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CrashStats

A5135 accidents: crash map and statistics

Police recorded 663 collisions on the A5135 from 1979 to 2025, with 805 casualties. Of those crashes, 4 were fatal and 96 serious, and 5 people were killed.

In 2025 there were 8 collisions on the A5135, up 33% from 6 in 2024, with 13 casualties.

Collisions since 1979
663
1,569th highest of 4,923 roads
Casualties
805
1.21 per collision
Fatal collisions
4
5 people killed
Serious collisions
96
99 seriously injured
Collisions in 2025
8
Up 33% on 2024
Casualties in 2025
13
Up 117% on 2024

Crash severity on the A5135

On the A5135, 0.6% of collisions were fatal and 14% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal40.6%
  • Serious9614%
  • Slight56385%

Where the A5135 ranks among 4,923 roads

Most collisions
1,569th
Most casualties
1,716th
Most fatal collisions
2,815th
Most serious collisions
1,982nd

A5135 accidents by year

Collisions on the A5135 peaked at 42 in 1979 and were down to 8 in 2025.

Collisions and casualties on the A5135, 1979 to 2025

  • Collisions
  • Collisions in 2025: 8
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
2025813
202466
202344
202234
202156
202023
201946
201833
201733
201667
201555
201422
201367
201237
201169
2010710
20091011
200834
20071011
20061114
2005916
200489
2003810
200268
20011416
2000811
1999913
19981112
19971419
19961218
199578
19941313
19931113
19921622
19912429
19902023
19893235
19882225
19873446
19863841
19852527
19842530
19833437
19823646
19813844
19804045
19794254

When crashes happen on the A5135

Friday has the most collisions on the A5135 (126), and 3pm to 6pm is the busiest time of day (165).

Collisions by day of the week

  • Monday98 (15%)
  • Tuesday115 (17%)
  • Wednesday101 (15%)
  • Thursday89 (13%)
  • Friday126 (19%)
  • Saturday82 (12%)
  • Sunday52 (7.8%)

Collisions by time of day

  • Midnight to 3am15 (2.3%)
  • 3am to 6am6 (0.9%)
  • 6am to 9am79 (12%)
  • 9am to noon91 (14%)
  • Noon to 3pm133 (20%)
  • 3pm to 6pm165 (25%)
  • 6pm to 9pm108 (16%)
  • 9pm to midnight66 (10%)

Collisions by month

  • January55 (8.3%)
  • February47 (7.1%)
  • March63 (9.5%)
  • April44 (6.6%)
  • May58 (8.7%)
  • June50 (7.5%)
  • July51 (7.7%)
  • August45 (6.8%)
  • September57 (8.6%)
  • October62 (9.4%)
  • November63 (9.5%)
  • December68 (10%)

Light conditions at the time

  • Daylight468 (71%)
  • Dark, street lights lit181 (27%)
  • Dark, lighting unknown6 (0.9%)
  • Dark, street lights unlit5 (0.8%)
  • Dark, no street lighting3 (0.5%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in A5135 crashes

On the A5135, 97% of collisions happened where the speed limit was 30 mph and 65% on a dry road surface.

Speed limit at the scene

  • 30 mph646 (97%)
  • 40 mph5 (0.8%)
  • 50 mph5 (0.8%)
  • 60 mph7 (1.1%)

Weather at the time

  • Fine, no high winds426 (64%)
  • Raining, no high winds109 (16%)
  • Fine with high winds6 (0.9%)
  • Raining with high winds6 (0.9%)
  • Other113 (17%)
  • Not recorded3 (0.5%)

Road surface

  • Dry434 (65%)
  • Wet or damp209 (32%)
  • Frost or ice9 (1.4%)
  • Snow8 (1.2%)
  • Not recorded3 (0.5%)

Type of road

  • Single carriageway444 (67%)
  • Roundabout75 (11%)
  • One way street or slip road47 (7.1%)
  • Dual carriageway34 (5.1%)
  • Not recorded63 (9.5%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in A5135 crashes

Car occupants make up 47% of the people killed or injured on the A5135, followed by motorcyclists (18%).

Casualties by road user

  • Car occupant382 (47%)
  • Motorcyclist147 (18%)
  • Pedestrian146 (18%)
  • Cyclist78 (9.7%)
  • Bus or coach occupant24 (3%)
  • Van occupant20 (2.5%)
  • Goods vehicle occupant (over 3.5 tonnes)3 (0.4%)
  • Other5 (0.6%)

Vehicles involved

  • Car781 (68%)
  • Motorcycle152 (13%)
  • Pedal cycle80 (7%)
  • Van or goods vehicle up to 3.5 tonnes66 (5.7%)
  • Bus or coach34 (3%)
  • Goods vehicle over 3.5 tonnes18 (1.6%)
  • Other vehicle9 (0.8%)
  • Other8 (0.7%)

Casualties by age

  • 0 to 510 (1.2%)
  • 6 to 1016 (2%)
  • 11 to 1552 (6.5%)
  • 16 to 20164 (20%)
  • 21 to 2599 (12%)
  • 26 to 35145 (18%)
  • 36 to 4596 (12%)
  • 46 to 5556 (7%)
  • 56 to 6563 (7.8%)
  • 66 to 7533 (4.1%)
  • Over 7523 (2.9%)
  • Not recorded48 (6%)

Drivers, passengers and pedestrians

  • Driver or rider519 (64%)
  • Pedestrian146 (18%)
  • Passenger140 (17%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the A5135

Map of the 25 most recent crashes on the A5135

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

  • 25 crashes
  • Serious
  • Slight

A5135 crashes by council area

Collisions on the A5135 were recorded in 2 council areas. Hertsmere has the most, with 638, followed by Barnet (20).

Collisions on the A5135 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stHertsmere638776493
2ndBarnet202402

A5135 crashes by town

Collisions on the A5135 were recorded in 2 towns and built-up areas, led by Borehamwood (474) and Elstree (8).

Recent crashes on the A5135

These are the 25 most recent collisions on the A5135, from 25 March 2021 to 12 December 2025.

Severity