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CrashStats

A5109 accidents: crash map and statistics

Police recorded 1,586 collisions on the A5109 from 1979 to 2025, with 1,994 casualties. Of those crashes, 17 were fatal and 208 serious, and 17 people were killed.

In 2025 there were 15 collisions on the A5109, down 29% from 21 in 2024, with 22 casualties.

Collisions since 1979
1,586
714th highest of 4,923 roads
Casualties
1,994
1.26 per collision
Fatal collisions
17
17 people killed
Serious collisions
208
234 seriously injured
Collisions in 2025
15
Down 29% on 2024
Casualties in 2025
22
Down 4% on 2024

Crash severity on the A5109

On the A5109, 1.1% of collisions were fatal and 13% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal171.1%
  • Serious20813%
  • Slight1,36186%

Where the A5109 ranks among 4,923 roads

Most collisions
714th
Most casualties
751st
Most fatal collisions
1,125th
Most serious collisions
1,013th

A5109 accidents by year

Collisions on the A5109 peaked at 58 in 1995 and were down to 15 in 2025.

Collisions and casualties on the A5109, 1979 to 2025

  • Collisions
  • Collisions in 2025: 15
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
20251522
20242123
20231822
20222330
20211821
20201922
20191719
20182528
20172328
20162735
20153137
20142436
20131718
20123035
20113750
20103848
20091926
20083049
20072025
20062833
20053847
20044356
20032935
20023144
20014153
20004554
19994353
19984855
19974959
19964652
19955866
19944756
19933239
19923647
19914049
19903041
19894248
19884657
19874249
19865069
19853845
19844152
19833240
19823145
19814361
19805164
19793451

When crashes happen on the A5109

Friday has the most collisions on the A5109 (260), and 3pm to 6pm is the busiest time of day (369).

Collisions by day of the week

  • Monday227 (14%)
  • Tuesday214 (13%)
  • Wednesday256 (16%)
  • Thursday254 (16%)
  • Friday260 (16%)
  • Saturday206 (13%)
  • Sunday169 (11%)

Collisions by time of day

  • Midnight to 3am55 (3.5%)
  • 3am to 6am26 (1.6%)
  • 6am to 9am215 (14%)
  • 9am to noon217 (14%)
  • Noon to 3pm267 (17%)
  • 3pm to 6pm369 (23%)
  • 6pm to 9pm268 (17%)
  • 9pm to midnight169 (11%)

Collisions by month

  • January126 (7.9%)
  • February128 (8.1%)
  • March112 (7.1%)
  • April129 (8.1%)
  • May132 (8.3%)
  • June129 (8.1%)
  • July128 (8.1%)
  • August133 (8.4%)
  • September133 (8.4%)
  • October139 (8.8%)
  • November151 (9.5%)
  • December146 (9.2%)

Light conditions at the time

  • Daylight1,121 (71%)
  • Dark, street lights lit429 (27%)
  • Dark, lighting unknown24 (1.5%)
  • Dark, no street lighting7 (0.4%)
  • Dark, street lights unlit5 (0.3%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in A5109 crashes

On the A5109, 98% of collisions happened where the speed limit was 30 mph and 71% on a dry road surface.

Speed limit at the scene

  • 20 mph12 (0.8%)
  • 30 mph1,552 (98%)
  • 40 mph13 (0.8%)
  • 50 mph4 (0.3%)
  • 60 mph3 (0.2%)
  • 70 mph2 (0.1%)

Weather at the time

  • Fine, no high winds1,184 (75%)
  • Raining, no high winds227 (14%)
  • Snowing, no high winds11 (0.7%)
  • Fine with high winds9 (0.6%)
  • Other129 (8.1%)
  • Not recorded26 (1.6%)

Road surface

  • Dry1,125 (71%)
  • Wet or damp414 (26%)
  • Frost or ice18 (1.1%)
  • Snow15 (0.9%)
  • Not recorded14 (0.9%)

Type of road

  • Single carriageway1,336 (84%)
  • Roundabout77 (4.9%)
  • Dual carriageway52 (3.3%)
  • One way street or slip road11 (0.7%)
  • Not recorded110 (6.9%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in A5109 crashes

Car occupants make up 64% of the people killed or injured on the A5109, followed by pedestrians (14%).

Casualties by road user

  • Car occupant1,284 (64%)
  • Pedestrian277 (14%)
  • Motorcyclist236 (12%)
  • Cyclist89 (4.5%)
  • Van occupant51 (2.6%)
  • Bus or coach occupant40 (2%)
  • Other16 (0.8%)
  • Not recorded1 (0.1%)

Vehicles involved

  • Car2,305 (80%)
  • Motorcycle238 (8.2%)
  • Van or goods vehicle up to 3.5 tonnes146 (5%)
  • Pedal cycle92 (3.2%)
  • Bus or coach49 (1.7%)
  • Goods vehicle over 3.5 tonnes24 (0.8%)
  • Other vehicle21 (0.7%)
  • Other20 (0.7%)

Casualties by age

  • 0 to 528 (1.4%)
  • 6 to 1046 (2.3%)
  • 11 to 15119 (6%)
  • 16 to 20261 (13%)
  • 21 to 25264 (13%)
  • 26 to 35390 (20%)
  • 36 to 45305 (15%)
  • 46 to 55191 (9.6%)
  • 56 to 65132 (6.6%)
  • 66 to 7598 (4.9%)
  • Over 7550 (2.5%)
  • Not recorded110 (5.5%)

Drivers, passengers and pedestrians

  • Driver or rider1,296 (65%)
  • Passenger421 (21%)
  • Pedestrian277 (14%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the A5109

Map of the 25 most recent crashes on the A5109

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

  • 25 crashes
  • Serious
  • Slight

A5109 crashes by council area

Of the 1,586 collisions on the A5109, 1,583 were in Barnet.

Collisions on the A5109 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stBarnet1,5831,99017208

A5109 crashes by town

Of the 1,586 collisions on the A5109, 1,310 were in the built-up area of Barnet.

Recent crashes on the A5109

These are the 25 most recent collisions on the A5109, from 28 July 2024 to 23 December 2025.

Severity