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CrashStats

Chiswell Green road accidents: crash map and statistics

Police recorded 406 road traffic collisions in Chiswell Green, St Albans, from 1979 to 2025, and 512 people were killed or injured in them. Of those collisions, 7 were fatal and 76 were serious.

In 2025 police recorded 2 collisions, down from 3 in 2024.

Collisions since 1979
406
1,295th highest of 2,851 towns
Casualties
512
1.26 per collision
Fatal collisions
7
7 people killed
Serious collisions
76
82 seriously injured
Collisions in 2025
2
3 in 2024
Casualties in 2025
2
3 in 2024

Road collision statistics for Chiswell Green

Collisions by severity, 1979 to 2025

  • Fatal71.7%
  • Serious7619%
  • Slight32380%

What the data shows

  • Chiswell Green had 37 collisions from 2016 to 2025, 40% fewer than the 62 from 2006 to 2015.
  • 20% of collisions in Chiswell Green were fatal or serious, against 20% across Great Britain.
  • 65 children under 16 were killed or injured in Chiswell Green, 13% of the casualties whose age was recorded.
  • The road surface was wet, icy, snowy or flooded in 39% of collisions in Chiswell Green.

Where Chiswell Green ranks among 2,851 towns

Most collisions
1,295th
Most casualties
1,304th
Most fatal collisions
1,110th
Most serious collisions
1,352nd

Collisions by day of the week

  • Monday64 (16%)
  • Tuesday66 (16%)
  • Wednesday60 (15%)
  • Thursday59 (15%)
  • Friday65 (16%)
  • Saturday50 (12%)
  • Sunday42 (10%)

Light conditions

  • Daylight297 (73%)
  • Dark, street lights lit97 (24%)
  • Dark, no street lighting6 (1.5%)
  • Dark, lighting unknown4 (1%)
  • Dark, street lights unlit2 (0.5%)

Type of road

  • Single carriageway311 (77%)
  • Dual carriageway52 (13%)
  • Roundabout41 (10%)
  • One way street or slip road1 (0.2%)
  • Not recorded1 (0.2%)

Speed limit at the scene

  • 30 mph232 (57%)
  • 40 mph92 (23%)
  • 60 mph14 (3.4%)
  • 70 mph68 (17%)

Weather at the time

  • Fine, no high winds318 (78%)
  • Raining, no high winds61 (15%)
  • Fog or mist7 (1.7%)
  • Fine with high winds3 (0.7%)
  • Raining with high winds3 (0.7%)
  • Snowing, no high winds1 (0.2%)
  • Other9 (2.2%)
  • Not recorded4 (1%)

Who was hurt

  • Car occupant313 (61%)
  • Motorcyclist72 (14%)
  • Pedestrian66 (13%)
  • Cyclist43 (8.4%)
  • Van occupant8 (1.6%)
  • Taxi or private hire car occupant5 (1%)
  • Goods vehicle occupant (over 3.5 tonnes)3 (0.6%)
  • E-scooter or powered transporter user1 (0.2%)
  • Other vehicle occupant1 (0.2%)

Source: Department for Transport, STATS19 road safety data

Chiswell Green road accidents by year

Collisions and casualties in Chiswell Green, 1979 to 2025

Collisions in Chiswell Green peaked at 22 in 1982; 2025 had 2.

  • Collisions
  • Collisions in 2025: 2
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
202522
202433
202379
202244
202157
202033
201922
201834
201745
201645
201545
201444
201345
20121016
201167
201056
200955
200833
20071316
200688
20051018
2004710
20031116
20021116
200178
200099
19991113
1998911
199749
19961215
199567
199489
199334
19921315
19911217
19901013
198989
19881722
19871821
19861018
19851821
19841313
19832132
19822225
1981910
19801012
19791820

Map of recent crashes in Chiswell Green

Map of the 24 most recent crashes in Chiswell Green

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

  • 24 crashes
  • Fatal
  • Serious
  • Slight

Recent road crashes in Chiswell Green

The 24 most recent collisions in Chiswell Green happened between 21 October 2020 and 14 September 2025.

Severity

Crashes by road in Chiswell Green

The B4630 has the most collisions in Chiswell Green, 158 of 406 (39%), followed by the A405 (78).

Collisions in Chiswell Green on each road, 1979 to 2025
RankRoadCollisionsCasualtiesFatalSerious
1stB4630158202133
2ndA40578103511
3rdA412101205

Council area for Chiswell Green

Chiswell Green is in St Albans, where police recorded 25,623 collisions from 1979 to 2025. Chiswell Green accounts for 1.6% of them.

Postcode district for Chiswell Green

All 406 collisions in Chiswell Green were in the AL2 postcode district.