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CrashStats

A4063 accidents: crash map and statistics

Police recorded 1,439 collisions on the A4063 from 1979 to 2025, with 2,075 casualties. Of those crashes, 35 were fatal and 233 serious, and 39 people were killed.

In 2025 there were 12 collisions on the A4063, up 33% from 9 in 2024, with 19 casualties.

Collisions since 1979
1,439
770th highest of 4,923 roads
Casualties
2,075
1.44 per collision
Fatal collisions
35
39 people killed
Serious collisions
233
290 seriously injured
Collisions in 2025
12
Up 33% on 2024
Casualties in 2025
19
Up 58% on 2024

Crash severity on the A4063

On the A4063, 2.4% of collisions were fatal and 16% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal352.4%
  • Serious23316%
  • Slight1,17181%

Where the A4063 ranks among 4,923 roads

Most collisions
770th
Most casualties
724th
Most fatal collisions
590th
Most serious collisions
919th

A4063 accidents by year

Collisions on the A4063 peaked at 57 in 1979 and were down to 12 in 2025.

Collisions and casualties on the A4063, 1979 to 2025

  • Collisions
  • Collisions in 2025: 12
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
20251219
2024912
202378
2022711
20211218
20201010
20192528
20181924
20171521
20161932
20151922
20142845
20132841
20122333
20111928
20101322
20093153
20083049
20072125
20062941
20053354
20044161
20033454
20023150
20012639
20003459
19992439
19982124
19972738
19964668
19955379
19943556
19934057
19924261
19914068
19904659
19893244
19885382
19874055
19865475
19854558
19844352
19833553
19823746
19814562
19804973
19795767

When crashes happen on the A4063

Friday has the most collisions on the A4063 (236), and 3pm to 6pm is the busiest time of day (338).

Collisions by day of the week

  • Monday205 (14%)
  • Tuesday186 (13%)
  • Wednesday203 (14%)
  • Thursday211 (15%)
  • Friday236 (16%)
  • Saturday231 (16%)
  • Sunday167 (12%)

Collisions by time of day

  • Midnight to 3am61 (4.2%)
  • 3am to 6am28 (1.9%)
  • 6am to 9am178 (12%)
  • 9am to noon201 (14%)
  • Noon to 3pm227 (16%)
  • 3pm to 6pm338 (23%)
  • 6pm to 9pm236 (16%)
  • 9pm to midnight170 (12%)

Collisions by month

  • January144 (10%)
  • February122 (8.5%)
  • March128 (8.9%)
  • April104 (7.2%)
  • May105 (7.3%)
  • June105 (7.3%)
  • July117 (8.1%)
  • August114 (7.9%)
  • September117 (8.1%)
  • October131 (9.1%)
  • November122 (8.5%)
  • December130 (9%)

Light conditions at the time

  • Daylight976 (68%)
  • Dark, street lights lit364 (25%)
  • Dark, street lights unlit41 (2.8%)
  • Dark, lighting unknown29 (2%)
  • Dark, no street lighting26 (1.8%)
  • Not recorded3 (0.2%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in A4063 crashes

On the A4063, 73% of collisions happened where the speed limit was 30 mph and 62% on a dry road surface.

Speed limit at the scene

  • 20 mph12 (0.8%)
  • 30 mph1,057 (73%)
  • 40 mph13 (0.9%)
  • 50 mph67 (4.7%)
  • 60 mph201 (14%)
  • 70 mph89 (6.2%)

Weather at the time

  • Fine, no high winds1,088 (76%)
  • Raining, no high winds230 (16%)
  • Fine with high winds27 (1.9%)
  • Raining with high winds23 (1.6%)
  • Other45 (3.1%)
  • Not recorded26 (1.8%)

Road surface

  • Dry889 (62%)
  • Wet or damp498 (35%)
  • Frost or ice37 (2.6%)
  • Snow11 (0.8%)
  • Flood over 3cm deep1 (0.1%)
  • Not recorded3 (0.2%)

Type of road

  • Single carriageway1,174 (82%)
  • Dual carriageway194 (13%)
  • Roundabout61 (4.2%)
  • One way street or slip road3 (0.2%)
  • Not recorded7 (0.5%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in A4063 crashes

Car occupants make up 66% of the people killed or injured on the A4063, followed by pedestrians (15%).

Casualties by road user

  • Car occupant1,370 (66%)
  • Pedestrian301 (15%)
  • Motorcyclist173 (8.3%)
  • Cyclist64 (3.1%)
  • Bus or coach occupant59 (2.8%)
  • Van occupant38 (1.8%)
  • Other69 (3.3%)
  • Not recorded1 (under 0.1%)

Vehicles involved

  • Car2,022 (77%)
  • Motorcycle167 (6.4%)
  • Van or goods vehicle up to 3.5 tonnes127 (4.9%)
  • Bus or coach79 (3%)
  • Goods vehicle over 3.5 tonnes74 (2.8%)
  • Pedal cycle63 (2.4%)
  • Other74 (2.8%)
  • Not recorded4 (0.2%)

Casualties by age

  • 0 to 544 (2.1%)
  • 6 to 1067 (3.2%)
  • 11 to 15119 (5.7%)
  • 16 to 20417 (20%)
  • 21 to 25276 (13%)
  • 26 to 35404 (19%)
  • 36 to 45285 (14%)
  • 46 to 55192 (9.3%)
  • 56 to 65115 (5.5%)
  • 66 to 7595 (4.6%)
  • Over 7559 (2.8%)
  • Not recorded2 (0.1%)

Drivers, passengers and pedestrians

  • Driver or rider1,128 (54%)
  • Passenger646 (31%)
  • Pedestrian301 (15%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the A4063

Map of the 25 most recent crashes on the A4063

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

  • 25 crashes
  • Serious
  • Slight

A4063 crashes by council area

Collisions on the A4063 were recorded in 3 council areas. Bridgend has the most, with 1,386, followed by Neath Port Talbot (43) and Swansea (4).

Collisions on the A4063 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stBridgend1,3861,99733225
2ndNeath Port Talbot436026
3rdSwansea4601

A4063 crashes by town

Collisions on the A4063 were recorded in 5 towns and built-up areas, led by Maesteg (502) and Sarn (145).

Recent crashes on the A4063

These are the 25 most recent collisions on the A4063, from 22 August 2023 to 21 December 2025.

Severity