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CrashStats

B4223 accidents: crash map and statistics

Police recorded 415 collisions on the B4223 from 1979 to 2025, with 590 casualties. Of those crashes, 11 were fatal and 81 serious, and 14 people were killed.

In 2025 there were 7 collisions on the B4223, up 600% from 1 in 2024, with 8 casualties.

Collisions since 1979
415
2,240th highest of 4,923 roads
Casualties
590
1.42 per collision
Fatal collisions
11
14 people killed
Serious collisions
81
111 seriously injured
Collisions in 2025
7
Up 600% on 2024
Casualties in 2025
8
Up 700% on 2024

Crash severity on the B4223

On the B4223, 2.7% of collisions were fatal and 20% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal112.7%
  • Serious8120%
  • Slight32378%

Where the B4223 ranks among 4,923 roads

Most collisions
2,240th
Most casualties
2,165th
Most fatal collisions
1,595th
Most serious collisions
2,260th

B4223 accidents by year

Collisions on the B4223 peaked at 25 in 1992 and were down to 7 in 2025.

Collisions and casualties on the B4223, 1979 to 2025

  • Collisions
  • Collisions in 2025: 7
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
202578
202411
202336
202233
202111
202037
201936
201845
2017710
201645
2015713
2014510
20131117
2012811
201134
2010910
200947
200844
200779
200658
2005511
2004712
2003810
200244
200156
2000813
1999410
1998913
19971833
19961018
199567
19941419
19931112
19922542
19911419
19902023
19892229
19881618
19871618
19861720
19851011
19841224
19831112
198258
19811013
19801722
19791218

When crashes happen on the B4223

Saturday has the most collisions on the B4223 (71), and 6pm to 9pm is the busiest time of day (84).

Collisions by day of the week

  • Monday57 (14%)
  • Tuesday64 (15%)
  • Wednesday49 (12%)
  • Thursday55 (13%)
  • Friday64 (15%)
  • Saturday71 (17%)
  • Sunday55 (13%)

Collisions by time of day

  • Midnight to 3am21 (5.1%)
  • 3am to 6am6 (1.4%)
  • 6am to 9am43 (10%)
  • 9am to noon56 (13%)
  • Noon to 3pm63 (15%)
  • 3pm to 6pm75 (18%)
  • 6pm to 9pm84 (20%)
  • 9pm to midnight67 (16%)

Collisions by month

  • January30 (7.2%)
  • February22 (5.3%)
  • March42 (10%)
  • April31 (7.5%)
  • May32 (7.7%)
  • June28 (6.7%)
  • July37 (8.9%)
  • August35 (8.4%)
  • September33 (8%)
  • October38 (9.2%)
  • November52 (13%)
  • December35 (8.4%)

Light conditions at the time

  • Daylight251 (60%)
  • Dark, street lights lit126 (30%)
  • Dark, street lights unlit23 (5.5%)
  • Dark, lighting unknown5 (1.2%)
  • Dark, no street lighting5 (1.2%)
  • Not recorded5 (1.2%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in B4223 crashes

On the B4223, 72% of collisions happened where the speed limit was 30 mph and 53% on a dry road surface.

Speed limit at the scene

  • 20 mph6 (1.4%)
  • 30 mph298 (72%)
  • 40 mph107 (26%)
  • 50 mph1 (0.2%)
  • 60 mph2 (0.5%)
  • 70 mph1 (0.2%)

Weather at the time

  • Fine, no high winds286 (69%)
  • Raining, no high winds97 (23%)
  • Raining with high winds11 (2.7%)
  • Fine with high winds5 (1.2%)
  • Other7 (1.7%)
  • Not recorded9 (2.2%)

Road surface

  • Dry219 (53%)
  • Wet or damp169 (41%)
  • Frost or ice17 (4.1%)
  • Snow3 (0.7%)
  • Flood over 3cm deep2 (0.5%)
  • Not recorded5 (1.2%)

Type of road

  • Single carriageway408 (98%)
  • One way street or slip road3 (0.7%)
  • Dual carriageway1 (0.2%)
  • Roundabout1 (0.2%)
  • Not recorded2 (0.5%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in B4223 crashes

Car occupants make up 69% of the people killed or injured on the B4223, followed by pedestrians (16%).

Casualties by road user

  • Car occupant406 (69%)
  • Pedestrian94 (16%)
  • Motorcyclist36 (6.1%)
  • Cyclist17 (2.9%)
  • Van occupant9 (1.5%)
  • Bus or coach occupant8 (1.4%)
  • Goods vehicle occupant (over 3.5 tonnes)7 (1.2%)
  • Other13 (2.2%)

Vehicles involved

  • Car574 (83%)
  • Motorcycle38 (5.5%)
  • Van or goods vehicle up to 3.5 tonnes27 (3.9%)
  • Pedal cycle16 (2.3%)
  • Bus or coach15 (2.2%)
  • Goods vehicle over 3.5 tonnes11 (1.6%)
  • Minibus3 (0.4%)
  • Other5 (0.7%)

Casualties by age

  • 0 to 513 (2.2%)
  • 6 to 1033 (5.6%)
  • 11 to 1536 (6.1%)
  • 16 to 20122 (21%)
  • 21 to 2597 (16%)
  • 26 to 35113 (19%)
  • 36 to 4558 (9.8%)
  • 46 to 5539 (6.6%)
  • 56 to 6533 (5.6%)
  • 66 to 7528 (4.7%)
  • Over 7518 (3.1%)

Drivers, passengers and pedestrians

  • Driver or rider298 (51%)
  • Passenger198 (34%)
  • Pedestrian94 (16%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the B4223

Map of the 25 most recent crashes on the B4223

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

  • 25 crashes
  • Fatal
  • Serious
  • Slight

B4223 crashes by council area

Of the 415 collisions on the B4223, 412 were in Rhondda Cynon Taf.

Collisions on the B4223 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stRhondda Cynon Taf4125871181

B4223 crashes by town

Collisions on the B4223 were recorded in 2 towns and built-up areas, led by Rhondda (255) and Treorchy (3).

Recent crashes on the B4223

These are the 25 most recent collisions on the B4223, from 27 March 2018 to 18 November 2025.

Severity