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CrashStats

North Hertfordshire road accidents in 2021: crash map and statistics

Police recorded 153 road traffic collisions in North Hertfordshire in 2021, and 208 people were killed or injured in them. Of those collisions, 3 were fatal and 38 were serious.

Collisions were up 6% on 2020 (144), and casualties fell from 229.

Across all years from 1979 to 2025, police recorded 17,238 collisions in North Hertfordshire.

Collisions in 2021
153
Up 6% on 2020
Casualties in 2021
208
Down 9% on 2020
Fatal collisions
3
2% of collisions
Serious collisions
38
25% of collisions

Crash severity in North Hertfordshire in 2021

2% of collisions in North Hertfordshire in 2021 were fatal and 25% serious, against 2% and 20% in North Hertfordshire from 1979 to 2025.

Collisions by worst injury

  • Fatal32%
  • Serious3825%
  • Slight11273%

People hurt, by injury

  • Fatal31.4%
  • Serious4622%
  • Slight15976%

North Hertfordshire road accidents by year

Collisions and casualties in North Hertfordshire, 1979 to 2025

Collisions peaked at 512 in 1998. 2021 is highlighted, with 153, up 6% on 2020.

  • Collisions
  • Collisions in 2021: 153
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
2025158225
2024200281
2023166223
2022168236
2021153208
2020144229
2019193265
2018226306
2017225305
2016359481
2015290383
2014291400
2013249341
2012281396
2011253351
2010261391
2009315432
2008324453
2007407550
2006437625
2005439617
2004429613
2003440639
2002467648
2001468621
2000470646
1999459614
1998512718
1997447604
1996460612
1995392523
1994417578
1993443575
1992413541
1991418575
1990486646
1989511697
1988494663
1987439567
1986491656
1985403518
1984450593
1983444581
1982426561
1981415557
1980411559
1979494675

When and where crashes happen in North Hertfordshire in 2021

Collisions by day of the week

  • Monday23 (15%)
  • Tuesday20 (13%)
  • Wednesday21 (14%)
  • Thursday25 (16%)
  • Friday26 (17%)
  • Saturday22 (14%)
  • Sunday16 (10%)

Collisions by time of day

  • 00:00 to 02:592 (1.3%)
  • 03:00 to 05:593 (2%)
  • 06:00 to 08:5920 (13%)
  • 09:00 to 11:5925 (16%)
  • 12:00 to 14:5927 (18%)
  • 15:00 to 17:5942 (27%)
  • 18:00 to 20:5922 (14%)
  • 21:00 to 23:5912 (7.8%)

Collisions by month

  • January5 (3.3%)
  • February6 (3.9%)
  • March7 (4.6%)
  • April13 (8.5%)
  • May10 (6.5%)
  • June8 (5.2%)
  • July12 (7.8%)
  • August13 (8.5%)
  • September17 (11%)
  • October19 (12%)
  • November21 (14%)
  • December22 (14%)

Light conditions

  • Daylight109 (71%)
  • Dark, street lights lit29 (19%)
  • Dark, no street lighting11 (7.2%)
  • Dark, lighting unknown3 (2%)
  • Dark, street lights unlit1 (0.7%)

Weather at the time

  • Fine, no high winds130 (85%)
  • Raining, no high winds14 (9.2%)
  • Fine with high winds1 (0.7%)
  • Fog or mist1 (0.7%)
  • Other6 (3.9%)
  • Not recorded1 (0.7%)

Road surface

  • Dry112 (73%)
  • Wet or damp38 (25%)
  • Frost or ice1 (0.7%)
  • Not recorded2 (1.3%)

Speed limit at the scene

  • 20 mph6 (3.9%)
  • 30 mph84 (55%)
  • 40 mph12 (7.8%)
  • 50 mph2 (1.3%)
  • 60 mph27 (18%)
  • 70 mph22 (14%)

