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CrashStats

Three Rivers road accidents in 2020: crash map and statistics

Police recorded 95 road traffic collisions in Three Rivers in 2020, and 119 people were killed or injured in them. Of those collisions, 2 were fatal and 16 were serious.

Collisions were down 28% on 2019 (132), and casualties fell from 195.

Across all years from 1979 to 2025, police recorded 13,304 collisions in Three Rivers.

Collisions in 2020
95
Down 28% on 2019
Casualties in 2020
119
Down 39% on 2019
Fatal collisions
2
2.1% of collisions
Serious collisions
16
17% of collisions

Crash severity in Three Rivers in 2020

2.1% of collisions in Three Rivers in 2020 were fatal and 17% serious, against 1.3% and 19% in Three Rivers from 1979 to 2025.

Collisions by worst injury

  • Fatal22.1%
  • Serious1617%
  • Slight7781%

People hurt, by injury

  • Fatal21.7%
  • Serious1815%
  • Slight9983%

Three Rivers road accidents by year

Collisions and casualties in Three Rivers, 1979 to 2025

Collisions peaked at 484 in 1997. 2020 is highlighted, with 95, down 28% on 2019.

  • Collisions
  • Collisions in 2020: 95
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
2025114168
2024104139
2023135179
2022140187
202199128
202095119
2019132195
2018175251
2017202271
2016185275
2015190281
2014199294
2013168235
2012161216
2011229330
2010218299
2009229320
2008268400
2007288435
2006276384
2005327490
2004307466
2003348497
2002355518
2001388550
2000387553
1999418624
1998439653
1997484670
1996445678
1995443699
1994336524
1993361525
1992311452
1991282407
1990332469
1989347461
1988341487
1987319449
1986359472
1985376509
1984369511
1983315416
1982346475
1981328451
1980284382
1979350469

When and where crashes happen in Three Rivers in 2020

Collisions by day of the week

  • Monday13 (14%)
  • Tuesday14 (15%)
  • Wednesday17 (18%)
  • Thursday17 (18%)
  • Friday16 (17%)
  • Saturday9 (9.5%)
  • Sunday9 (9.5%)

Collisions by time of day

  • 00:00 to 02:594 (4.2%)
  • 03:00 to 05:591 (1.1%)
  • 06:00 to 08:595 (5.3%)
  • 09:00 to 11:5918 (19%)
  • 12:00 to 14:5922 (23%)
  • 15:00 to 17:5927 (28%)
  • 18:00 to 20:5913 (14%)
  • 21:00 to 23:595 (5.3%)

Collisions by month

  • January5 (5.3%)
  • February7 (7.4%)
  • March7 (7.4%)
  • April6 (6.3%)
  • May5 (5.3%)
  • June6 (6.3%)
  • July5 (5.3%)
  • August14 (15%)
  • September12 (13%)
  • October14 (15%)
  • November6 (6.3%)
  • December8 (8.4%)

Light conditions

  • Daylight71 (75%)
  • Dark, street lights lit17 (18%)
  • Dark, no street lighting3 (3.2%)
  • Dark, street lights unlit3 (3.2%)
  • Dark, lighting unknown1 (1.1%)

Weather at the time

  • Fine, no high winds74 (78%)
  • Raining, no high winds17 (18%)
  • Fine with high winds1 (1.1%)
  • Other1 (1.1%)
  • Not recorded2 (2.1%)

Road surface

  • Dry69 (73%)
  • Wet or damp25 (26%)
  • Not recorded1 (1.1%)

Speed limit at the scene

  • 20 mph1 (1.1%)
  • 30 mph50 (53%)
  • 40 mph16 (17%)
  • 50 mph1 (1.1%)
  • 60 mph7 (7.4%)
  • 70 mph20 (21%)

Type of road

  • Single carriageway65 (68%)
  • Dual carriageway28 (29%)
  • One way street or slip road1 (1.1%)
  • Not recorded1 (1.1%)

Source: Department for Transport, STATS19 road safety data

Who was hurt in road crashes in Three Rivers in 2020

Casualties by road user

  • Car occupant80 (67%)
  • Pedestrian13 (11%)
  • Motorcyclist11 (9.2%)
  • Cyclist8 (6.7%)
  • Van occupant7 (5.9%)

Casualties by age

  • 0 to 54 (3.4%)
  • 6 to 103 (2.5%)
  • 11 to 152 (1.7%)
  • 16 to 2011 (9.2%)
  • 21 to 2520 (17%)
  • 26 to 3522 (18%)
  • 36 to 4524 (20%)
  • 46 to 5512 (10%)
  • 56 to 658 (6.7%)
  • 66 to 755 (4.2%)
  • Over 756 (5%)
  • Not recorded2 (1.7%)

Drivers, passengers and pedestrians

  • Driver or rider84 (71%)
  • Passenger22 (18%)
  • Pedestrian13 (11%)

Vehicles involved

  • Car131 (76%)
  • Van or goods vehicle up to 3.5 tonnes14 (8.1%)
  • Motorcycle11 (6.4%)
  • Pedal cycle8 (4.7%)
  • Goods vehicle over 3.5 tonnes4 (2.3%)
  • Other vehicle2 (1.2%)
  • Goods vehicle, weight unknown1 (0.6%)
  • Taxi or private hire car1 (0.6%)

Source: Department for Transport, STATS19 road safety data

Crash map for Three Rivers in 2020

Map of the last 24 crashes of 2020 and the 10 busiest accident hotspots in Three Rivers

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

  • 24 crashes
  • Serious
  • Slight

Accident hotspots (10)

How Three Rivers ranked among 350 areas in 2020

Of the 350 areas in England, Scotland and Wales, Three Rivers had fewer road collisions than 303 of them in 2020.

Collisions
304th
of 350 areas, highest first
Casualties
305th
of 350 areas, highest first
Fatal collisions
206th
of 350 areas, highest first
Serious collisions
321st
of 350 areas, highest first

Accident hotspots in Three Rivers in 2020

Kings Langley, Dacorum, WD4 8QJ area was the busiest accident hotspot in Three Rivers in 2020, with 7 collisions, 2 of them serious.

Roads in Three Rivers with the most crashes in 2020

The A404 and M25 had the most collisions in Three Rivers in 2020, with 14 each.

Roads ranked by collisions in Three Rivers, 2020
RankRoadCollisionsCasualtiesFatalSerious
1stA404141703
2ndM25142603
3rdA4125501
4thB45425610
5thM15500
6thA41254501
7thA40082201
8thA412301
9thA4051101

Towns in Three Rivers: crashes in 2020

Watford, Watford had the most collisions of any town in Three Rivers in 2020: 18.

Postcode districts in Three Rivers: crashes in 2020

WD3 had the most collisions of any postcode district in Three Rivers in 2020: 50.

Latest crashes in Three Rivers in 2020

Of the last 24 crashes in Three Rivers in 2020, none were fatal and 5 were serious. The last was on 24 December 2020.

Severity

Three Rivers road accidents in other years