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CrashStats

Dacorum road accidents in 2017: crash map and statistics

Police recorded 238 road traffic collisions in Dacorum in 2017, and 327 people were killed or injured in them. Of those collisions, 3 were fatal and 34 were serious.

Collisions were up 2% on 2016 (234), and casualties rose from 325.

Across all years from 1979 to 2025, police recorded 20,193 collisions in Dacorum.

Collisions in 2017
238
Up 2% on 2016
Casualties in 2017
327
Up 1% on 2016
Fatal collisions
3
1.3% of collisions
Serious collisions
34
14% of collisions

Crash severity in Dacorum in 2017

1.3% of collisions in Dacorum in 2017 were fatal and 14% serious, against 1.3% and 20% in Dacorum from 1979 to 2025.

Collisions by worst injury

  • Fatal31.3%
  • Serious3414%
  • Slight20184%

People hurt, by injury

  • Fatal41.2%
  • Serious3912%
  • Slight28487%

Dacorum road accidents by year

Collisions and casualties in Dacorum, 1979 to 2025

Collisions peaked at 670 in 2000. 2017 is highlighted, with 238, up 2% on 2016.

  • Collisions
  • Collisions in 2017: 238
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
2025161207
2024160205
2023193273
2022187262
2021171227
2020143189
2019201267
2018194259
2017238327
2016234325
2015233323
2014239344
2013238307
2012285382
2011329437
2010325445
2009308454
2008363507
2007403586
2006431622
2005434638
2004459712
2003475725
2002515776
2001591890
2000670999
1999592866
1998610907
1997611887
1996587944
1995561835
1994540719
1993555817
1992543769
1991500678
1990610860
1989611827
1988590816
1987592810
1986622826
1985527732
1984544773
1983519679
1982546760
1981564757
1980621845
1979568780

When and where crashes happen in Dacorum in 2017

Collisions by day of the week

  • Monday27 (11%)
  • Tuesday29 (12%)
  • Wednesday32 (13%)
  • Thursday52 (22%)
  • Friday36 (15%)
  • Saturday34 (14%)
  • Sunday28 (12%)

Collisions by time of day

  • 00:00 to 02:594 (1.7%)
  • 03:00 to 05:593 (1.3%)
  • 06:00 to 08:5932 (13%)
  • 09:00 to 11:5935 (15%)
  • 12:00 to 14:5947 (20%)
  • 15:00 to 17:5957 (24%)
  • 18:00 to 20:5941 (17%)
  • 21:00 to 23:5919 (8%)

Collisions by month

  • January25 (11%)
  • February18 (7.6%)
  • March24 (10%)
  • April24 (10%)
  • May13 (5.5%)
  • June20 (8.4%)
  • July27 (11%)
  • August15 (6.3%)
  • September16 (6.7%)
  • October22 (9.2%)
  • November21 (8.8%)
  • December13 (5.5%)

Light conditions

  • Daylight175 (74%)
  • Dark, street lights lit45 (19%)
  • Dark, no street lighting11 (4.6%)
  • Dark, lighting unknown5 (2.1%)
  • Dark, street lights unlit2 (0.8%)

Weather at the time

  • Fine, no high winds194 (82%)
  • Raining, no high winds27 (11%)
  • Fine with high winds1 (0.4%)
  • Fog or mist1 (0.4%)
  • Raining with high winds1 (0.4%)
  • Other7 (2.9%)
  • Not recorded7 (2.9%)

Road surface

  • Dry180 (76%)
  • Wet or damp55 (23%)
  • Frost or ice3 (1.3%)

Speed limit at the scene

  • 20 mph2 (0.8%)
  • 30 mph143 (60%)
  • 40 mph24 (10%)
  • 50 mph13 (5.5%)
  • 60 mph22 (9.2%)
  • 70 mph34 (14%)

Type of road

  • Single carriageway157 (66%)
  • Dual carriageway46 (19%)
  • Roundabout28 (12%)
  • One way street or slip road4 (1.7%)
  • Not recorded3 (1.3%)

Source: Department for Transport, STATS19 road safety data

Who was hurt in road crashes in Dacorum in 2017

Casualties by road user

  • Car occupant205 (63%)
  • Pedestrian45 (14%)
  • Motorcyclist28 (8.6%)
  • Cyclist25 (7.6%)
  • Van occupant11 (3.4%)
  • Goods vehicle occupant (weight unknown)7 (2.1%)
  • E-scooter or powered transporter user2 (0.6%)
  • Other vehicle occupant2 (0.6%)
  • Goods vehicle occupant (over 3.5 tonnes)1 (0.3%)
  • Horse rider1 (0.3%)

Casualties by age

  • 0 to 52 (0.6%)
  • 6 to 105 (1.5%)
  • 11 to 1516 (4.9%)
  • 16 to 2035 (11%)
  • 21 to 2529 (8.9%)
  • 26 to 3571 (22%)
  • 36 to 4544 (13%)
  • 46 to 5553 (16%)
  • 56 to 6521 (6.4%)
  • 66 to 7524 (7.3%)
  • Over 7512 (3.7%)
  • Not recorded15 (4.6%)

Drivers, passengers and pedestrians

  • Driver or rider232 (71%)
  • Passenger50 (15%)
  • Pedestrian45 (14%)

Vehicles involved

  • Car343 (76%)
  • Motorcycle31 (6.9%)
  • Pedal cycle25 (5.5%)
  • Van or goods vehicle up to 3.5 tonnes20 (4.4%)
  • Goods vehicle, weight unknown13 (2.9%)
  • Goods vehicle over 3.5 tonnes11 (2.4%)
  • Agricultural vehicle1 (0.2%)
  • Bus or coach1 (0.2%)
  • Ridden horse1 (0.2%)
  • Taxi or private hire car1 (0.2%)
  • Other1 (0.2%)
  • Not recorded4 (0.9%)

Source: Department for Transport, STATS19 road safety data

Crash map for Dacorum in 2017

Map of the last 24 crashes of 2017 and the 10 busiest accident hotspots in Dacorum

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 Dacorum ranked among 351 areas in 2017

Of the 351 areas in England, Scotland and Wales, Dacorum had fewer road collisions than 209 of them in 2017.

Collisions
210th
of 351 areas, highest first
Casualties
206th
of 351 areas, highest first
Fatal collisions
183rd
of 351 areas, highest first
Serious collisions
261st
of 351 areas, highest first

Accident hotspots in Dacorum in 2017

Apsley and Corner Hall, Dacorum, HP3 9YT area was the busiest accident hotspot in Dacorum in 2017, with 16 collisions, 2 of them serious.

Roads in Dacorum with the most crashes in 2017

The A4251 had the most collisions in Dacorum in 2017: 22, including 1 fatal and 3 serious.

Roads ranked by collisions in Dacorum, 2017
RankRoadCollisionsCasualtiesFatalSerious
1stA4251223013
2ndA41172613
3rdM1142002
4thA414121401
5thB487122102
6thA4146111602
7thA41478801
8thA582401
9thA518371201
10thB4893300
11thB46352200
12thM252300
13thA41431200
14thA4161101
15thB40561100
16thB45061100

Towns in Dacorum: crashes in 2017

Hemel Hempstead had the most collisions of any town in Dacorum in 2017: 108.

Postcode districts in Dacorum: crashes in 2017

HP2 had the most collisions of any postcode district in Dacorum in 2017: 57.

Latest crashes in Dacorum in 2017

Of the last 24 crashes in Dacorum in 2017, 1 was fatal and 3 were serious. The last was on 31 December 2017.

Severity

Dacorum road accidents in other years