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CrashStats

B4015 accidents: crash map and statistics

Police recorded 178 collisions on the B4015 from 1979 to 2025, with 254 casualties. Of those crashes, 5 were fatal and 48 serious, and 8 people were killed.

In 2025 there was 1 collision on the B4015, down 50% from 2 in 2024, with 1 casualty.

Collisions since 1979
178
3,393rd highest of 4,923 roads
Casualties
254
1.43 per collision
Fatal collisions
5
8 people killed
Serious collisions
48
63 seriously injured
Collisions in 2025
1
Down 50% on 2024
Casualties in 2025
1
Down 50% on 2024

Crash severity on the B4015

On the B4015, 2.8% of collisions were fatal and 27% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal52.8%
  • Serious4827%
  • Slight12570%

Where the B4015 ranks among 4,923 roads

Most collisions
3,393rd
Most casualties
3,329th
Most fatal collisions
2,545th
Most serious collisions
3,024th

B4015 accidents by year

Collisions on the B4015 peaked at 11 in 2011 and were down to 1 in 2025.

Collisions and casualties on the B4015, 1979 to 2025

  • Collisions
  • Collisions in 2025: 1
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
202511
202422
202311
202233
202111
202024
201924
201845
2017511
201634
201511
201456
201357
201259
20111114
201047
200956
200866
200749
200656
2005610
200457
200344
2002713
200168
200012
199946
199833
199746
199657
199545
199444
199300
199224
199158
199045
198935
198857
198735
198633
198533
198411
198338
198269
198146
198033
197955

When crashes happen on the B4015

Saturday has the most collisions on the B4015 (33), and noon to 3pm is the busiest time of day (38).

Collisions by day of the week

  • Monday21 (12%)
  • Tuesday22 (12%)
  • Wednesday26 (15%)
  • Thursday28 (16%)
  • Friday27 (15%)
  • Saturday33 (19%)
  • Sunday21 (12%)

Collisions by time of day

  • Midnight to 3am4 (2.2%)
  • 3am to 6am3 (1.7%)
  • 6am to 9am36 (20%)
  • 9am to noon18 (10%)
  • Noon to 3pm38 (21%)
  • 3pm to 6pm38 (21%)
  • 6pm to 9pm27 (15%)
  • 9pm to midnight14 (7.9%)

Collisions by month

  • January21 (12%)
  • February10 (5.6%)
  • March8 (4.5%)
  • April14 (7.9%)
  • May14 (7.9%)
  • June15 (8.4%)
  • July15 (8.4%)
  • August17 (9.6%)
  • September18 (10%)
  • October14 (7.9%)
  • November16 (9%)
  • December16 (9%)

Light conditions at the time

  • Daylight128 (72%)
  • Dark, no street lighting49 (28%)
  • Dark, street lights lit1 (0.6%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in B4015 crashes

On the B4015, 72% of collisions happened where the speed limit was 60 mph and 52% on a wet or damp road surface.

Speed limit at the scene

  • 20 mph1 (0.6%)
  • 30 mph6 (3.4%)
  • 50 mph43 (24%)
  • 60 mph128 (72%)

Weather at the time

  • Fine, no high winds130 (73%)
  • Raining, no high winds27 (15%)
  • Raining with high winds7 (3.9%)
  • Fog or mist2 (1.1%)
  • Other10 (5.6%)
  • Not recorded2 (1.1%)

Road surface

  • Wet or damp92 (52%)
  • Dry80 (45%)
  • Frost or ice4 (2.2%)
  • Oil or diesel1 (0.6%)
  • Not recorded1 (0.6%)

Type of road

  • Single carriageway175 (98%)
  • Roundabout3 (1.7%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in B4015 crashes

Car occupants make up 76% of the people killed or injured on the B4015, followed by motorcyclists (16%).

Casualties by road user

  • Car occupant192 (76%)
  • Motorcyclist40 (16%)
  • Van occupant9 (3.5%)
  • Goods vehicle occupant (over 3.5 tonnes)5 (2%)
  • Minibus occupant3 (1.2%)
  • Cyclist2 (0.8%)
  • Pedestrian2 (0.8%)
  • Bus or coach occupant1 (0.4%)

Vehicles involved

  • Car237 (76%)
  • Motorcycle40 (13%)
  • Van or goods vehicle up to 3.5 tonnes19 (6.1%)
  • Goods vehicle over 3.5 tonnes7 (2.2%)
  • Pedal cycle3 (1%)
  • Minibus2 (0.6%)
  • Other4 (1.3%)
  • Not recorded1 (0.3%)

Casualties by age

  • 0 to 51 (0.4%)
  • 6 to 101 (0.4%)
  • 11 to 152 (0.8%)
  • 16 to 2035 (14%)
  • 21 to 2529 (11%)
  • 26 to 3567 (26%)
  • 36 to 4541 (16%)
  • 46 to 5550 (20%)
  • 56 to 6517 (6.7%)
  • 66 to 756 (2.4%)
  • Over 754 (1.6%)
  • Not recorded1 (0.4%)

Drivers, passengers and pedestrians

  • Driver or rider205 (81%)
  • Passenger47 (19%)
  • Pedestrian2 (0.8%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the B4015

Map of the 25 most recent crashes on the B4015

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

  • 25 crashes
  • Serious
  • Slight

B4015 crashes by council area

Of the 178 collisions on the B4015, 175 were in South Oxfordshire.

Collisions on the B4015 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stSouth Oxfordshire175249547

Recent crashes on the B4015

These are the 25 most recent collisions on the B4015, from 13 July 2015 to 11 November 2025.

Severity