestrians (23%).

Casualties by road user

  • Car occupant929 (30%)
  • Pedestrian736 (23%)
  • Motorcyclist633 (20%)
  • Cyclist535 (17%)
  • Bus or coach occupant135 (4.3%)
  • Taxi or private hire car occupant69 (2.2%)
  • Other96 (3.1%)
  • Not recorded2 (0.1%)

Vehicles involved

  • Car2,463 (53%)
  • Motorcycle771 (17%)
  • Pedal cycle566 (12%)
  • Van or goods vehicle up to 3.5 tonnes312 (6.7%)
  • Taxi or private hire car181 (3.9%)
  • Bus or coach173 (3.7%)
  • Goods vehicle over 3.5 tonnes116 (2.5%)
  • Other47 (1%)

Casualties by age

  • 0 to 520 (0.6%)
  • 6 to 1055 (1.8%)
  • 11 to 1572 (2.3%)
  • 16 to 20208 (6.6%)
  • 21 to 25489 (16%)
  • 26 to 35953 (30%)
  • 36 to 45548 (17%)
  • 46 to 55326 (10%)
  • 56 to 65168 (5.4%)
  • 66 to 7569 (2.2%)
  • Over 7535 (1.1%)
  • Not recorded192 (6.1%)

Drivers, passengers and pedestrians

  • Driver or rider1,841 (59%)
  • Pedestrian736 (23%)
  • Passenger558 (18%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the A100

Map of the 25 most recent crashes on the A100

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

  • 25 crashes
  • Serious
  • Slight

A100 crashes by council area

Collisions on the A100 were recorded in 5 council areas. Southwark has the most, with 1,632, followed by Tower Hamlets (638) and City of London (414).

Collisions on the A100 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stSouthwark1,6321,8867203
2ndTower Hamlets6387463115
3rdCity of London414488149
4thBarking and Dagenham3300
5thBarnet3301

A100 crashes by town

Collisions on the A100 were recorded in 4 towns and built-up areas, led by Southwark (1,503) and Tower Hamlets (719).

Recent crashes on the A100

These are the 25 most recent collisions on the A100, from 9 May to 18 December 2025.

Severity