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CrashStats

Hertsmere road accidents in 2023: crash map and statistics

Police recorded 234 road traffic collisions in Hertsmere in 2023, and 316 people were killed or injured in them. Of those collisions, 7 were fatal and 44 were serious.

Collisions were down 11% on 2022 (263), and casualties fell from 381.

Across all years from 1979 to 2025, police recorded 20,104 collisions in Hertsmere.

Collisions in 2023
234
Down 11% on 2022
Casualties in 2023
316
Down 17% on 2022
Fatal collisions
7
3% of collisions
Serious collisions
44
19% of collisions

Crash severity in Hertsmere in 2023

3% of collisions in Hertsmere in 2023 were fatal and 19% serious, against 1.4% and 16% in Hertsmere from 1979 to 2025.

Collisions by worst injury

  • Fatal73%
  • Serious4419%
  • Slight18378%

People hurt, by injury

  • Fatal72.2%
  • Serious4815%
  • Slight26183%

Hertsmere road accidents by year

Collisions and casualties in Hertsmere, 1979 to 2025

Collisions peaked at 646 in 1979. 2023 is highlighted, with 234, down 11% on 2022.

  • Collisions
  • Collisions in 2023: 234
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
2025223317
2024249349
2023234316
2022263381
2021215295
2020189278
2019231298
2018272394
2017308422
2016349517
2015364510
2014337577
2013308438
2012310449
2011342487
2010355509
2009348494
2008340484
2007396619
2006429621
2005429622
2004468681
2003459700
2002505778
2001499771
2000506747
1999539719
1998502684
1997531703
1996520656
1995568750
1994502645
1993480661
1992497688
1991479644
1990586777
1989569731
1988510690
1987540716
1986544683
1985528671
1984565717
1983452586
1982496668
1981540711
1980582799
1979646903

When and where crashes happen in Hertsmere in 2023

Collisions by day of the week

  • Monday29 (12%)
  • Tuesday30 (13%)
  • Wednesday32 (14%)
  • Thursday41 (18%)
  • Friday37 (16%)
  • Saturday40 (17%)
  • Sunday25 (11%)

Collisions by time of day

  • 00:00 to 02:597 (3%)
  • 03:00 to 05:599 (3.8%)
  • 06:00 to 08:5930 (13%)
  • 09:00 to 11:5931 (13%)
  • 12:00 to 14:5943 (18%)
  • 15:00 to 17:5956 (24%)
  • 18:00 to 20:5939 (17%)
  • 21:00 to 23:5919 (8.1%)

Collisions by month

  • January26 (11%)
  • February21 (9%)
  • March21 (9%)
  • April17 (7.3%)
  • May17 (7.3%)
  • June20 (8.5%)
  • July19 (8.1%)
  • August22 (9.4%)
  • September22 (9.4%)
  • October13 (5.6%)
  • November16 (6.8%)
  • December20 (8.5%)

Light conditions

  • Daylight158 (68%)
  • Dark, street lights lit57 (24%)
  • Dark, no street lighting10 (4.3%)
  • Dark, lighting unknown6 (2.6%)
  • Dark, street lights unlit3 (1.3%)

Weather at the time

  • Fine, no high winds200 (85%)
  • Raining, no high winds23 (9.8%)
  • Raining with high winds2 (0.9%)
  • Fine with high winds1 (0.4%)
  • Fog or mist1 (0.4%)
  • Other6 (2.6%)
  • Not recorded1 (0.4%)

Road surface

  • Dry153 (65%)
  • Wet or damp50 (21%)
  • Frost or ice5 (2.1%)
  • Not recorded26 (11%)

Speed limit at the scene

  • 20 mph13 (5.6%)
  • 30 mph114 (49%)
  • 40 mph26 (11%)
  • 50 mph11 (4.7%)
  • 60 mph26 (11%)
  • 70 mph44 (19%)

