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CrashStats

Chiltern road accidents in 1985: crash map and statistics

Police recorded 350 road traffic collisions in Chiltern in 1985, and 502 people were killed or injured in them. Of those collisions, 7 were fatal and 82 were serious.

Collisions were down 13% on 1984 (400), and casualties fell from 524.

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 1985
350
Down 13% on 1984
Casualties in 1985
502
Down 4% on 1984
Fatal collisions
7
2% of collisions
Serious collisions
82
23% of collisions

Crash severity in Chiltern in 1985

2% of collisions in Chiltern in 1985 were fatal and 23% serious, against 1.8% and 20% in Chiltern from 1979 to 2025.

Collisions by worst injury

  • Fatal72%
  • Serious8223%
  • Slight26175%

People hurt, by injury

  • Fatal81.6%
  • Serious10220%
  • Slight39278%

Chiltern road accidents by year

Collisions and casualties in Chiltern, 1979 to 2025

Collisions peaked at 400 in 1984. 1985 is highlighted, with 350, down 13% on 1984.

  • Collisions
  • Collisions in 1985
  • 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 1985

Collisions by day of the week

  • Monday36 (10%)
  • Tuesday45 (13%)
  • Wednesday42 (12%)
  • Thursday60 (17%)
  • Friday75 (21%)
  • Saturday52 (15%)
  • Sunday40 (11%)

Collisions by time of day

  • 00:00 to 02:599 (2.6%)
  • 03:00 to 05:593 (0.9%)
  • 06:00 to 08:5963 (18%)
  • 09:00 to 11:5940 (11%)
  • 12:00 to 14:5943 (12%)
  • 15:00 to 17:5990 (26%)
  • 18:00 to 20:5950 (14%)
  • 21:00 to 23:5952 (15%)

Collisions by month

  • January22 (6.3%)
  • February25 (7.1%)
  • March38 (11%)
  • April19 (5.4%)
  • May26 (7.4%)
  • June22 (6.3%)
  • July28 (8%)
  • August32 (9.1%)
  • September27 (7.7%)
  • October36 (10%)
  • November43 (12%)
  • December32 (9.1%)

Light conditions

  • Daylight226 (65%)
  • Dark, street lights lit72 (21%)
  • Dark, no street lighting45 (13%)
  • Dark, lighting unknown5 (1.4%)
  • Dark, street lights unlit1 (0.3%)
  • Not recorded1 (0.3%)

Weather at the time

  • Fine, no high winds272 (78%)
  • Raining, no high winds50 (14%)
  • Fine with high winds5 (1.4%)
  • Fog or mist3 (0.9%)
  • Raining with high winds3 (0.9%)
  • Snowing, no high winds2 (0.6%)
  • Other13 (3.7%)
  • Not recorded2 (0.6%)

Road surface

  • Dry212 (61%)
  • Wet or damp125 (36%)
  • Frost or ice10 (2.9%)
  • Snow3 (0.9%)

Speed limit at the scene

  • 30 mph177 (51%)
  • 40 mph42 (12%)
  • 50 mph10 (2.9%)
  • 60 mph114 (33%)
  • 70 mph7 (2%)

Type of road

  • Single carriageway314 (90%)
  • Roundabout17 (4.9%)
  • Dual carriageway12 (3.4%)
  • One way street or slip road7 (2%)

Source: Department for Transport, STATS19 road safety data

Who was hurt in road crashes in Chiltern in 1985

Casualties by road user

  • Car occupant273 (54%)
  • Motorcyclist91 (18%)
  • Pedestrian52 (10%)
  • Cyclist29 (5.8%)
  • Van occupant26 (5.2%)
  • Bus or coach occupant25 (5%)
  • Other vehicle occupant4 (0.8%)
  • Goods vehicle occupant (over 3.5 tonnes)2 (0.4%)

Casualties by age

  • 0 to 58 (1.6%)
  • 6 to 1014 (2.8%)
  • 11 to 1526 (5.2%)
  • 16 to 20165 (33%)
  • 21 to 2577 (15%)
  • 26 to 3575 (15%)
  • 36 to 4548 (9.6%)
  • 46 to 5534 (6.8%)
  • 56 to 6528 (5.6%)
  • 66 to 7510 (2%)
  • Over 7514 (2.8%)
  • Not recorded3 (0.6%)

Drivers, passengers and pedestrians

  • Driver or rider312 (62%)
  • Passenger138 (27%)
  • Pedestrian52 (10%)

Vehicles involved

  • Car483 (69%)
  • Motorcycle91 (13%)
  • Van or goods vehicle up to 3.5 tonnes55 (7.8%)
  • Pedal cycle31 (4.4%)
  • Goods vehicle over 3.5 tonnes19 (2.7%)
  • Bus or coach12 (1.7%)
  • Other vehicle9 (1.3%)
  • Not recorded3 (0.4%)

Source: Department for Transport, STATS19 road safety data

Crash map for Chiltern in 1985

Map of the last 24 crashes of 1985 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 1985

The A413 had the most collisions in Chiltern in 1985: 51, including 17 serious.

Roads ranked by collisions in Chiltern, 1985
RankRoadCollisionsCasualtiesFatalSerious
1stA41351100017
2ndA416465529
3rdA404365127
4thA4128101303
5thB474101201
6thB44427801
7thA41546801
8thB45056802
9thA35551010
10thA403701
11thB44413300
12thB4853701
13thM252400
14thB4161100

Towns in Chiltern: crashes in 1985

Amersham had the most collisions of any town in Chiltern in 1985: 62.

Postcode districts in Chiltern: crashes in 1985

HP5 had the most collisions of any postcode district in Chiltern in 1985: 82.

Buckinghamshire and its former districts in 1985

Buckinghamshire recorded 2,091 collisions in 1985, and 17% of them were in the old Chiltern district.

Other former districts in Buckinghamshire

Latest crashes in Chiltern in 1985

Of the last 24 crashes in Chiltern in 1985, none were fatal and 7 were serious. The last was on 29 December 1985.

Severity

Chiltern road accidents in other years