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CrashStats

Hertsmere road accidents in 1986: crash map and statistics

Police recorded 544 road traffic collisions in Hertsmere in 1986, and 683 people were killed or injured in them. Of those collisions, 10 were fatal and 97 were serious.

Collisions were up 3% on 1985 (528), and casualties rose from 671.

Across all years from 1979 to 2025, police recorded 20,104 collisions in Hertsmere.

Collisions in 1986
544
Up 3% on 1985
Casualties in 1986
683
Up 2% on 1985
Fatal collisions
10
1.8% of collisions
Serious collisions
97
18% of collisions

Crash severity in Hertsmere in 1986

1.8% of collisions in Hertsmere in 1986 were fatal and 18% serious, against 1.4% and 16% in Hertsmere from 1979 to 2025.

Collisions by worst injury

  • Fatal101.8%
  • Serious9718%
  • Slight43780%

People hurt, by injury

  • Fatal101.5%
  • Serious10415%
  • Slight56983%

Hertsmere road accidents by year

Collisions and casualties in Hertsmere, 1979 to 2025

Collisions peaked at 646 in 1979. 1986 is highlighted, with 544, up 3% on 1985.

  • Collisions
  • Collisions in 1986
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
2025223317
2024249349
2023234316
2022263381
2021215295
2020189278
2019231298
2018272394
2017308422
2016349517
2015364510
2014337577
2013308438
2012310449
2011342487
2010355509
2009348494
2008340484
2007396619
2006429621
2005429622
2004468681
2003459700
2002505778
2001499771
2000506747
1999539719
1998502684
1997531703
1996520656
1995568750
1994502645
1993480661
1992497688
1991479644
1990586777
1989569731
1988510690
1987540716
1986544683
1985528671
1984565717
1983452586
1982496668
1981540711
1980582799
1979646903

When and where crashes happen in Hertsmere in 1986

Collisions by day of the week

  • Monday107 (20%)
  • Tuesday79 (15%)
  • Wednesday83 (15%)
  • Thursday71 (13%)
  • Friday87 (16%)
  • Saturday65 (12%)
  • Sunday52 (9.6%)

Collisions by time of day

  • 00:00 to 02:5916 (2.9%)
  • 03:00 to 05:597 (1.3%)
  • 06:00 to 08:5969 (13%)
  • 09:00 to 11:5987 (16%)
  • 12:00 to 14:5982 (15%)
  • 15:00 to 17:59127 (23%)
  • 18:00 to 20:5993 (17%)
  • 21:00 to 23:5963 (12%)

Collisions by month

  • January49 (9%)
  • February36 (6.6%)
  • March52 (9.6%)
  • April31 (5.7%)
  • May46 (8.5%)
  • June52 (9.6%)
  • July38 (7%)
  • August40 (7.4%)
  • September42 (7.7%)
  • October55 (10%)
  • November49 (9%)
  • December54 (9.9%)

Light conditions

  • Daylight385 (71%)
  • Dark, street lights lit140 (26%)
  • Dark, no street lighting15 (2.8%)
  • Dark, lighting unknown2 (0.4%)
  • Dark, street lights unlit2 (0.4%)

Weather at the time

  • Fine, no high winds397 (73%)
  • Raining, no high winds82 (15%)
  • Fine with high winds11 (2%)
  • Raining with high winds10 (1.8%)
  • Fog or mist7 (1.3%)
  • Snowing, no high winds5 (0.9%)
  • Snowing with high winds1 (0.2%)
  • Other9 (1.7%)
  • Not recorded22 (4%)

Road surface

  • Dry323 (59%)
  • Wet or damp190 (35%)
  • Frost or ice19 (3.5%)
  • Snow11 (2%)
  • Flood over 3cm deep1 (0.2%)

Speed limit at the scene

  • 30 mph340 (63%)
  • 40 mph28 (5.1%)
  • 50 mph8 (1.5%)
  • 60 mph85 (16%)
  • 70 mph83 (15%)

Type of road

  • Single carriageway408 (75%)
  • Dual carriageway92 (17%)
  • Roundabout31 (5.7%)
  • One way street or slip road10 (1.8%)
  • Not recorded3 (0.6%)

Source: Department for Transport, STATS19 road safety data

Who was hurt in road crashes in Hertsmere in 1986

Casualties by road user

  • Car occupant400 (59%)
  • Motorcyclist94 (14%)
  • Pedestrian88 (13%)
  • Cyclist47 (6.9%)
  • Van occupant35 (5.1%)
  • Goods vehicle occupant (over 3.5 tonnes)14 (2%)
  • Bus or coach occupant4 (0.6%)
  • Minibus occupant1 (0.1%)

Casualties by age

  • 0 to 512 (1.8%)
  • 6 to 1023 (3.4%)
  • 11 to 1527 (4%)
  • 16 to 20135 (20%)
  • 21 to 25111 (16%)
  • 26 to 35111 (16%)
  • 36 to 4574 (11%)
  • 46 to 5557 (8.3%)
  • 56 to 6531 (4.5%)
  • 66 to 7540 (5.9%)
  • Over 7516 (2.3%)
  • Not recorded46 (6.7%)

Drivers, passengers and pedestrians

  • Driver or rider416 (61%)
  • Passenger179 (26%)
  • Pedestrian88 (13%)

Vehicles involved

  • Car693 (73%)
  • Motorcycle94 (9.9%)
  • Van or goods vehicle up to 3.5 tonnes62 (6.5%)
  • Pedal cycle49 (5.1%)
  • Goods vehicle over 3.5 tonnes41 (4.3%)
  • Bus or coach8 (0.8%)
  • Other vehicle4 (0.4%)
  • Minibus2 (0.2%)

Source: Department for Transport, STATS19 road safety data

Crash map for Hertsmere in 1986

Map of the last 24 crashes of 1986 in Hertsmere

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

  • 24 crashes
  • Fatal
  • Serious
  • Slight

How Hertsmere ranked among 350 areas in 1986

Of the 350 areas in England, Scotland and Wales, Hertsmere had the 169th most road collisions in 1986.

Collisions
169th
highest of 350 areas
Casualties
180th
of 350 areas, highest first
Fatal collisions
192nd
of 350 areas, highest first
Serious collisions
254th
of 350 areas, highest first

Roads in Hertsmere with the most crashes in 1986

The A411 had the most collisions in Hertsmere in 1986: 52, including 1 fatal and 12 serious.

Roads ranked by collisions in Hertsmere, 1986
RankRoadCollisionsCasualtiesFatalSerious
1stA4115270112
2ndA5135384104
3rdM25354423
4thA5183313619
5thA41304106
6thA111293606
7thM1284015
8thA1000242804
9thB5378222613
10thA6213622
11thA1192201
12thA4008161805
13thA4140101003
14thB46281001
15thA108151001
16thB1975601
17thA1(M)4501
18thB1564500
19thA10051100
20thA4091100

Towns in Hertsmere: crashes in 1986

Borehamwood had the most collisions of any town in Hertsmere in 1986: 91.

Postcode districts in Hertsmere: crashes in 1986

WD6 had the most collisions of any postcode district in Hertsmere in 1986: 146.

Latest crashes in Hertsmere in 1986

Of the last 24 crashes in Hertsmere in 1986, 1 was fatal and 2 were serious. The last was on 29 December 1986.

Severity

Hertsmere road accidents in other years