Type of road

  • Single carriageway136 (58%)
  • Dual carriageway52 (22%)
  • Roundabout28 (12%)
  • One way street or slip road12 (5.1%)
  • Not recorded6 (2.6%)

Source: Department for Transport, STATS19 road safety data

Who was hurt in road crashes in Hertsmere in 2023

Casualties by road user

  • Car occupant211 (67%)
  • Pedestrian37 (12%)
  • Motorcyclist30 (9.5%)
  • Cyclist15 (4.7%)
  • Van occupant13 (4.1%)
  • Goods vehicle occupant (over 3.5 tonnes)4 (1.3%)
  • Taxi or private hire car occupant2 (0.6%)
  • Other vehicle occupant1 (0.3%)
  • Not recorded3 (0.9%)

Casualties by age

  • 0 to 55 (1.6%)
  • 6 to 105 (1.6%)
  • 11 to 153 (0.9%)
  • 16 to 2022 (7%)
  • 21 to 2547 (15%)
  • 26 to 3565 (21%)
  • 36 to 4562 (20%)
  • 46 to 5542 (13%)
  • 56 to 6529 (9.2%)
  • 66 to 7520 (6.3%)
  • Over 7510 (3.2%)
  • Not recorded6 (1.9%)

Drivers, passengers and pedestrians

  • Driver or rider217 (69%)
  • Passenger62 (20%)
  • Pedestrian37 (12%)

Vehicles involved

  • Car322 (73%)
  • Van or goods vehicle up to 3.5 tonnes32 (7.3%)
  • Motorcycle31 (7.1%)
  • Pedal cycle15 (3.4%)
  • Goods vehicle over 3.5 tonnes14 (3.2%)
  • Goods vehicle, weight unknown8 (1.8%)
  • Personal powered transporter (e-scooter or similar)5 (1.1%)
  • Bus or coach4 (0.9%)
  • Other vehicle3 (0.7%)
  • Taxi or private hire car3 (0.7%)
  • Not recorded2 (0.5%)

Source: Department for Transport, STATS19 road safety data

Crash map for Hertsmere in 2023

Map of the last 24 crashes of 2023 and the 10 busiest accident hotspots in Hertsmere

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

  • 24 crashes
  • Fatal
  • Serious
  • Slight

Accident hotspots (10)

How Hertsmere ranked among 351 areas in 2023

Of the 351 areas in England, Scotland and Wales, Hertsmere had the 156th most road collisions in 2023.

Collisions
156th
highest of 351 areas
Casualties
146th
highest of 351 areas
Fatal collisions
48th
highest of 351 areas
Serious collisions
219th
of 351 areas, highest first

Accident hotspots in Hertsmere in 2023

Borehamwood Brookmeadow, Hertsmere, WD6 1AW area was the busiest accident hotspot in Hertsmere in 2023, with 26 collisions, 4 of them serious.

Roads in Hertsmere with the most crashes in 2023

The M25 had the most collisions in Hertsmere in 2023: 22, including 1 fatal and 4 serious.

Roads ranked by collisions in Hertsmere, 2023
RankRoadCollisionsCasualtiesFatalSerious
1stM25223814
2ndA5183162014
3rdB5378151703
4thA41141601
5thA1132502
6thB462111501
7thA4008101510
8thA411101806
9thM181110
10thB5566903
11thA10004400
12thA10054801
13thA1114500
14thA51354400
15thA1(M)3401
16thA10812200
17thA41402201
18thA4091100

Towns in Hertsmere: crashes in 2023

Borehamwood had the most collisions of any town in Hertsmere in 2023: 50.

Postcode districts in Hertsmere: crashes in 2023

WD6 had the most collisions of any postcode district in Hertsmere in 2023: 75.

Latest crashes in Hertsmere in 2023

Of the last 24 crashes in Hertsmere in 2023, 1 was fatal and 4 were serious. The last was on 29 December 2023.

Severity

Hertsmere road accidents in other years