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CrashStats

Slough road accidents in 2021: crash map and statistics

Police recorded 219 road traffic collisions in Slough in 2021, and 260 people were killed or injured in them. Of those collisions, 6 were fatal and 30 were serious.

Collisions were up 10% on 2020 (200), and casualties rose from 249.

Across all years from 1979 to 2025, police recorded 20,313 collisions in Slough.

Collisions in 2021
219
Up 10% on 2020
Casualties in 2021
260
Up 4% on 2020
Fatal collisions
6
2.7% of collisions
Serious collisions
30
14% of collisions

Crash severity in Slough in 2021

2.7% of collisions in Slough in 2021 were fatal and 14% serious, against 1.1% and 13% in Slough from 1979 to 2025.

Collisions by worst injury

  • Fatal62.7%
  • Serious3014%
  • Slight18384%

People hurt, by injury

  • Fatal62.3%
  • Serious3012%
  • Slight22486%

Slough road accidents by year

Collisions and casualties in Slough, 1979 to 2025

Collisions peaked at 567 in 1984. 2021 is highlighted, with 219, up 10% on 2020.

  • Collisions
  • Collisions in 2021: 219
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
2025229276
2024209235
2023237279
2022235290
2021219260
2020200249
2019275331
2018285366
2017353473
2016416549
2015465627
2014433615
2013398578
2012414580
2011433596
2010452619
2009421572
2008459602
2007457602
2006451627
2005476594
2004441552
2003503668
2002537671
2001529702
2000513654
1999488651
1998520652
1997504673
1996489618
1995489629
1994452564
1993422531
1992411518
1991437544
1990449607
1989501632
1988514655
1987542666
1986525650
1985494609
1984567709
1983558685
1982488611
1981479586
1980445557
1979499666

When and where crashes happen in Slough in 2021

Collisions by day of the week

  • Monday35 (16%)
  • Tuesday41 (19%)
  • Wednesday33 (15%)
  • Thursday32 (15%)
  • Friday33 (15%)
  • Saturday24 (11%)
  • Sunday21 (9.6%)

Collisions by time of day

  • 00:00 to 02:594 (1.8%)
  • 03:00 to 05:593 (1.4%)
  • 06:00 to 08:5928 (13%)
  • 09:00 to 11:5925 (11%)
  • 12:00 to 14:5935 (16%)
  • 15:00 to 17:5960 (27%)
  • 18:00 to 20:5942 (19%)
  • 21:00 to 23:5922 (10%)

Collisions by month

  • January7 (3.2%)
  • February6 (2.7%)
  • March22 (10%)
  • April21 (9.6%)
  • May28 (13%)
  • June21 (9.6%)
  • July17 (7.8%)
  • August13 (5.9%)
  • September25 (11%)
  • October21 (9.6%)
  • November18 (8.2%)
  • December20 (9.1%)

Light conditions

  • Daylight159 (73%)
  • Dark, street lights lit54 (25%)
  • Dark, no street lighting3 (1.4%)
  • Dark, street lights unlit2 (0.9%)
  • Dark, lighting unknown1 (0.5%)

Weather at the time

  • Fine, no high winds193 (88%)
  • Raining, no high winds25 (11%)
  • Fine with high winds1 (0.5%)

Road surface

  • Dry170 (78%)
  • Wet or damp47 (21%)
  • Frost or ice2 (0.9%)

Speed limit at the scene

  • 20 mph6 (2.7%)
  • 30 mph169 (77%)
  • 40 mph30 (14%)
  • 50 mph10 (4.6%)
  • 60 mph2 (0.9%)
  • 70 mph2 (0.9%)

Type of road

  • Single carriageway161 (74%)
  • Dual carriageway39 (18%)
  • One way street or slip road10 (4.6%)
  • Roundabout9 (4.1%)

Source: Department for Transport, STATS19 road safety data

Who was hurt in road crashes in Slough in 2021

Casualties by road user

  • Car occupant137 (53%)
  • Pedestrian50 (19%)
  • Motorcyclist30 (12%)
  • Cyclist26 (10%)
  • Van occupant8 (3.1%)
  • Taxi or private hire car occupant4 (1.5%)
  • Not recorded5 (1.9%)

Casualties by age

  • 0 to 55 (1.9%)
  • 6 to 108 (3.1%)
  • 11 to 1519 (7.3%)
  • 16 to 2030 (12%)
  • 21 to 2531 (12%)
  • 26 to 3560 (23%)
  • 36 to 4553 (20%)
  • 46 to 5521 (8.1%)
  • 56 to 6510 (3.8%)
  • 66 to 7512 (4.6%)
  • Over 757 (2.7%)
  • Not recorded4 (1.5%)

Drivers, passengers and pedestrians

  • Driver or rider174 (67%)
  • Pedestrian50 (19%)
  • Passenger36 (14%)

Vehicles involved

  • Car299 (72%)
  • Motorcycle34 (8.2%)
  • Pedal cycle27 (6.5%)
  • Van or goods vehicle up to 3.5 tonnes18 (4.3%)
  • Goods vehicle over 3.5 tonnes16 (3.9%)
  • Taxi or private hire car12 (2.9%)
  • Personal powered transporter (e-scooter or similar)7 (1.7%)
  • Goods vehicle, weight unknown1 (0.2%)
  • Minibus1 (0.2%)

Source: Department for Transport, STATS19 road safety data

Crash map for Slough in 2021

Map of the last 24 crashes of 2021 and the 10 busiest accident hotspots in Slough

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

  • 24 crashes
  • Fatal
  • Serious
  • Slight

Accident hotspots (10)

How Slough ranked among 350 areas in 2021

Of the 350 areas in England, Scotland and Wales, Slough had the 158th most road collisions in 2021.

Collisions
158th
highest of 350 areas
Casualties
180th
of 350 areas, highest first
Fatal collisions
60th
highest of 350 areas
Serious collisions
274th
of 350 areas, highest first

Accident hotspots in Slough in 2021

Slough Central, Slough, SL1 1DL area was the busiest accident hotspot in Slough in 2021, with 34 collisions, 3 of them serious.

Roads in Slough with the most crashes in 2021

The A4 had the most collisions in Slough in 2021: 57, including 3 fatal and 10 serious.

Roads ranked by collisions in Slough, 2021
RankRoadCollisionsCasualtiesFatalSerious
1stA45763310
2ndA355212301
3rdM4162610
4thA4127702
5thA3324500
6thB4163300
7thB4702202
8thB30271100

Towns in Slough: crashes in 2021

Slough itself had the most collisions of any town in the area in 2021: 187.

Postcode districts in Slough: crashes in 2021

SL1 had the most collisions of any postcode district in Slough in 2021: 133.

Latest crashes in Slough in 2021

Of the last 24 crashes in Slough in 2021, 2 were fatal and 2 were serious. The last was on 31 December 2021.

Severity

Slough road accidents in other years