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CrashStats

Hertsmere road accidents in 2009: crash map and statistics

Police recorded 348 road traffic collisions in Hertsmere in 2009, and 494 people were killed or injured in them. Of those collisions, none were fatal and 48 were serious.

Collisions were up 2% on 2008 (340), and casualties rose from 484.

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

Collisions in 2009
348
Up 2% on 2008
Casualties in 2009
494
Up 2% on 2008
Fatal collisions
0
0% of collisions
Serious collisions
48
14% of collisions

Crash severity in Hertsmere in 2009

None of the collisions in Hertsmere in 2009 were fatal and 14% were serious, against 1.4% and 16% in Hertsmere from 1979 to 2025.

Collisions by worst injury

  • Fatal00%
  • Serious4814%
  • Slight30086%

People hurt, by injury

  • Fatal00%
  • Serious5311%
  • Slight44189%

Hertsmere road accidents by year

Collisions and casualties in Hertsmere, 1979 to 2025

Collisions peaked at 646 in 1979. 2009 is highlighted, with 348, up 2% on 2008.

  • Collisions
  • Collisions in 2009
  • 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 2009

Collisions by day of the week

  • Monday45 (13%)
  • Tuesday59 (17%)
  • Wednesday45 (13%)
  • Thursday59 (17%)
  • Friday50 (14%)
  • Saturday40 (11%)
  • Sunday50 (14%)

Collisions by time of day

  • 00:00 to 02:594 (1.1%)
  • 03:00 to 05:597 (2%)
  • 06:00 to 08:5952 (15%)
  • 09:00 to 11:5950 (14%)
  • 12:00 to 14:5955 (16%)
  • 15:00 to 17:5979 (23%)
  • 18:00 to 20:5967 (19%)
  • 21:00 to 23:5934 (9.8%)

Collisions by month

  • January30 (8.6%)
  • February24 (6.9%)
  • March31 (8.9%)
  • April27 (7.8%)
  • May21 (6%)
  • June37 (11%)
  • July28 (8%)
  • August28 (8%)
  • September30 (8.6%)
  • October35 (10%)
  • November30 (8.6%)
  • December27 (7.8%)

Light conditions

  • Daylight255 (73%)
  • Dark, street lights lit71 (20%)
  • Dark, no street lighting21 (6%)
  • Dark, street lights unlit1 (0.3%)

Weather at the time

  • Fine, no high winds256 (74%)
  • Raining, no high winds55 (16%)
  • Snowing, no high winds8 (2.3%)
  • Raining with high winds4 (1.1%)
  • Fine with high winds2 (0.6%)
  • Snowing with high winds1 (0.3%)
  • Other22 (6.3%)

Road surface

  • Dry213 (61%)
  • Wet or damp114 (33%)
  • Frost or ice10 (2.9%)
  • Snow7 (2%)
  • Flood over 3cm deep4 (1.1%)

Speed limit at the scene

  • 30 mph159 (46%)
  • 40 mph26 (7.5%)
  • 50 mph2 (0.6%)
  • 60 mph66 (19%)
  • 70 mph95 (27%)

Type of road

  • Single carriageway198 (57%)
  • Dual carriageway93 (27%)
  • Roundabout35 (10%)
  • One way street or slip road22 (6.3%)

Source: Department for Transport, STATS19 road safety data

Who was hurt in road crashes in Hertsmere in 2009

Casualties by road user

  • Car occupant360 (73%)
  • Motorcyclist54 (11%)
  • Pedestrian29 (5.9%)
  • Cyclist21 (4.3%)
  • Van occupant13 (2.6%)
  • Goods vehicle occupant (over 3.5 tonnes)6 (1.2%)
  • Taxi or private hire car occupant4 (0.8%)
  • Minibus occupant3 (0.6%)
  • Bus or coach occupant2 (0.4%)
  • Other vehicle occupant1 (0.2%)
  • Other1 (0.2%)

Casualties by age

  • 0 to 54 (0.8%)
  • 6 to 1014 (2.8%)
  • 11 to 1522 (4.5%)
  • 16 to 2067 (14%)
  • 21 to 2567 (14%)
  • 26 to 3590 (18%)
  • 36 to 4588 (18%)
  • 46 to 5567 (14%)
  • 56 to 6535 (7.1%)
  • 66 to 7523 (4.7%)
  • Over 7517 (3.4%)

Drivers, passengers and pedestrians

  • Driver or rider339 (69%)
  • Passenger126 (26%)
  • Pedestrian29 (5.9%)

Vehicles involved

  • Car539 (77%)
  • Motorcycle53 (7.6%)
  • Goods vehicle over 3.5 tonnes36 (5.1%)
  • Van or goods vehicle up to 3.5 tonnes24 (3.4%)
  • Pedal cycle21 (3%)
  • Other vehicle9 (1.3%)
  • Taxi or private hire car8 (1.1%)
  • Bus or coach5 (0.7%)
  • Minibus5 (0.7%)
  • Ridden horse1 (0.1%)

Source: Department for Transport, STATS19 road safety data

Crash map for Hertsmere in 2009

Map of the last 24 crashes of 2009 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 2009

Of the 351 areas in England, Scotland and Wales, Hertsmere had fewer road collisions than 184 of them in 2009.

Collisions
185th
of 351 areas, highest first
Casualties
175th
highest of 351 areas
Fatal collisions
None
joint lowest with 14 other areas
Serious collisions
178th
of 351 areas, highest first

Accident hotspots in Hertsmere in 2009

Borehamwood Brookmeadow, Hertsmere, WD6 1AW area was the busiest accident hotspot in Hertsmere in 2009, with 35 collisions, 4 of them serious.

Roads in Hertsmere with the most crashes in 2009

The M25 had the most collisions in Hertsmere in 2009: 56, including 5 serious.

Roads ranked by collisions in Hertsmere, 2009
RankRoadCollisionsCasualtiesFatalSerious
1stM255610305
2ndA41253701
3rdB5378202403
4thB462182703
5thM1183006
6thA5183172403
7thB556141601
8thA411131402
9thA1121601
10thA1000121803
11thA5135101101
12thA1(M)91001
13thA400881400
14thA10816801
15thA10054902
16thA1113500
17thA41403501

Towns in Hertsmere: crashes in 2009

Borehamwood had the most collisions of any town in Hertsmere in 2009: 67.

Postcode districts in Hertsmere: crashes in 2009

EN6 had the most collisions of any postcode district in Hertsmere in 2009: 98.

Latest crashes in Hertsmere in 2009

Of the last 24 crashes in Hertsmere in 2009, none were fatal and 3 were serious. The last was on 30 December 2009.

Severity

Hertsmere road accidents in other years