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CrashStats

A111 accidents: crash map and statistics

Police recorded 3,118 collisions on the A111 from 1979 to 2025, with 3,971 casualties. Of those crashes, 38 were fatal and 433 serious, and 41 people were killed.

In 2025 there were 40 collisions on the A111, level with 2024, with 47 casualties.

Live A111 closures, incidents and roadworks are checked every 5 minutes.

Collisions since 1979
3,118
370th highest of 4,923 roads
Casualties
3,971
1.27 per collision
Fatal collisions
38
41 people killed
Serious collisions
433
497 seriously injured
Collisions in 2025
40
Level with 2024
Casualties in 2025
47
Down 6% on 2024

Crash severity on the A111

On the A111, 1.2% of collisions were fatal and 14% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal381.2%
  • Serious43314%
  • Slight2,64785%

Where the A111 ranks among 4,923 roads

Most collisions
370th
Most casualties
388th
Most fatal collisions
552nd
Most serious collisions
496th

A111 accidents by year

Collisions on the A111 peaked at 132 in 1980 and were down to 40 in 2025.

Collisions and casualties on the A111, 1979 to 2025

  • Collisions
  • Collisions in 2025: 40
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
20254047
20244050
20234349
20224452
20214351
20203641
20194456
20183035
20173648
20163545
20154653
20143541
20132939
20124963
20114456
20104866
20094358
20084248
20074151
20064857
20054870
20045673
20034455
20026892
20017795
20007193
19997796
19987289
19977591
199686113
199598133
19947690
1993112138
19927798
19917183
19907789
198991120
198887103
1987103131
198690109
198593117
198481105
198396118
1982117154
1981100136
1980132202
1979127172

When crashes happen on the A111

Friday has the most collisions on the A111 (509), and 3pm to 6pm is the busiest time of day (694).

Collisions by day of the week

  • Monday475 (15%)
  • Tuesday402 (13%)
  • Wednesday439 (14%)
  • Thursday446 (14%)
  • Friday509 (16%)
  • Saturday480 (15%)
  • Sunday367 (12%)

Collisions by time of day

  • Midnight to 3am129 (4.1%)
  • 3am to 6am60 (1.9%)
  • 6am to 9am386 (12%)
  • 9am to noon454 (15%)
  • Noon to 3pm555 (18%)
  • 3pm to 6pm694 (22%)
  • 6pm to 9pm510 (16%)
  • 9pm to midnight330 (11%)

Collisions by month

  • January249 (8%)
  • February223 (7.2%)
  • March267 (8.6%)
  • April248 (8%)
  • May241 (7.7%)
  • June255 (8.2%)
  • July259 (8.3%)
  • August228 (7.3%)
  • September272 (8.7%)
  • October300 (9.6%)
  • November292 (9.4%)
  • December284 (9.1%)

Light conditions at the time

  • Daylight2,184 (70%)
  • Dark, street lights lit890 (29%)
  • Dark, lighting unknown25 (0.8%)
  • Dark, street lights unlit14 (0.4%)
  • Dark, no street lighting5 (0.2%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in A111 crashes

On the A111, 85% of collisions happened where the speed limit was 30 mph and 70% on a dry road surface.

Speed limit at the scene

  • 20 mph31 (1%)
  • 30 mph2,651 (85%)
  • 40 mph257 (8.2%)
  • 50 mph5 (0.2%)
  • 60 mph152 (4.9%)
  • 70 mph20 (0.6%)
  • Not recorded2 (0.1%)

Weather at the time

  • Fine, no high winds2,205 (71%)
  • Raining, no high winds475 (15%)
  • Fine with high winds21 (0.7%)
  • Raining with high winds18 (0.6%)
  • Other362 (12%)
  • Not recorded37 (1.2%)

Road surface

  • Dry2,173 (70%)
  • Wet or damp882 (28%)
  • Frost or ice23 (0.7%)
  • Snow20 (0.6%)
  • Not recorded20 (0.6%)

Type of road

  • Single carriageway2,454 (79%)
  • Roundabout288 (9.2%)
  • Dual carriageway65 (2.1%)
  • One way street or slip road47 (1.5%)
  • Not recorded264 (8.5%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in A111 crashes

Car occupants make up 63% of the people killed or injured on the A111, followed by pedestrians (13%).

Casualties by road user

  • Car occupant2,512 (63%)
  • Pedestrian526 (13%)
  • Motorcyclist446 (11%)
  • Cyclist184 (4.6%)
  • Van occupant131 (3.3%)
  • Bus or coach occupant94 (2.4%)
  • Other77 (1.9%)
  • Not recorded1 (under 0.1%)

Vehicles involved

  • Car4,572 (78%)
  • Motorcycle454 (7.7%)
  • Van or goods vehicle up to 3.5 tonnes350 (5.9%)
  • Pedal cycle189 (3.2%)
  • Bus or coach142 (2.4%)
  • Goods vehicle over 3.5 tonnes115 (2%)
  • Taxi or private hire car38 (0.6%)
  • Other37 (0.6%)

Casualties by age

  • 0 to 564 (1.6%)
  • 6 to 1090 (2.3%)
  • 11 to 15142 (3.6%)
  • 16 to 20603 (15%)
  • 21 to 25521 (13%)
  • 26 to 35755 (19%)
  • 36 to 45531 (13%)
  • 46 to 55410 (10%)
  • 56 to 65278 (7%)
  • 66 to 75190 (4.8%)
  • Over 75161 (4.1%)
  • Not recorded226 (5.7%)

Drivers, passengers and pedestrians

  • Driver or rider2,489 (63%)
  • Passenger956 (24%)
  • Pedestrian526 (13%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the A111

Map of the 25 most recent crashes on the A111

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

  • 25 crashes
  • Serious
  • Slight

A111 crashes by council area

Collisions on the A111 were recorded in 5 council areas. Enfield has the most, with 2,526, followed by Hertsmere (561) and Barnet (16).

Collisions on the A111 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stEnfield2,5263,19826330
2ndHertsmere5617331297
3rdBarnet162102
4thEast Lindsey3300
5thWelwyn Hatfield3501

A111 crashes by town

Collisions on the A111 were recorded in 3 towns and built-up areas, led by Enfield (1,679) and Potters Bar (230).

Recent crashes on the A111

These are the 25 most recent collisions on the A111, from 6 June to 22 December 2025.

Severity