Skip to main content
CrashStats

B4525 accidents: crash map and statistics

Police recorded 547 collisions on the B4525 from 1979 to 2025, with 826 casualties. Of those crashes, 25 were fatal and 188 serious, and 26 people were killed.

In 2025 there were 13 collisions on the B4525, up 44% from 9 in 2024, with 19 casualties.

Collisions since 1979
547
1,828th highest of 4,923 roads
Casualties
826
1.51 per collision
Fatal collisions
25
26 people killed
Serious collisions
188
261 seriously injured
Collisions in 2025
13
Up 44% on 2024
Casualties in 2025
19
Up 46% on 2024

Crash severity on the B4525

On the B4525, 4.6% of collisions were fatal and 34% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal254.6%
  • Serious18834%
  • Slight33461%

Where the B4525 ranks among 4,923 roads

Most collisions
1,828th
Most casualties
1,681st
Most fatal collisions
800th
Most serious collisions
1,114th

B4525 accidents by year

Collisions on the B4525 peaked at 27 in 1987 and were down to 13 in 2025.

Collisions and casualties on the B4525, 1979 to 2025

  • Collisions
  • Collisions in 2025: 13
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
20251319
2024913
20231215
202246
202134
202022
201938
201834
201757
2016810
201556
2014811
2013914
2012510
2011711
201047
200969
2008811
2007812
20061117
2005915
20041315
20031115
200257
2001710
20001017
19991934
19982134
1997610
19961121
19951216
19941226
19931526
19922130
19911120
19901522
19892230
19881724
19872740
19861217
19852532
19841922
19831722
19822342
19811623
19802027
19791833

When crashes happen on the B4525

Friday has the most collisions on the B4525 (97), and 3pm to 6pm is the busiest time of day (125).

Collisions by day of the week

  • Monday70 (13%)
  • Tuesday86 (16%)
  • Wednesday73 (13%)
  • Thursday75 (14%)
  • Friday97 (18%)
  • Saturday72 (13%)
  • Sunday74 (14%)

Collisions by time of day

  • Midnight to 3am19 (3.5%)
  • 3am to 6am7 (1.3%)
  • 6am to 9am102 (19%)
  • 9am to noon68 (12%)
  • Noon to 3pm90 (16%)
  • 3pm to 6pm125 (23%)
  • 6pm to 9pm91 (17%)
  • 9pm to midnight45 (8.2%)

Collisions by month

  • January58 (11%)
  • February36 (6.6%)
  • March46 (8.4%)
  • April30 (5.5%)
  • May40 (7.3%)
  • June56 (10%)
  • July48 (8.8%)
  • August32 (5.9%)
  • September47 (8.6%)
  • October52 (9.5%)
  • November58 (11%)
  • December44 (8%)

Light conditions at the time

  • Daylight387 (71%)
  • Dark, no street lighting126 (23%)
  • Dark, street lights lit23 (4.2%)
  • Dark, lighting unknown8 (1.5%)
  • Dark, street lights unlit3 (0.5%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in B4525 crashes

On the B4525, 74% of collisions happened where the speed limit was 60 mph and 58% on a dry road surface.

Speed limit at the scene

  • 30 mph88 (16%)
  • 40 mph14 (2.6%)
  • 50 mph38 (6.9%)
  • 60 mph403 (74%)
  • 70 mph4 (0.7%)

Weather at the time

  • Fine, no high winds418 (76%)
  • Raining, no high winds66 (12%)
  • Fine with high winds12 (2.2%)
  • Fog or mist11 (2%)
  • Other29 (5.3%)
  • Not recorded11 (2%)

Road surface

  • Dry319 (58%)
  • Wet or damp193 (35%)
  • Frost or ice27 (4.9%)
  • Snow7 (1.3%)
  • Mud1 (0.2%)

Type of road

  • Single carriageway538 (98%)
  • Roundabout5 (0.9%)
  • Dual carriageway3 (0.5%)
  • Not recorded1 (0.2%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in B4525 crashes

Car occupants make up 75% of the people killed or injured on the B4525, followed by motorcyclists (11%).

Casualties by road user

  • Car occupant618 (75%)
  • Motorcyclist88 (11%)
  • Van occupant37 (4.5%)
  • Pedestrian28 (3.4%)
  • Goods vehicle occupant (over 3.5 tonnes)27 (3.3%)
  • Cyclist14 (1.7%)
  • Minibus occupant8 (1%)
  • Other6 (0.7%)

Vehicles involved

  • Car745 (76%)
  • Motorcycle87 (8.9%)
  • Goods vehicle over 3.5 tonnes58 (5.9%)
  • Van or goods vehicle up to 3.5 tonnes51 (5.2%)
  • Pedal cycle15 (1.5%)
  • Other vehicle10 (1%)
  • Bus or coach6 (0.6%)
  • Other8 (0.8%)

Casualties by age

  • 0 to 511 (1.3%)
  • 6 to 1015 (1.8%)
  • 11 to 1526 (3.1%)
  • 16 to 20186 (23%)
  • 21 to 25113 (14%)
  • 26 to 35153 (19%)
  • 36 to 45141 (17%)
  • 46 to 5577 (9.3%)
  • 56 to 6551 (6.2%)
  • 66 to 7531 (3.8%)
  • Over 7521 (2.5%)
  • Not recorded1 (0.1%)

Drivers, passengers and pedestrians

  • Driver or rider578 (70%)
  • Passenger220 (27%)
  • Pedestrian28 (3.4%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the B4525

Map of the 25 most recent crashes on the B4525

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

  • 25 crashes
  • Serious
  • Slight

B4525 crashes by council area

Collisions on the B4525 were recorded in 2 council areas. West Northamptonshire has the most, with 531, followed by Rhondda Cynon Taf (15).

Collisions on the B4525 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stWest Northamptonshire53180525184
2ndRhondda Cynon Taf151704

B4525 crashes by town

Collisions on the B4525 were recorded in 3 towns and built-up areas, led by Middleton Cheney (43) and Llantrisant (6).

Recent crashes on the B4525

These are the 25 most recent collisions on the B4525, from 13 November 2023 to 15 December 2025.

Severity