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CrashStats

A4221 accidents: crash map and statistics

Police recorded 66 collisions on the A4221 from 1979 to 2025, with 94 casualties. Of those crashes, 4 were fatal and 16 serious, and 4 people were killed.

In 2025 there were 3 collisions on the A4221, up 50% from 2 in 2024, with 3 casualties.

Collisions since 1979
66
4,415th highest of 4,923 roads
Casualties
94
1.42 per collision
Fatal collisions
4
4 people killed
Serious collisions
16
20 seriously injured
Collisions in 2025
3
Up 50% on 2024
Casualties in 2025
3
Down 25% on 2024

Crash severity on the A4221

On the A4221, 6.1% of collisions were fatal and 24% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal46.1%
  • Serious1624%
  • Slight4670%

Where the A4221 ranks among 4,923 roads

Most collisions
4,415th
Most casualties
4,357th
Most fatal collisions
2,815th
Most serious collisions
4,250th

A4221 accidents by year

2025 had the most collisions of any year on the A4221, with 3.

Collisions and casualties on the A4221, 1979 to 2025

  • Collisions
  • Collisions in 2025: 3
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
202533
202424
202322
202211
202111
202022
201912
201811
201722
201611
201522
201422
201334
201200
201111
201012
200900
200823
200712
200612
200511
200411
200322
200213
200123
200000
199933
199814
199700
199611
199511
199434
199335
199212
199128
199000
198911
198812
198734
198622
198511
198400
198300
198233
198134
198000
197912

When crashes happen on the A4221

Wednesday has the most collisions on the A4221 (12), and 3pm to 6pm is the busiest time of day (14).

Collisions by day of the week

  • Monday11 (17%)
  • Tuesday11 (17%)
  • Wednesday12 (18%)
  • Thursday8 (12%)
  • Friday9 (14%)
  • Saturday7 (11%)
  • Sunday8 (12%)

Collisions by time of day

  • Midnight to 3am2 (3%)
  • 3am to 6am1 (1.5%)
  • 6am to 9am10 (15%)
  • 9am to noon10 (15%)
  • Noon to 3pm13 (20%)
  • 3pm to 6pm14 (21%)
  • 6pm to 9pm7 (11%)
  • 9pm to midnight9 (14%)

Collisions by month

  • January4 (6.1%)
  • February4 (6.1%)
  • March7 (11%)
  • April2 (3%)
  • May8 (12%)
  • June6 (9.1%)
  • July6 (9.1%)
  • August4 (6.1%)
  • September7 (11%)
  • October5 (7.6%)
  • November7 (11%)
  • December6 (9.1%)

Light conditions at the time

  • Daylight48 (73%)
  • Dark, no street lighting11 (17%)
  • Dark, street lights lit7 (11%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in A4221 crashes

On the A4221, 86% of collisions happened where the speed limit was 60 mph and 50% on a dry road surface.

Speed limit at the scene

  • 30 mph3 (4.5%)
  • 40 mph2 (3%)
  • 50 mph4 (6.1%)
  • 60 mph57 (86%)

Weather at the time

  • Fine, no high winds41 (62%)
  • Raining, no high winds14 (21%)
  • Raining with high winds5 (7.6%)
  • Snowing, no high winds1 (1.5%)
  • Other5 (7.6%)

Road surface

  • Dry33 (50%)
  • Wet or damp26 (39%)
  • Frost or ice5 (7.6%)
  • Snow2 (3%)

Type of road

  • Single carriageway63 (95%)
  • One way street or slip road3 (4.5%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in A4221 crashes

Car occupants make up 68% of the people killed or injured on the A4221, followed by motorcyclists (8.5%).

Casualties by road user

  • Car occupant64 (68%)
  • Motorcyclist8 (8.5%)
  • Goods vehicle occupant (over 3.5 tonnes)6 (6.4%)
  • Pedestrian6 (6.4%)
  • Van occupant6 (6.4%)
  • Cyclist4 (4.3%)

Vehicles involved

  • Car78 (72%)
  • Van or goods vehicle up to 3.5 tonnes12 (11%)
  • Motorcycle8 (7.3%)
  • Goods vehicle over 3.5 tonnes5 (4.6%)
  • Pedal cycle4 (3.7%)
  • Bus or coach2 (1.8%)

Casualties by age

  • 6 to 101 (1.1%)
  • 11 to 153 (3.2%)
  • 16 to 2020 (21%)
  • 21 to 2513 (14%)
  • 26 to 3514 (15%)
  • 36 to 4514 (15%)
  • 46 to 5517 (18%)
  • 56 to 656 (6.4%)
  • 66 to 755 (5.3%)
  • Over 751 (1.1%)

Drivers, passengers and pedestrians

  • Driver or rider64 (68%)
  • Passenger24 (26%)
  • Pedestrian6 (6.4%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the A4221

Map of the 25 most recent crashes on the A4221

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

  • 25 crashes
  • Fatal
  • Serious
  • Slight

A4221 crashes by council area

Collisions on the A4221 were recorded in 2 council areas. Powys has the most, with 57, followed by Neath Port Talbot (8).

Collisions on the A4221 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stPowys5782416
2ndNeath Port Talbot8900

Recent crashes on the A4221

These are the 25 most recent collisions on the A4221, from 20 March 2010 to 18 June 2025.

Severity