Type of road

  • Single carriageway100 (65%)
  • Dual carriageway28 (18%)
  • Roundabout22 (14%)
  • One way street or slip road3 (2%)

Source: Department for Transport, STATS19 road safety data

Who was hurt in road crashes in North Hertfordshire in 2021

Casualties by road user

  • Car occupant130 (63%)
  • Cyclist31 (15%)
  • Van occupant14 (6.7%)
  • Pedestrian13 (6.3%)
  • Motorcyclist11 (5.3%)
  • Bus or coach occupant2 (1%)
  • Agricultural vehicle occupant1 (0.5%)
  • Goods vehicle occupant (over 3.5 tonnes)1 (0.5%)
  • Mobility scooter rider1 (0.5%)
  • Other vehicle occupant1 (0.5%)
  • Not recorded3 (1.4%)

Casualties by age

  • 0 to 52 (1%)
  • 6 to 104 (1.9%)
  • 11 to 157 (3.4%)
  • 16 to 2022 (11%)
  • 21 to 2514 (6.7%)
  • 26 to 3556 (27%)
  • 36 to 4529 (14%)
  • 46 to 5530 (14%)
  • 56 to 6523 (11%)
  • 66 to 7510 (4.8%)
  • Over 755 (2.4%)
  • Not recorded6 (2.9%)

Drivers, passengers and pedestrians

  • Driver or rider154 (74%)
  • Passenger41 (20%)
  • Pedestrian13 (6.3%)

Vehicles involved

  • Car203 (70%)
  • Pedal cycle31 (11%)
  • Van or goods vehicle up to 3.5 tonnes31 (11%)
  • Motorcycle10 (3.4%)
  • Goods vehicle over 3.5 tonnes5 (1.7%)
  • Agricultural vehicle3 (1%)
  • Personal powered transporter (e-scooter or similar)3 (1%)
  • Goods vehicle, weight unknown2 (0.7%)
  • Other vehicle2 (0.7%)
  • Bus or coach1 (0.3%)
  • Other1 (0.3%)

Source: Department for Transport, STATS19 road safety data

Crash map for North Hertfordshire in 2021

Map of the last 24 crashes of 2021 and the 10 busiest accident hotspots in North Hertfordshire

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

  • 24 crashes
  • Serious
  • Slight

Accident hotspots (10)

How North Hertfordshire ranked among 350 areas in 2021

Of the 350 areas in England, Scotland and Wales, North Hertfordshire had fewer road collisions than 239 of them in 2021.

Collisions
240th
of 350 areas, highest first
Casualties
235th
of 350 areas, highest first
Fatal collisions
162nd
highest of 350 areas
Serious collisions
228th
of 350 areas, highest first

Accident hotspots in North Hertfordshire in 2021

Letchworth South East, North Hertfordshire, SG6 1NX area was the busiest accident hotspot in North Hertfordshire in 2021, with 17 collisions, 1 of them serious.

Roads in North Hertfordshire with the most crashes in 2021

The A505 had the most collisions in North Hertfordshire in 2021: 28, including 1 fatal and 13 serious.

Roads ranked by collisions in North Hertfordshire, 2021
RankRoadCollisionsCasualtiesFatalSerious
1stA5052841113
2ndB656152419
3rdA1091111
4thA1(M)71201
5thA6026901
6thB19761200
7thA5074601
8thB10393500
9thB6552401
10thA6001201
11thB6511200

Towns in North Hertfordshire: crashes in 2021

Letchworth had the most collisions of any town in North Hertfordshire in 2021: 31.

Postcode districts in North Hertfordshire: crashes in 2021

SG6 had the most collisions of any postcode district in North Hertfordshire in 2021: 41.

Latest crashes in North Hertfordshire in 2021

Of the last 24 crashes in North Hertfordshire in 2021, none were fatal and 9 were serious. The last was on 30 December 2021.

Severity

North Hertfordshire road accidents in other years