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CrashStats

B4524 accidents: crash map and statistics

Police recorded 178 collisions on the B4524 from 1979 to 2025, with 278 casualties. Of those crashes, 5 were fatal and 30 serious, and 7 people were killed.

In 2025 there were 2 collisions on the B4524, up from none in 2024, with 3 casualties.

Collisions since 1979
178
3,393rd highest of 4,923 roads
Casualties
278
1.56 per collision
Fatal collisions
5
7 people killed
Serious collisions
30
36 seriously injured
Collisions in 2025
2
Up from none in 2024
Casualties in 2025
3
Up from none in 2024

Crash severity on the B4524

On the B4524, 2.8% of collisions were fatal and 17% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal52.8%
  • Serious3017%
  • Slight14380%

Where the B4524 ranks among 4,923 roads

Most collisions
3,393rd
Most casualties
3,215th
Most fatal collisions
2,545th
Most serious collisions
3,619th

B4524 accidents by year

Collisions on the B4524 peaked at 10 in 1980 and were down to 2 in 2025.

Collisions and casualties on the B4524, 1979 to 2025

  • Collisions
  • Collisions in 2025: 2
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
202523
202400
202345
202200
202100
202000
2019610
2018613
2017811
201623
201557
2014610
201322
201212
201133
201038
200935
200800
200711
200657
200512
200424
200345
200249
200148
2000612
199911
199822
199733
199624
199559
199459
199326
199244
199134
199069
198945
198811
198757
1986712
1985916
1984910
1983813
1982710
198134
19801011
197948

When crashes happen on the B4524

Sunday has the most collisions on the B4524 (41), and 3pm to 6pm is the busiest time of day (46).

Collisions by day of the week

  • Monday21 (12%)
  • Tuesday20 (11%)
  • Wednesday16 (9%)
  • Thursday23 (13%)
  • Friday24 (13%)
  • Saturday33 (19%)
  • Sunday41 (23%)

Collisions by time of day

  • Midnight to 3am9 (5.1%)
  • 3am to 6am4 (2.2%)
  • 6am to 9am7 (3.9%)
  • 9am to noon25 (14%)
  • Noon to 3pm25 (14%)
  • 3pm to 6pm46 (26%)
  • 6pm to 9pm27 (15%)
  • 9pm to midnight35 (20%)

Collisions by month

  • January11 (6.2%)
  • February8 (4.5%)
  • March7 (3.9%)
  • April17 (9.6%)
  • May17 (9.6%)
  • June14 (7.9%)
  • July17 (9.6%)
  • August18 (10%)
  • September21 (12%)
  • October16 (9%)
  • November15 (8.4%)
  • December17 (9.6%)

Light conditions at the time

  • Daylight114 (64%)
  • Dark, no street lighting40 (22%)
  • Dark, street lights lit16 (9%)
  • Dark, lighting unknown6 (3.4%)
  • Dark, street lights unlit2 (1.1%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in B4524 crashes

On the B4524, 40% of collisions happened where the speed limit was 60 mph and 62% on a dry road surface.

Speed limit at the scene

  • 20 mph1 (0.6%)
  • 30 mph67 (38%)
  • 40 mph35 (20%)
  • 50 mph1 (0.6%)
  • 60 mph72 (40%)
  • 70 mph2 (1.1%)

Weather at the time

  • Fine, no high winds144 (81%)
  • Raining, no high winds21 (12%)
  • Fine with high winds6 (3.4%)
  • Raining with high winds4 (2.2%)
  • Other3 (1.7%)

Road surface

  • Dry111 (62%)
  • Wet or damp64 (36%)
  • Frost or ice2 (1.1%)
  • Flood over 3cm deep1 (0.6%)

Type of road

  • Single carriageway176 (99%)
  • Dual carriageway1 (0.6%)
  • One way street or slip road1 (0.6%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in B4524 crashes

Car occupants make up 76% of the people killed or injured on the B4524, followed by motorcyclists (12%).

Casualties by road user

  • Car occupant210 (76%)
  • Motorcyclist32 (12%)
  • Cyclist10 (3.6%)
  • Pedestrian9 (3.2%)
  • Van occupant6 (2.2%)
  • Goods vehicle occupant (over 3.5 tonnes)5 (1.8%)
  • Bus or coach occupant3 (1.1%)
  • Other vehicle occupant3 (1.1%)

Vehicles involved

  • Car231 (79%)
  • Motorcycle29 (9.9%)
  • Pedal cycle10 (3.4%)
  • Van or goods vehicle up to 3.5 tonnes8 (2.7%)
  • Goods vehicle over 3.5 tonnes7 (2.4%)
  • Other vehicle5 (1.7%)
  • Bus or coach3 (1%)
  • Not recorded1 (0.3%)

Casualties by age

  • 0 to 52 (0.7%)
  • 6 to 105 (1.8%)
  • 11 to 1510 (3.6%)
  • 16 to 20100 (36%)
  • 21 to 2534 (12%)
  • 26 to 3539 (14%)
  • 36 to 4540 (14%)
  • 46 to 5516 (5.8%)
  • 56 to 6516 (5.8%)
  • 66 to 755 (1.8%)
  • Over 7511 (4%)

Drivers, passengers and pedestrians

  • Driver or rider165 (59%)
  • Passenger104 (37%)
  • Pedestrian9 (3.2%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the B4524

Map of the 25 most recent crashes on the B4524

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

  • 25 crashes
  • Serious
  • Slight

B4524 crashes by council area

Collisions on the B4524 were recorded in 2 council areas. Vale of Glamorgan has the most, with 161, followed by Bridgend (16).

Collisions on the B4524 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stVale of Glamorgan161253429
2ndBridgend162411

Recent crashes on the B4524

These are the 25 most recent collisions on the B4524, from 16 April 2017 to 9 January 2025.

Severity