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CrashStats

AL2 road accidents: crash map and statistics

Police recorded 6,002 road traffic collisions in the AL2 postcode district, St Albans, from 1979 to 2025, and 8,753 people were killed or injured in them. Of those collisions, 91 were fatal and 1,048 were serious.

In 2025 police recorded 59 collisions, down 5% on 2024 (62).

Collisions since 1979
6,002
325th highest of 2,813 postcode districts
Casualties
8,753
1.46 per collision
Fatal collisions
91
94 people killed
Serious collisions
1,048
1,262 seriously injured
Collisions in 2025
59
Down 5% on 2024
Casualties in 2025
84
Down 15% on 2024

Road collision statistics for AL2

Collisions by severity, 1979 to 2025

  • Fatal911.5%
  • Serious1,04817%
  • Slight4,86381%

What the data shows

  • AL2 had 748 collisions from 2016 to 2025, 39% fewer than the 1,223 from 2006 to 2015.
  • 19% of collisions in AL2 were fatal or serious, against 20% across Great Britain.
  • 654 children under 16 were killed or injured in AL2, 7.5% of the casualties whose age was recorded.
  • The road surface was wet, icy, snowy or flooded in 37% of collisions in AL2.

Where AL2 ranks among 2,813 postcode districts

Most collisions
325th
Most casualties
235th
Most fatal collisions
370th
Most serious collisions
341st

Collisions by day of the week

  • Monday821 (14%)
  • Tuesday855 (14%)
  • Wednesday861 (14%)
  • Thursday908 (15%)
  • Friday1,062 (18%)
  • Saturday782 (13%)
  • Sunday713 (12%)

Light conditions

  • Daylight4,288 (71%)
  • Dark, street lights lit1,279 (21%)
  • Dark, no street lighting369 (6.1%)
  • Dark, lighting unknown45 (0.7%)
  • Dark, street lights unlit21 (0.3%)

Type of road

  • Dual carriageway2,874 (48%)
  • Single carriageway2,174 (36%)
  • Roundabout580 (9.7%)
  • One way street or slip road362 (6%)
  • Not recorded12 (0.2%)

Speed limit at the scene

  • 20 mph10 (0.2%)
  • 30 mph1,374 (23%)
  • 40 mph331 (5.5%)
  • 50 mph297 (4.9%)
  • 60 mph856 (14%)
  • 70 mph3,134 (52%)

Weather at the time

  • Fine, no high winds4,723 (79%)
  • Raining, no high winds913 (15%)
  • Raining with high winds86 (1.4%)
  • Fine with high winds66 (1.1%)
  • Fog or mist66 (1.1%)
  • Snowing, no high winds18 (0.3%)
  • Snowing with high winds2 (under 0.1%)
  • Other87 (1.4%)
  • Not recorded41 (0.7%)

Who was hurt

  • Car occupant6,575 (75%)
  • Motorcyclist719 (8.2%)
  • Pedestrian383 (4.4%)
  • Van occupant359 (4.1%)
  • Cyclist309 (3.5%)
  • Goods vehicle occupant (over 3.5 tonnes)237 (2.7%)
  • Minibus occupant64 (0.7%)
  • Bus or coach occupant45 (0.5%)
  • Taxi or private hire car occupant33 (0.4%)
  • Other vehicle occupant22 (0.3%)
  • Other7 (0.1%)

Source: Department for Transport, STATS19 road safety data

AL2 road accidents by year

Collisions and casualties in AL2, 1979 to 2025

Collisions in AL2 peaked at 203 in 2002; 2025 had 59.

  • Collisions
  • Collisions in 2025: 59
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
20255984
20246299
202383111
20226599
20216789
20206585
201973108
201876120
201797148
2016101142
201595149
201499136
201391127
2012118169
2011118170
2010116179
2009135207
2008154227
2007151222
2006146213
2005180285
2004202301
2003190305
2002203340
2001183278
2000186289
1999162228
1998166232
1997160232
1996180241
1995164229
1994144197
1993146216
1992109163
1991127179
1990143206
1989132198
1988151217
1987122159
1986135193
1985130168
1984115154
1983119185
1982126169
1981119173
1980113155
1979124177

Map of recent crashes in AL2

Map of the 24 most recent crashes in AL2

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

  • 24 crashes
  • Serious
  • Slight

Recent road crashes in AL2

The 24 most recent collisions in AL2 happened between 23 August and 30 December 2025.

Severity

Crashes by road in AL2

The M25 has the most collisions in AL2, 1,285 of 6,002 (21%), followed by the A405 (1,048).

Collisions in AL2 on each road, 1979 to 2025
RankRoadCollisionsCasualtiesFatalSerious
1stM251,2852,03720156
2ndA4051,0481,49524185
3rdM17841,3077112
4thA5183408576687
5thA414320457855
6thB5378288403460
7thA1081186254730
8thB4630165209134
9thB556163229139
10thA669103320
11thM104876316
12thA4147232604
13thA412101205
14thA54502

Council areas covering AL2

Collisions in AL2 were recorded in 9 council areas. St Albans has 5,134 of 6,002 (86%).

Collisions in AL2 by council area, 1979 to 2025
RankCouncil areaCollisionsCasualtiesFatalSerious
1stSt Albans5,1347,47181902
2ndHertsmere59289010111
3rdThree Rivers250360030
4thWatford7703
5thBroxbourne5800
6thNorth Hertfordshire4600
7thDacorum3300
8thStevenage3401
9thWelwyn Hatfield3300

Towns in AL2

Collisions in AL2 were recorded in 5 towns, led by London Colney (660) and Chiswell Green (406).