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CrashStats

N20 road accidents: crash map and statistics

Police recorded 3,091 road traffic collisions in the N20 postcode district, Barnet, from 1980 to 2025, and 3,764 people were killed or injured in them. Of those collisions, 20 were fatal and 435 were serious.

In 2025 police recorded 25 collisions, down 32% on 2024 (37).

Collisions since 1980
3,091
1,277th highest of 2,813 postcode districts
Casualties
3,764
1.22 per collision
Fatal collisions
20
20 people killed
Serious collisions
435
461 seriously injured
Collisions in 2025
25
Down 32% on 2024
Casualties in 2025
29
Down 33% on 2024

Road collision statistics for N20

Collisions by severity, 1980 to 2025

  • Fatal200.6%
  • Serious43514%
  • Slight2,63685%

What the data shows

  • N20 had 431 collisions from 2016 to 2025, 21% fewer than the 545 from 2006 to 2015.
  • 15% of collisions in N20 were fatal or serious, against 20% across Great Britain.
  • 345 children under 16 were killed or injured in N20, 9.8% of the casualties whose age was recorded.
  • The road surface was wet, icy, snowy or flooded in 29% of collisions in N20.

Where N20 ranks among 2,813 postcode districts

Most collisions
1,277th
Most casualties
1,391st
Most fatal collisions
2,159th
Most serious collisions
1,673rd

Collisions by day of the week

  • Monday432 (14%)
  • Tuesday457 (15%)
  • Wednesday502 (16%)
  • Thursday486 (16%)
  • Friday503 (16%)
  • Saturday401 (13%)
  • Sunday310 (10%)

Light conditions

  • Daylight2,225 (72%)
  • Dark, street lights lit815 (26%)
  • Dark, lighting unknown34 (1.1%)
  • Dark, no street lighting9 (0.3%)
  • Dark, street lights unlit8 (0.3%)

Type of road

  • Single carriageway2,820 (91%)
  • Dual carriageway156 (5%)
  • Roundabout49 (1.6%)
  • One way street or slip road28 (0.9%)
  • Not recorded38 (1.2%)

Speed limit at the scene

  • 20 mph28 (0.9%)
  • 30 mph3,043 (98%)
  • 40 mph14 (0.5%)
  • 50 mph1 (under 0.1%)
  • 60 mph3 (0.1%)
  • 70 mph1 (under 0.1%)
  • Not recorded1 (under 0.1%)

Weather at the time

  • Fine, no high winds2,509 (81%)
  • Raining, no high winds424 (14%)
  • Raining with high winds26 (0.8%)
  • Fog or mist15 (0.5%)
  • Fine with high winds14 (0.5%)
  • Snowing, no high winds12 (0.4%)
  • Snowing with high winds2 (0.1%)
  • Other37 (1.2%)
  • Not recorded52 (1.7%)

Who was hurt

  • Car occupant2,127 (57%)
  • Pedestrian645 (17%)
  • Motorcyclist475 (13%)
  • Cyclist236 (6.3%)
  • Bus or coach occupant150 (4%)
  • Van occupant90 (2.4%)
  • Other vehicle occupant12 (0.3%)
  • Taxi or private hire car occupant11 (0.3%)
  • Goods vehicle occupant (over 3.5 tonnes)10 (0.3%)
  • Minibus occupant4 (0.1%)
  • Other2 (0.1%)
  • Not recorded2 (0.1%)

Source: Department for Transport, STATS19 road safety data

N20 road accidents by year

Collisions and casualties in N20, 1980 to 2025

Collisions in N20 peaked at 106 in 1995; 2025 had 25.

  • Collisions
  • Collisions in 2025: 25
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
20252529
20243743
20234955
20224447
20215562
20204854
20192530
20185263
20175158
20164558
20155464
20144251
20135666
20126571
20115984
20106177
20094862
20085585
20075074
20065573
20057283
20046691
20037794
200278101
20017090
20007384
199982105
19987995
199793113
199687106
1995106123
199490109
199390105
1992100118
199188109
1990100113
198991113
198895113
1987101117
1986102130
198597103
198495114
198382102
1982100126
198100
198011

Map of recent crashes in N20

Map of the 24 most recent crashes in N20

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

  • 24 crashes
  • Serious
  • Slight

Recent road crashes in N20

The 24 most recent collisions in N20 happened between 18 January and 13 December 2025.

Severity

Crashes by road in N20

The A1000 has the most collisions in N20, 993 of 3,091 (32%), followed by the A5109 (651).

Collisions in N20 on each road, 1980 to 2025
RankRoadCollisionsCasualtiesFatalSerious
1stA10009931,1825138
2ndA51096518451088
3rdA109494579169
4thB550254307135
5thB1453122141123

Council area for N20

N20 is in Barnet, where police recorded 65,653 collisions from 1979 to 2025. N20 accounts for 4.7% of them.

Town in N20

Of the 3,091 collisions in N20, 2,979 (96%) were in Barnet.