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CrashStats

HA5 road accidents: crash map and statistics

Police recorded 4,654 road traffic collisions in the HA5 postcode district, Harrow, from 1979 to 2025, and 5,699 people were killed or injured in them. Of those collisions, 39 were fatal and 725 were serious.

In 2025 police recorded 49 collisions, down 8% on 2024 (53).

Collisions since 1979
4,654
664th highest of 2,813 postcode districts
Casualties
5,699
1.22 per collision
Fatal collisions
39
43 people killed
Serious collisions
725
794 seriously injured
Collisions in 2025
49
Down 8% on 2024
Casualties in 2025
50
Down 22% on 2024

Road collision statistics for HA5

Collisions by severity, 1979 to 2025

  • Fatal390.8%
  • Serious72516%
  • Slight3,89084%

What the data shows

  • HA5 had 588 collisions from 2016 to 2025, 17% fewer than the 707 from 2006 to 2015.
  • 16% of collisions in HA5 were fatal or serious, against 20% across Great Britain.
  • 621 children under 16 were killed or injured in HA5, 12% of the casualties whose age was recorded.
  • The road surface was wet, icy, snowy or flooded in 28% of collisions in HA5.

Where HA5 ranks among 2,813 postcode districts

Most collisions
664th
Most casualties
787th
Most fatal collisions
1,538th
Most serious collisions
906th

Collisions by day of the week

  • Monday616 (13%)
  • Tuesday702 (15%)
  • Wednesday701 (15%)
  • Thursday713 (15%)
  • Friday792 (17%)
  • Saturday625 (13%)
  • Sunday505 (11%)

Light conditions

  • Daylight3,298 (71%)
  • Dark, street lights lit1,283 (28%)
  • Dark, lighting unknown45 (1%)
  • Dark, street lights unlit16 (0.3%)
  • Dark, no street lighting12 (0.3%)

Type of road

  • Single carriageway3,941 (85%)
  • Dual carriageway307 (6.6%)
  • Roundabout272 (5.8%)
  • One way street or slip road86 (1.8%)
  • Not recorded48 (1%)

Speed limit at the scene

  • 20 mph61 (1.3%)
  • 30 mph4,297 (92%)
  • 40 mph232 (5%)
  • 50 mph7 (0.2%)
  • 60 mph56 (1.2%)
  • Not recorded1 (under 0.1%)

Weather at the time

  • Fine, no high winds3,795 (82%)
  • Raining, no high winds621 (13%)
  • Fine with high winds34 (0.7%)
  • Raining with high winds30 (0.6%)
  • Snowing, no high winds20 (0.4%)
  • Fog or mist14 (0.3%)
  • Snowing with high winds2 (under 0.1%)
  • Other78 (1.7%)
  • Not recorded60 (1.3%)

Who was hurt

  • Car occupant3,314 (58%)
  • Pedestrian1,000 (18%)
  • Motorcyclist603 (11%)
  • Cyclist484 (8.5%)
  • Bus or coach occupant121 (2.1%)
  • Van occupant120 (2.1%)
  • Taxi or private hire car occupant23 (0.4%)
  • Minibus occupant15 (0.3%)
  • Other vehicle occupant9 (0.2%)
  • Goods vehicle occupant (over 3.5 tonnes)7 (0.1%)
  • Other1 (under 0.1%)
  • Not recorded2 (under 0.1%)

Source: Department for Transport, STATS19 road safety data

HA5 road accidents by year

Collisions and casualties in HA5, 1979 to 2025

Collisions in HA5 peaked at 180 in 1982; 2025 had 49.

  • Collisions
  • Collisions in 2025: 49
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
20254950
20245364
20235665
20226879
20214962
20204853
20196776
20187896
20176775
20165363
20155876
20146985
20136572
201268102
20116273
201088115
20097189
20085971
200778109
200689108
2005112148
2004109144
2003102121
2002139181
2001115157
2000154199
1999130159
1998117140
1997149167
1996121147
1995153193
1994133170
1993142168
1992130147
1991136167
1990167195
1989159185
1988137180
1987161195
1986154177
1985156190
1984142162
1983153184
1982180231
198145
198022
197922

Map of recent crashes in HA5

Map of the 24 most recent crashes in HA5

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 HA5

The 24 most recent collisions in HA5 happened between 9 September and 23 December 2025.

Severity

Crashes by road in HA5

The A404 has the most collisions in HA5, 972 of 4,654 (21%), followed by the A410 (647).

Collisions in HA5 on each road, 1979 to 2025
RankRoadCollisionsCasualtiesFatalSerious
1stA4049721,1664143
2ndA41064778610111
3rdB466282356437
4thA4008246350641
5thB472201247333
6thA4090185259537
7thB463566306
8thB45428801

Council areas covering HA5

Collisions in HA5 were recorded in 3 council areas. Harrow has 3,352 of 4,654 (72%).

Collisions in HA5 by council area, 1979 to 2025
RankCouncil areaCollisionsCasualtiesFatalSerious
1stHarrow3,3524,13031525
2ndHillingdon1,2151,4528184
3rdThree Rivers81111014

Towns in HA5

Collisions in HA5 were recorded in 2 towns, led by Harrow (3,217) and Hillingdon (1,059).