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CrashStats

B4427 accidents: crash map and statistics

Police recorded 217 collisions on the B4427 from 1979 to 2025, with 305 casualties. Of those crashes, 2 were fatal and 37 serious, and 2 people were killed.

In 2025 there were 3 collisions on the B4427, up from none in 2024, with 3 casualties.

Collisions since 1979
217
3,143rd highest of 4,923 roads
Casualties
305
1.41 per collision
Fatal collisions
2
2 people killed
Serious collisions
37
40 seriously injured
Collisions in 2025
3
Up from none in 2024
Casualties in 2025
3
Up from none in 2024

Crash severity on the B4427

On the B4427, 0.9% of collisions were fatal and 17% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal20.9%
  • Serious3717%
  • Slight17882%

Where the B4427 ranks among 4,923 roads

Most collisions
3,143rd
Most casualties
3,100th
Most fatal collisions
3,485th
Most serious collisions
3,385th

B4427 accidents by year

Collisions on the B4427 peaked at 15 in 2004 and were down to 3 in 2025.

Collisions and casualties on the B4427, 1979 to 2025

  • Collisions
  • Collisions in 2025: 3
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
202533
202400
202345
2022814
202100
202011
201924
201811
201733
201636
201544
201446
201311
201239
201134
201034
200978
2008710
2007811
20061215
200559
20041518
2003611
20021217
2001914
200033
19991320
1998914
199777
199644
199557
199422
199311
199234
199114
199056
198944
198844
198745
198666
198559
198411
198311
1982711
198137
198035
197922

When crashes happen on the B4427

Tuesday has the most collisions on the B4427 (37), and 3pm to 6pm is the busiest time of day (52).

Collisions by day of the week

  • Monday35 (16%)
  • Tuesday37 (17%)
  • Wednesday35 (16%)
  • Thursday37 (17%)
  • Friday35 (16%)
  • Saturday22 (10%)
  • Sunday16 (7.4%)

Collisions by time of day

  • Midnight to 3am8 (3.7%)
  • 3am to 6am1 (0.5%)
  • 6am to 9am47 (22%)
  • 9am to noon32 (15%)
  • Noon to 3pm36 (17%)
  • 3pm to 6pm52 (24%)
  • 6pm to 9pm25 (12%)
  • 9pm to midnight16 (7.4%)

Collisions by month

  • January17 (7.8%)
  • February15 (6.9%)
  • March19 (8.8%)
  • April16 (7.4%)
  • May15 (6.9%)
  • June19 (8.8%)
  • July18 (8.3%)
  • August21 (9.7%)
  • September14 (6.5%)
  • October23 (11%)
  • November24 (11%)
  • December16 (7.4%)

Light conditions at the time

  • Daylight168 (77%)
  • Dark, no street lighting38 (18%)
  • Dark, street lights lit10 (4.6%)
  • Dark, lighting unknown1 (0.5%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in B4427 crashes

On the B4427, 55% of collisions happened where the speed limit was 60 mph and 62% on a dry road surface.

Speed limit at the scene

  • 30 mph38 (18%)
  • 40 mph43 (20%)
  • 50 mph16 (7.4%)
  • 60 mph119 (55%)
  • 70 mph1 (0.5%)

Weather at the time

  • Fine, no high winds166 (76%)
  • Raining, no high winds33 (15%)
  • Fine with high winds2 (0.9%)
  • Fog or mist2 (0.9%)
  • Other12 (5.5%)
  • Not recorded2 (0.9%)

Road surface

  • Dry134 (62%)
  • Wet or damp67 (31%)
  • Frost or ice13 (6%)
  • Mud2 (0.9%)
  • Flood over 3cm deep1 (0.5%)

Type of road

  • Single carriageway212 (98%)
  • Dual carriageway3 (1.4%)
  • One way street or slip road1 (0.5%)
  • Not recorded1 (0.5%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in B4427 crashes

Car occupants make up 78% of the people killed or injured on the B4427, followed by motorcyclists (13%).

Casualties by road user

  • Car occupant237 (78%)
  • Motorcyclist39 (13%)
  • Cyclist13 (4.3%)
  • Van occupant8 (2.6%)
  • Pedestrian4 (1.3%)
  • Other vehicle occupant2 (0.7%)
  • Goods vehicle occupant (over 3.5 tonnes)1 (0.3%)
  • Taxi or private hire car occupant1 (0.3%)

Vehicles involved

  • Car331 (78%)
  • Motorcycle42 (9.9%)
  • Van or goods vehicle up to 3.5 tonnes20 (4.7%)
  • Pedal cycle12 (2.8%)
  • Goods vehicle over 3.5 tonnes7 (1.6%)
  • Other vehicle7 (1.6%)
  • Other6 (1.4%)
  • Not recorded1 (0.2%)

Casualties by age

  • 0 to 52 (0.7%)
  • 6 to 108 (2.6%)
  • 11 to 1516 (5.2%)
  • 16 to 2055 (18%)
  • 21 to 2535 (11%)
  • 26 to 3574 (24%)
  • 36 to 4536 (12%)
  • 46 to 5533 (11%)
  • 56 to 6528 (9.2%)
  • 66 to 7514 (4.6%)
  • Over 753 (1%)
  • Not recorded1 (0.3%)

Drivers, passengers and pedestrians

  • Driver or rider230 (75%)
  • Passenger71 (23%)
  • Pedestrian4 (1.3%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the B4427

Map of the 25 most recent crashes on the B4427

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

  • 25 crashes
  • Serious
  • Slight

B4427 crashes by council area

Of the 217 collisions on the B4427, 216 were in South Gloucestershire.

Collisions on the B4427 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stSouth Gloucestershire216304237

B4427 crashes by town

Collisions on the B4427 were recorded in 3 towns and built-up areas, led by Bradley Stoke (25) and Hambrook, South Gloucestershire (22).

Recent crashes on the B4427

These are the 25 most recent collisions on the B4427, from 30 March 2016 to 5 December 2025.

Severity