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CrashStats

A4171 accidents: crash map and statistics

Police recorded 193 collisions on the A4171 from 1979 to 2025, with 236 casualties. Of those crashes, 1 was fatal and 40 serious, and 1 person was killed.

In 2025 there were 3 collisions on the A4171, up 200% from 1 in 2024, with 3 casualties.

Collisions since 1979
193
3,280th highest of 4,923 roads
Casualties
236
1.22 per collision
Fatal collisions
1
1 person killed
Serious collisions
40
44 seriously injured
Collisions in 2025
3
Up 200% on 2024
Casualties in 2025
3
Up 200% on 2024

Crash severity on the A4171

On the A4171, 0.5% of collisions were fatal and 21% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal10.5%
  • Serious4021%
  • Slight15279%

Where the A4171 ranks among 4,923 roads

Most collisions
3,280th
Most casualties
3,421st
Most fatal collisions
3,933rd
Most serious collisions
3,266th

A4171 accidents by year

Collisions on the A4171 peaked at 13 in 1980 and were down to 3 in 2025.

Collisions and casualties on the A4171, 1979 to 2025

  • Collisions
  • Collisions in 2025: 3
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
202533
202411
202322
202233
202100
202011
201900
201800
201700
201600
201534
201433
201311
201233
201134
201025
200945
200833
200746
200622
2005712
200489
2003911
200277
2001710
200044
199967
199845
199777
199656
199558
199467
199347
199222
199133
199022
198956
198856
1987710
198679
198511
198455
198378
198266
1981711
19801315
197966

When crashes happen on the A4171

Wednesday has the most collisions on the A4171 (35), and 3pm to 6pm is the busiest time of day (58).

Collisions by day of the week

  • Monday28 (15%)
  • Tuesday28 (15%)
  • Wednesday35 (18%)
  • Thursday32 (17%)
  • Friday24 (12%)
  • Saturday29 (15%)
  • Sunday17 (8.8%)

Collisions by time of day

  • Midnight to 3am3 (1.6%)
  • 3am to 6am3 (1.6%)
  • 6am to 9am32 (17%)
  • 9am to noon20 (10%)
  • Noon to 3pm31 (16%)
  • 3pm to 6pm58 (30%)
  • 6pm to 9pm30 (16%)
  • 9pm to midnight16 (8.3%)

Collisions by month

  • January17 (8.8%)
  • February14 (7.3%)
  • March17 (8.8%)
  • April12 (6.2%)
  • May15 (7.8%)
  • June14 (7.3%)
  • July20 (10%)
  • August8 (4.1%)
  • September18 (9.3%)
  • October19 (9.8%)
  • November24 (12%)
  • December15 (7.8%)

Light conditions at the time

  • Daylight143 (74%)
  • Dark, street lights lit45 (23%)
  • Dark, street lights unlit3 (1.6%)
  • Dark, lighting unknown1 (0.5%)
  • Dark, no street lighting1 (0.5%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in A4171 crashes

On the A4171, 98% of collisions happened where the speed limit was 30 mph and 70% on a dry road surface.

Speed limit at the scene

  • 20 mph1 (0.5%)
  • 30 mph190 (98%)
  • 40 mph2 (1%)

Weather at the time

  • Fine, no high winds162 (84%)
  • Raining, no high winds23 (12%)
  • Fine with high winds1 (0.5%)
  • Raining with high winds1 (0.5%)
  • Other5 (2.6%)
  • Not recorded1 (0.5%)

Road surface

  • Dry136 (70%)
  • Wet or damp49 (25%)
  • Frost or ice8 (4.1%)

Type of road

  • Single carriageway164 (85%)
  • Roundabout28 (15%)
  • Dual carriageway1 (0.5%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in A4171 crashes

Car occupants make up 40% of the people killed or injured on the A4171, followed by pedestrians (25%).

Casualties by road user

  • Car occupant95 (40%)
  • Pedestrian59 (25%)
  • Motorcyclist46 (19%)
  • Cyclist27 (11%)
  • Bus or coach occupant6 (2.5%)
  • Goods vehicle occupant (over 3.5 tonnes)2 (0.8%)
  • Taxi or private hire car occupant1 (0.4%)

Vehicles involved

  • Car218 (69%)
  • Motorcycle46 (14%)
  • Pedal cycle27 (8.5%)
  • Bus or coach9 (2.8%)
  • Van or goods vehicle up to 3.5 tonnes8 (2.5%)
  • Goods vehicle over 3.5 tonnes6 (1.9%)
  • Other vehicle2 (0.6%)
  • Taxi or private hire car2 (0.6%)

Casualties by age

  • 0 to 53 (1.3%)
  • 6 to 1010 (4.2%)
  • 11 to 1532 (14%)
  • 16 to 2079 (33%)
  • 21 to 2518 (7.6%)
  • 26 to 3528 (12%)
  • 36 to 4523 (9.7%)
  • 46 to 5518 (7.6%)
  • 56 to 657 (3%)
  • 66 to 759 (3.8%)
  • Over 758 (3.4%)
  • Not recorded1 (0.4%)

Drivers, passengers and pedestrians

  • Driver or rider132 (56%)
  • Pedestrian59 (25%)
  • Passenger45 (19%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the A4171

Map of the 25 most recent crashes on the A4171

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

  • 25 crashes
  • Serious
  • Slight

A4171 crashes by council area

Of the 193 collisions on the A4171, 192 were in Stroud.

Collisions on the A4171 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stStroud192235140

A4171 crashes by town

Of the 193 collisions on the A4171, 159 were in the built-up area of Stroud.

Recent crashes on the A4171

These are the 25 most recent collisions on the A4171, from 27 July 2010 to 12 December 2025.

Severity