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CrashStats

Chiltern road accidents in 2025: crash map and statistics

Police recorded 74 road traffic collisions in Chiltern in 2025, and 81 people were killed or injured in them. Of those collisions, 2 were fatal and 16 were serious.

Collisions were up 1% on 2024 (73), and casualties fell from 92.

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 2025
74
Up 1% on 2024
Casualties in 2025
81
Down 12% on 2024
Fatal collisions
2
2.7% of collisions
Serious collisions
16
22% of collisions

Crash severity in Chiltern in 2025

2.7% of collisions in Chiltern in 2025 were fatal and 22% serious, against 1.8% and 20% in Chiltern from 1979 to 2025.

Collisions by worst injury

  • Fatal22.7%
  • Serious1622%
  • Slight5676%

People hurt, by injury

  • Fatal22.5%
  • Serious1620%
  • Slight6378%

Chiltern road accidents by year

Collisions and casualties in Chiltern, 1979 to 2025

Collisions peaked at 400 in 1984. 2025 is highlighted, with 74, up 1% on 2024.

  • Collisions
  • Collisions in 2025: 74
  • 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 2025

Collisions by day of the week

  • Monday13 (18%)
  • Tuesday13 (18%)
  • Wednesday10 (14%)
  • Thursday10 (14%)
  • Friday11 (15%)
  • Saturday10 (14%)
  • Sunday7 (9.5%)

Collisions by time of day

  • 00:00 to 02:594 (5.4%)
  • 03:00 to 05:592 (2.7%)
  • 06:00 to 08:5910 (14%)
  • 09:00 to 11:5916 (22%)
  • 12:00 to 14:5910 (14%)
  • 15:00 to 17:5916 (22%)
  • 18:00 to 20:5912 (16%)
  • 21:00 to 23:594 (5.4%)

Collisions by month

  • January4 (5.4%)
  • February5 (6.8%)
  • March6 (8.1%)
  • April9 (12%)
  • May2 (2.7%)
  • June7 (9.5%)
  • July7 (9.5%)
  • August7 (9.5%)
  • September4 (5.4%)
  • October5 (6.8%)
  • November6 (8.1%)
  • December12 (16%)

Light conditions

  • Daylight50 (68%)
  • Dark, street lights lit14 (19%)
  • Dark, no street lighting9 (12%)
  • Dark, lighting unknown1 (1.4%)

Weather at the time

  • Fine, no high winds63 (85%)
  • Raining, no high winds7 (9.5%)
  • Raining with high winds2 (2.7%)
  • Fog or mist1 (1.4%)
  • Other1 (1.4%)

Road surface

  • Dry55 (74%)
  • Wet or damp17 (23%)
  • Frost or ice2 (2.7%)

Speed limit at the scene

  • 30 mph41 (55%)
  • 40 mph9 (12%)
  • 50 mph8 (11%)
  • 60 mph13 (18%)
  • 70 mph3 (4.1%)

Type of road

  • Single carriageway64 (86%)
  • Roundabout9 (12%)
  • Dual carriageway1 (1.4%)

Source: Department for Transport, STATS19 road safety data

Who was hurt in road crashes in Chiltern in 2025

Casualties by road user

  • Car occupant37 (46%)
  • Cyclist16 (20%)
  • Pedestrian15 (19%)
  • Motorcyclist11 (14%)
  • Van occupant2 (2.5%)

Casualties by age

  • 11 to 153 (3.7%)
  • 16 to 208 (9.9%)
  • 21 to 255 (6.2%)
  • 26 to 3513 (16%)
  • 36 to 4512 (15%)
  • 46 to 5513 (16%)
  • 56 to 6512 (15%)
  • 66 to 758 (9.9%)
  • Over 756 (7.4%)
  • Not recorded1 (1.2%)

Drivers, passengers and pedestrians

  • Driver or rider55 (68%)
  • Pedestrian15 (19%)
  • Passenger11 (14%)

Vehicles involved

  • Car79 (63%)
  • Pedal cycle16 (13%)
  • Motorcycle11 (8.8%)
  • Van or goods vehicle up to 3.5 tonnes10 (8%)
  • Goods vehicle over 3.5 tonnes3 (2.4%)
  • Agricultural vehicle2 (1.6%)
  • Other vehicle2 (1.6%)
  • Goods vehicle, weight unknown1 (0.8%)
  • Taxi or private hire car1 (0.8%)

Source: Department for Transport, STATS19 road safety data

Crash map for Chiltern in 2025

Map of the last 24 crashes of 2025 and the 10 busiest accident hotspots in Chiltern

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

  • 24 crashes
  • Fatal
  • Serious
  • Slight

Accident hotspots (10)

Accident hotspots in Chiltern in 2025

Amersham & Chesham Bois, Buckinghamshire, HP6 5AH area, Chalfont St Peter, Buckinghamshire, SL9 9FT area and Chesham South, Buckinghamshire, HP5 2HE area were among the busiest accident hotspots in Chiltern in 2025, with 6 collisions each.

Roads in Chiltern with the most crashes in 2025

The A416 had the most collisions in Chiltern in 2025: 11.

Roads ranked by collisions in Chiltern, 2025
RankRoadCollisionsCasualtiesFatalSerious
1stA416111200
2ndA413101200
3rdA40481001
4thB4743302
5thA3552201
6thA402211
7thB45052201
8thB4852202
9thA41281110
10thA41541100
11thM251100

Towns in Chiltern: crashes in 2025

Amersham and Chesham had the most collisions of any town in Chiltern in 2025, with 12 each.

Postcode districts in Chiltern: crashes in 2025

HP5 had the most collisions of any postcode district in Chiltern in 2025: 18.

Buckinghamshire and its former districts in 2025

Buckinghamshire recorded 684 collisions in 2025, and 11% of them were in the old Chiltern district.

Other former districts in Buckinghamshire

Latest crashes in Chiltern in 2025

Of the last 24 crashes in Chiltern in 2025, 2 were fatal and 6 were serious. The last was on 25 December 2025.

Severity

Chiltern road accidents in other years