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CrashStats

Hertsmere road accidents in 2017: crash map and statistics

Police recorded 308 road traffic collisions in Hertsmere in 2017, and 422 people were killed or injured in them. Of those collisions, 1 was fatal and 50 were serious.

Collisions were down 12% on 2016 (349), and casualties fell from 517.

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

Collisions in 2017
308
Down 12% on 2016
Casualties in 2017
422
Down 18% on 2016
Fatal collisions
1
0.3% of collisions
Serious collisions
50
16% of collisions

Crash severity in Hertsmere in 2017

0.3% of collisions in Hertsmere in 2017 were fatal and 16% serious, against 1.4% and 16% in Hertsmere from 1979 to 2025.

Collisions by worst injury

  • Fatal10.3%
  • Serious5016%
  • Slight25783%

People hurt, by injury

  • Fatal10.2%
  • Serious5413%
  • Slight36787%

Hertsmere road accidents by year

Collisions and casualties in Hertsmere, 1979 to 2025

Collisions peaked at 646 in 1979. 2017 is highlighted, with 308, down 12% on 2016.

  • Collisions
  • Collisions in 2017
  • 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 2017

Collisions by day of the week

  • Monday44 (14%)
  • Tuesday44 (14%)
  • Wednesday44 (14%)
  • Thursday51 (17%)
  • Friday56 (18%)
  • Saturday37 (12%)
  • Sunday32 (10%)

Collisions by time of day

  • 00:00 to 02:597 (2.3%)
  • 03:00 to 05:5910 (3.2%)
  • 06:00 to 08:5947 (15%)
  • 09:00 to 11:5949 (16%)
  • 12:00 to 14:5943 (14%)
  • 15:00 to 17:5987 (28%)
  • 18:00 to 20:5942 (14%)
  • 21:00 to 23:5923 (7.5%)

Collisions by month

  • January29 (9.4%)
  • February18 (5.8%)
  • March29 (9.4%)
  • April15 (4.9%)
  • May22 (7.1%)
  • June24 (7.8%)
  • July29 (9.4%)
  • August20 (6.5%)
  • September35 (11%)
  • October32 (10%)
  • November26 (8.4%)
  • December29 (9.4%)

Light conditions

  • Daylight222 (72%)
  • Dark, street lights lit66 (21%)
  • Dark, no street lighting15 (4.9%)
  • Dark, lighting unknown5 (1.6%)

Weather at the time

  • Fine, no high winds249 (81%)
  • Raining, no high winds37 (12%)
  • Fog or mist3 (1%)
  • Fine with high winds2 (0.6%)
  • Raining with high winds2 (0.6%)
  • Snowing with high winds1 (0.3%)
  • Other6 (1.9%)
  • Not recorded8 (2.6%)

Road surface

  • Dry221 (72%)
  • Wet or damp78 (25%)
  • Frost or ice5 (1.6%)
  • Snow1 (0.3%)
  • Not recorded3 (1%)

Speed limit at the scene

  • 20 mph2 (0.6%)
  • 30 mph151 (49%)
  • 40 mph12 (3.9%)
  • 50 mph6 (1.9%)
  • 60 mph47 (15%)
  • 70 mph90 (29%)

Type of road

  • Single carriageway158 (51%)
  • Dual carriageway86 (28%)
  • Roundabout49 (16%)
  • One way street or slip road13 (4.2%)
  • Not recorded2 (0.6%)

Source: Department for Transport, STATS19 road safety data

Who was hurt in road crashes in Hertsmere in 2017

Casualties by road user

  • Car occupant299 (71%)
  • Pedestrian43 (10%)
  • Motorcyclist32 (7.6%)
  • Cyclist27 (6.4%)
  • Van occupant13 (3.1%)
  • Bus or coach occupant2 (0.5%)
  • Taxi or private hire car occupant2 (0.5%)
  • Goods vehicle occupant (over 3.5 tonnes)1 (0.2%)
  • Goods vehicle occupant (weight unknown)1 (0.2%)
  • Minibus occupant1 (0.2%)
  • Other1 (0.2%)

Casualties by age

  • 0 to 59 (2.1%)
  • 6 to 108 (1.9%)
  • 11 to 1515 (3.6%)
  • 16 to 2032 (7.6%)
  • 21 to 2547 (11%)
  • 26 to 3590 (21%)
  • 36 to 4574 (18%)
  • 46 to 5569 (16%)
  • 56 to 6537 (8.8%)
  • 66 to 7514 (3.3%)
  • Over 7513 (3.1%)
  • Not recorded14 (3.3%)

Drivers, passengers and pedestrians

  • Driver or rider282 (67%)
  • Passenger97 (23%)
  • Pedestrian43 (10%)

Vehicles involved

  • Car456 (76%)
  • Motorcycle36 (6%)
  • Van or goods vehicle up to 3.5 tonnes35 (5.8%)
  • Pedal cycle28 (4.7%)
  • Goods vehicle, weight unknown16 (2.7%)
  • Goods vehicle over 3.5 tonnes14 (2.3%)
  • Bus or coach3 (0.5%)
  • Other vehicle2 (0.3%)
  • Taxi or private hire car2 (0.3%)
  • Minibus1 (0.2%)
  • Not recorded6 (1%)

Source: Department for Transport, STATS19 road safety data

Crash map for Hertsmere in 2017

Map of the last 24 crashes of 2017 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
  • Serious
  • Slight

Accident hotspots (10)

How Hertsmere ranked among 351 areas in 2017

Of the 351 areas in England, Scotland and Wales, Hertsmere had the 152nd most road collisions in 2017.

Collisions
152nd
highest of 351 areas
Casualties
146th
highest of 351 areas
Fatal collisions
283rd
of 351 areas, highest first
Serious collisions
182nd
of 351 areas, highest first

Accident hotspots in Hertsmere in 2017

Bushey North, Hertsmere, WD25 8HL area was the busiest accident hotspot in Hertsmere in 2017, with 25 collisions, 3 of them serious.

Roads in Hertsmere with the most crashes in 2017

The M25 had the most collisions in Hertsmere in 2017: 39, including 8 serious.

Roads ranked by collisions in Hertsmere, 2017
RankRoadCollisionsCasualtiesFatalSerious
1stM25396808
2ndM1253204
3rdA41193106
4thA1122011
5thA5183111203
6thA1(M)91402
7thA108181201
8thB46281103
9thA100071101
10thA400871000
11thA4117700
12thB537871201
13thA1116903
14thB5564601
15thA51353301
16thA4092200
17thA10051100
18thA4001100
19thB1561100

Towns in Hertsmere: crashes in 2017

Borehamwood had the most collisions of any town in Hertsmere in 2017: 51.

Postcode districts in Hertsmere: crashes in 2017

WD6 had the most collisions of any postcode district in Hertsmere in 2017: 85.

Latest crashes in Hertsmere in 2017

Of the last 24 crashes in Hertsmere in 2017, none were fatal and 4 were serious. The last was on 29 December 2017.

Severity

Hertsmere road accidents in other years