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CrashStats

SL8 road accidents: crash map and statistics

Police recorded 706 road traffic collisions in the SL8 postcode district, Buckinghamshire, from 1979 to 2025, and 917 people were killed or injured in them. Of those collisions, 9 were fatal and 112 were serious.

In 2025 police recorded 10 collisions, up from 4 in 2024.

Collisions since 1979
706
2,322nd of 2,813 postcode districts, highest first
Casualties
917
1.30 per collision
Fatal collisions
9
9 people killed
Serious collisions
112
129 seriously injured
Collisions in 2025
10
4 in 2024
Casualties in 2025
11
4 in 2024

Road collision statistics for SL8

Collisions by severity, 1979 to 2025

  • Fatal91.3%
  • Serious11216%
  • Slight58583%

What the data shows

  • SL8 had 65 collisions from 2016 to 2025, 46% fewer than the 120 from 2006 to 2015.
  • 17% of collisions in SL8 were fatal or serious, against 20% across Great Britain.
  • 100 children under 16 were killed or injured in SL8, 11% of the casualties whose age was recorded.
  • The road surface was wet, icy, snowy or flooded in 29% of collisions in SL8.

Where SL8 ranks among 2,813 postcode districts

Most collisions
2,322nd
Most casualties
2,347th
Most fatal collisions
2,449th
Most serious collisions
2,431st

Collisions by day of the week

  • Monday112 (16%)
  • Tuesday86 (12%)
  • Wednesday95 (13%)
  • Thursday110 (16%)
  • Friday120 (17%)
  • Saturday96 (14%)
  • Sunday87 (12%)

Light conditions

  • Daylight518 (73%)
  • Dark, street lights lit132 (19%)
  • Dark, no street lighting38 (5.4%)
  • Dark, lighting unknown14 (2%)
  • Dark, street lights unlit4 (0.6%)

Type of road

  • Single carriageway670 (95%)
  • Roundabout26 (3.7%)
  • Dual carriageway5 (0.7%)
  • One way street or slip road2 (0.3%)
  • Not recorded3 (0.4%)

Speed limit at the scene

  • 20 mph2 (0.3%)
  • 30 mph585 (83%)
  • 40 mph10 (1.4%)
  • 50 mph2 (0.3%)
  • 60 mph106 (15%)
  • Not recorded1 (0.1%)

Weather at the time

  • Fine, no high winds588 (83%)
  • Raining, no high winds66 (9.3%)
  • Raining with high winds9 (1.3%)
  • Fine with high winds8 (1.1%)
  • Fog or mist5 (0.7%)
  • Snowing, no high winds2 (0.3%)
  • Snowing with high winds1 (0.1%)
  • Other21 (3%)
  • Not recorded6 (0.8%)

Who was hurt

  • Car occupant525 (57%)
  • Motorcyclist131 (14%)
  • Cyclist126 (14%)
  • Pedestrian110 (12%)
  • Van occupant18 (2%)
  • Goods vehicle occupant (over 3.5 tonnes)4 (0.4%)
  • Minibus occupant1 (0.1%)
  • Other vehicle occupant1 (0.1%)
  • Taxi or private hire car occupant1 (0.1%)

Source: Department for Transport, STATS19 road safety data

SL8 road accidents by year

Collisions and casualties in SL8, 1979 to 2025

Collisions in SL8 peaked at 29 in 1982; 2025 had 10.

  • Collisions
  • Collisions in 2025: 10
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
20251011
202444
202344
202245
202133
202099
201933
2018710
2017910
20161218
20151320
20141111
20131315
20121417
20111214
20101318
200956
20081111
20071922
200699
2005710
20041217
20031011
20021416
20011722
20001624
19991926
19982021
19972129
19962534
19951620
19942835
19931722
19922027
19912230
19901523
19892227
19882125
19872125
19862434
19852227
19842634
19832732
19822947
19811934
19801017
19792128

Map of recent crashes in SL8

Map of the 24 most recent crashes in SL8

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

  • 24 crashes
  • Serious
  • Slight

Recent road crashes in SL8

The 24 most recent collisions in SL8 happened between 11 May 2021 and 24 December 2025.

Severity

Crashes by road in SL8

The A4155 has the most collisions in SL8, 253 of 706 (36%), followed by the A4094 (249).

Collisions in SL8 on each road, 1979 to 2025
RankRoadCollisionsCasualtiesFatalSerious
1stA4155253309433
2ndA4094249332340

Council area for SL8

SL8 is in Buckinghamshire, where police recorded 72,942 collisions from 1979 to 2025. SL8 accounts for 1% of them.

Town in SL8

Of the 706 collisions in SL8, 583 (83%) were in Bourne End and Flackwell Heath.