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CrashStats

B4512 accidents: crash map and statistics

Police recorded 121 collisions on the B4512 from 1979 to 2024, with 189 casualties. Of those crashes, 4 were fatal and 26 serious, and 5 people were killed.

No collisions were recorded on the B4512 in 2025, after 1 in 2024.

Collisions since 1979
121
3,837th highest of 4,923 roads
Casualties
189
1.56 per collision
Fatal collisions
4
5 people killed
Serious collisions
26
35 seriously injured
Collisions in 2025
0
1 in 2024
Casualties in 2025
0
2 in 2024

Crash severity on the B4512

On the B4512, 3.3% of collisions were fatal and 21% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2024

  • Fatal43.3%
  • Serious2621%
  • Slight9175%

Where the B4512 ranks among 4,923 roads

Most collisions
3,837th
Most casualties
3,682nd
Most fatal collisions
2,815th
Most serious collisions
3,773rd

B4512 accidents by year

Collisions on the B4512 peaked at 8 in 1987; none were recorded in 2025.

Collisions and casualties on the B4512, 1979 to 2025

  • Collisions
  • Collisions in 2025
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
202500
202412
202311
202211
202100
202022
201946
201811
201733
201600
201511
201423
201311
201214
201122
201000
200911
200836
200711
200612
200500
200422
200344
200211
200100
200026
199913
199834
199736
199614
199556
199428
199335
1992612
199148
199079
1989510
198823
1987810
198666
198559
1984611
198333
198234
198147
198079
197922

When crashes happen on the B4512

Monday has the most collisions on the B4512 (23), and 9pm to midnight is the busiest time of day (28).

Collisions by day of the week

  • Monday23 (19%)
  • Tuesday14 (12%)
  • Wednesday18 (15%)
  • Thursday15 (12%)
  • Friday18 (15%)
  • Saturday16 (13%)
  • Sunday17 (14%)

Collisions by time of day

  • Midnight to 3am11 (9.1%)
  • 3am to 6am0 (0%)
  • 6am to 9am12 (9.9%)
  • 9am to noon10 (8.3%)
  • Noon to 3pm13 (11%)
  • 3pm to 6pm26 (21%)
  • 6pm to 9pm21 (17%)
  • 9pm to midnight28 (23%)

Collisions by month

  • January6 (5%)
  • February5 (4.1%)
  • March8 (6.6%)
  • April10 (8.3%)
  • May10 (8.3%)
  • June10 (8.3%)
  • July12 (9.9%)
  • August15 (12%)
  • September12 (9.9%)
  • October14 (12%)
  • November7 (5.8%)
  • December12 (9.9%)

Light conditions at the time

  • Daylight68 (56%)
  • Dark, street lights lit44 (36%)
  • Dark, street lights unlit5 (4.1%)
  • Dark, no street lighting3 (2.5%)
  • Dark, lighting unknown1 (0.8%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in B4512 crashes

On the B4512, 98% of collisions happened where the speed limit was 30 mph and 59% on a dry road surface.

Speed limit at the scene

  • 20 mph2 (1.7%)
  • 30 mph119 (98%)

Weather at the time

  • Fine, no high winds80 (66%)
  • Raining, no high winds31 (26%)
  • Raining with high winds6 (5%)
  • Fine with high winds1 (0.8%)
  • Snowing with high winds1 (0.8%)
  • Not recorded2 (1.7%)

Road surface

  • Dry71 (59%)
  • Wet or damp47 (39%)
  • Frost or ice2 (1.7%)
  • Snow1 (0.8%)

Type of road

  • Single carriageway112 (93%)
  • Roundabout6 (5%)
  • Dual carriageway1 (0.8%)
  • Not recorded2 (1.7%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in B4512 crashes

Car occupants make up 69% of the people killed or injured on the B4512, followed by pedestrians (13%).

Casualties by road user

  • Car occupant131 (69%)
  • Pedestrian25 (13%)
  • Motorcyclist9 (4.8%)
  • Bus or coach occupant5 (2.6%)
  • Minibus occupant5 (2.6%)
  • Van occupant5 (2.6%)
  • Cyclist3 (1.6%)
  • Other6 (3.2%)

Vehicles involved

  • Car154 (79%)
  • Motorcycle10 (5.1%)
  • Van or goods vehicle up to 3.5 tonnes9 (4.6%)
  • Bus or coach5 (2.6%)
  • Minibus4 (2.1%)
  • Taxi or private hire car4 (2.1%)
  • Goods vehicle over 3.5 tonnes3 (1.5%)
  • Other6 (3.1%)

Casualties by age

  • 0 to 57 (3.7%)
  • 6 to 108 (4.2%)
  • 11 to 1511 (5.8%)
  • 16 to 2052 (28%)
  • 21 to 2534 (18%)
  • 26 to 3527 (14%)
  • 36 to 4521 (11%)
  • 46 to 5517 (9%)
  • 56 to 659 (4.8%)
  • 66 to 753 (1.6%)

Drivers, passengers and pedestrians

  • Driver or rider86 (46%)
  • Passenger78 (41%)
  • Pedestrian25 (13%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the B4512

Map of the 25 most recent crashes on the B4512

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

  • 25 crashes
  • Fatal
  • Serious
  • Slight

B4512 crashes by council area

Of the 121 collisions on the B4512, 120 were in Rhondda Cynon Taf.

Collisions on the B4512 in each area, 1979 to 2024
RankAreaCollisionsCasualtiesFatalSerious
1stRhondda Cynon Taf120188426

B4512 crashes by town

Collisions on the B4512 were recorded in 2 towns and built-up areas, led by Rhondda (51) and Tylorstown and Pontygwaith (10).

Recent crashes on the B4512

These are the 25 most recent collisions on the B4512, from 21 March 2007 to 6 October 2024.

Severity