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CrashStats

Chiltern road accidents in 1986: crash map and statistics

Police recorded 359 road traffic collisions in Chiltern in 1986, and 476 people were killed or injured in them. Of those collisions, 6 were fatal and 85 were serious.

Collisions were up 3% on 1985 (350), and casualties fell from 502.

Across all years from 1979 to 2025, police recorded 10,784 collisions in Chiltern.

District council until April 2020, now part of Buckinghamshire. Figures follow the old district boundary.

Collisions in 1986
359
Up 3% on 1985
Casualties in 1986
476
Down 5% on 1985
Fatal collisions
6
1.7% of collisions
Serious collisions
85
24% of collisions

Crash severity in Chiltern in 1986

1.7% of collisions in Chiltern in 1986 were fatal and 24% serious, against 1.8% and 20% in Chiltern from 1979 to 2025.

Collisions by worst injury

  • Fatal61.7%
  • Serious8524%
  • Slight26875%

People hurt, by injury

  • Fatal71.5%
  • Serious9520%
  • Slight37479%

Chiltern road accidents by year

Collisions and casualties in Chiltern, 1979 to 2025

Collisions peaked at 400 in 1984. 1986 is highlighted, with 359, up 3% on 1985.

  • Collisions
  • Collisions in 1986
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
20257481
20247392
20238397
202284105
20217789
20207796
2019106134
2018113152
2017112144
2016119161
2015120156
2014139188
2013137199
2012159213
2011144189
2010159239
2009200278
2008190259
2007206273
2006240348
2005251362
2004245334
2003242315
2002256347
2001286392
2000298425
1999295392
1998314433
1997306409
1996303401
1995262380
1994284383
1993296409
1992319417
1991262365
1990304428
1989318431
1988354486
1987303397
1986359476
1985350502
1984400524
1983331430
1982363471
1981351476
1980195248
1979325443

When and where crashes happen in Chiltern in 1986

Collisions by day of the week

  • Monday52 (14%)
  • Tuesday56 (16%)
  • Wednesday55 (15%)
  • Thursday43 (12%)
  • Friday60 (17%)
  • Saturday47 (13%)
  • Sunday46 (13%)

Collisions by time of day

  • 00:00 to 02:5913 (3.6%)
  • 03:00 to 05:595 (1.4%)
  • 06:00 to 08:5956 (16%)
  • 09:00 to 11:5944 (12%)
  • 12:00 to 14:5947 (13%)
  • 15:00 to 17:5975 (21%)
  • 18:00 to 20:5967 (19%)
  • 21:00 to 23:5952 (14%)

Collisions by month

  • January27 (7.5%)
  • February23 (6.4%)
  • March31 (8.6%)
  • April21 (5.8%)
  • May38 (11%)
  • June26 (7.2%)
  • July26 (7.2%)
  • August17 (4.7%)
  • September28 (7.8%)
  • October37 (10%)
  • November42 (12%)
  • December43 (12%)

Light conditions

  • Daylight230 (64%)
  • Dark, street lights lit72 (20%)
  • Dark, no street lighting53 (15%)
  • Dark, lighting unknown3 (0.8%)
  • Not recorded1 (0.3%)

Weather at the time

  • Fine, no high winds267 (74%)
  • Raining, no high winds56 (16%)
  • Fine with high winds6 (1.7%)
  • Raining with high winds6 (1.7%)
  • Fog or mist5 (1.4%)
  • Snowing, no high winds5 (1.4%)
  • Other12 (3.3%)
  • Not recorded2 (0.6%)

Road surface

  • Dry191 (53%)
  • Wet or damp141 (39%)
  • Frost or ice24 (6.7%)
  • Snow2 (0.6%)
  • Not recorded1 (0.3%)

Speed limit at the scene

  • 30 mph197 (55%)
  • 40 mph33 (9.2%)
  • 50 mph9 (2.5%)
  • 60 mph116 (32%)
  • 70 mph4 (1.1%)

Type of road

  • Single carriageway322 (90%)
  • Roundabout17 (4.7%)
  • Dual carriageway13 (3.6%)
  • One way street or slip road7 (1.9%)

Source: Department for Transport, STATS19 road safety data

Who was hurt in road crashes in Chiltern in 1986

Casualties by road user

  • Car occupant272 (57%)
  • Motorcyclist91 (19%)
  • Pedestrian61 (13%)
  • Cyclist31 (6.5%)
  • Van occupant15 (3.2%)
  • Bus or coach occupant2 (0.4%)
  • Minibus occupant2 (0.4%)
  • Goods vehicle occupant (over 3.5 tonnes)1 (0.2%)
  • Other vehicle occupant1 (0.2%)

Casualties by age

  • 0 to 56 (1.3%)
  • 6 to 109 (1.9%)
  • 11 to 1533 (6.9%)
  • 16 to 20138 (29%)
  • 21 to 2572 (15%)
  • 26 to 3564 (13%)
  • 36 to 4554 (11%)
  • 46 to 5540 (8.4%)
  • 56 to 6527 (5.7%)
  • 66 to 7516 (3.4%)
  • Over 7516 (3.4%)
  • Not recorded1 (0.2%)

Drivers, passengers and pedestrians

  • Driver or rider317 (67%)
  • Passenger98 (21%)
  • Pedestrian61 (13%)

Vehicles involved

  • Car507 (72%)
  • Motorcycle94 (13%)
  • Van or goods vehicle up to 3.5 tonnes41 (5.8%)
  • Pedal cycle31 (4.4%)
  • Bus or coach8 (1.1%)
  • Goods vehicle over 3.5 tonnes7 (1%)
  • Other vehicle4 (0.6%)
  • Minibus3 (0.4%)
  • Not recorded14 (2%)

Source: Department for Transport, STATS19 road safety data

Crash map for Chiltern in 1986

Map of the last 24 crashes of 1986 in Chiltern

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

  • 24 crashes
  • Serious
  • Slight

Roads in Chiltern with the most crashes in 1986

The A413 had the most collisions in Chiltern in 1986: 56, including 1 fatal and 11 serious.

Roads ranked by collisions in Chiltern, 1986
RankRoadCollisionsCasualtiesFatalSerious
1stA4135682111
2ndA4165057117
3rdA404365008
4thA4128131504
5thB474121413
6thB444281102
7thB45058902
8thB4855820
9thA3554810
10thA41543701
11thB4162200
12thM252200
13thA401101
14thB44411100
15thB4891201

Towns in Chiltern: crashes in 1986

Amersham and Chesham had the most collisions of any town in Chiltern in 1986, with 62 each.

Postcode districts in Chiltern: crashes in 1986

HP5 had the most collisions of any postcode district in Chiltern in 1986: 96.

Buckinghamshire and its former districts in 1986

Buckinghamshire recorded 2,117 collisions in 1986, and 17% of them were in the old Chiltern district.

Other former districts in Buckinghamshire

Latest crashes in Chiltern in 1986

Of the last 24 crashes in Chiltern in 1986, none were fatal and 8 were serious. The last was on 31 December 1986.

Severity

Chiltern road accidents in other years