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CrashStats

HP5 road accidents: crash map and statistics

Police recorded 2,881 road traffic collisions in the HP5 postcode district, Buckinghamshire, from 1979 to 2025, and 3,674 people were killed or injured in them. Of those collisions, 38 were fatal and 584 were serious.

In 2025 police recorded 20 collisions, down 23% on 2024 (26).

Collisions since 1979
2,881
1,357th highest of 2,813 postcode districts
Casualties
3,674
1.28 per collision
Fatal collisions
38
39 people killed
Serious collisions
584
663 seriously injured
Collisions in 2025
20
Down 23% on 2024
Casualties in 2025
23
Down 30% on 2024

Road collision statistics for HP5

Collisions by severity, 1979 to 2025

  • Fatal381.3%
  • Serious58420%
  • Slight2,25978%

What the data shows

  • HP5 had 248 collisions from 2016 to 2025, 44% fewer than the 442 from 2006 to 2015.
  • 22% of collisions in HP5 were fatal or serious, against 20% across Great Britain.
  • 453 children under 16 were killed or injured in HP5, 13% of the casualties whose age was recorded.
  • The road surface was wet, icy, snowy or flooded in 38% of collisions in HP5.

Where HP5 ranks among 2,813 postcode districts

Most collisions
1,357th
Most casualties
1,423rd
Most fatal collisions
1,575th
Most serious collisions
1,252nd

Collisions by day of the week

  • Monday412 (14%)
  • Tuesday405 (14%)
  • Wednesday428 (15%)
  • Thursday458 (16%)
  • Friday473 (16%)
  • Saturday410 (14%)
  • Sunday295 (10%)

Light conditions

  • Daylight2,058 (71%)
  • Dark, street lights lit483 (17%)
  • Dark, no street lighting285 (9.9%)
  • Dark, lighting unknown42 (1.5%)
  • Dark, street lights unlit12 (0.4%)
  • Not recorded1 (under 0.1%)

Type of road

  • Single carriageway2,512 (87%)
  • Roundabout153 (5.3%)
  • One way street or slip road120 (4.2%)
  • Dual carriageway85 (3%)
  • Not recorded11 (0.4%)

Speed limit at the scene

  • 20 mph2 (0.1%)
  • 30 mph1,869 (65%)
  • 40 mph134 (4.7%)
  • 50 mph9 (0.3%)
  • 60 mph859 (30%)
  • 70 mph5 (0.2%)
  • Not recorded3 (0.1%)

Weather at the time

  • Fine, no high winds2,257 (78%)
  • Raining, no high winds393 (14%)
  • Fine with high winds35 (1.2%)
  • Raining with high winds30 (1%)
  • Fog or mist22 (0.8%)
  • Snowing, no high winds12 (0.4%)
  • Snowing with high winds8 (0.3%)
  • Other94 (3.3%)
  • Not recorded30 (1%)

Who was hurt

  • Car occupant2,080 (57%)
  • Pedestrian600 (16%)
  • Motorcyclist505 (14%)
  • Cyclist295 (8%)
  • Van occupant108 (2.9%)
  • Goods vehicle occupant (over 3.5 tonnes)19 (0.5%)
  • Taxi or private hire car occupant19 (0.5%)
  • Bus or coach occupant15 (0.4%)
  • Other vehicle occupant12 (0.3%)
  • Minibus occupant9 (0.2%)
  • Other11 (0.3%)
  • Not recorded1 (under 0.1%)

Source: Department for Transport, STATS19 road safety data

HP5 road accidents by year

Collisions and casualties in HP5, 1979 to 2025

Collisions in HP5 peaked at 107 in 1984; 2025 had 20.

  • Collisions
  • Collisions in 2025: 20
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
20252023
20242633
20232022
20223139
20212734
20201718
20192227
20182734
20173343
20162531
20153544
20143439
20134360
20123554
20114045
20104360
20094761
20086177
20074559
20065978
20056490
20046786
20037394
20025669
20016889
20006285
19997799
19988196
199786101
199697124
19956494
19947595
199384112
19928192
19915875
199090115
198988111
198890117
198795122
198699123
198583116
1984107135
198392106
1982106127
198190120
19805769
1979101131

Map of recent crashes in HP5

Map of the 24 most recent crashes in HP5

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

  • 24 crashes
  • Serious
  • Slight

Recent road crashes in HP5

The 24 most recent collisions in HP5 happened between 31 October 2024 and 25 December 2025.

Severity

Crashes by road in HP5

The A416 has the most collisions in HP5, 912 of 2,881 (32%), followed by the B4505 (184).

Collisions in HP5 on each road, 1979 to 2025
RankRoadCollisionsCasualtiesFatalSerious
1stA4169121,07111198
2ndB4505184242440
3rdB48590126625
4thA415601

Council areas covering HP5

Collisions in HP5 were recorded in 4 council areas. Buckinghamshire has 2,827 of 2,881 (98%).

Collisions in HP5 by council area, 1979 to 2025
RankCouncil areaCollisionsCasualtiesFatalSerious
1stBuckinghamshire2,8273,60036573
2ndDacorum375008
3rdLuton91301
4thCentral Bedfordshire6922

Towns in HP5

Collisions in HP5 were recorded in 2 towns, led by Chesham (1,684) and Amersham (51).