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CrashStats

B4263 accidents: crash map and statistics

Police recorded 604 collisions on the B4263 from 1979 to 2025, with 795 casualties. Of those crashes, 10 were fatal and 98 serious, and 10 people were killed.

In 2025 there were 8 collisions on the B4263, down 33% from 12 in 2024, with 8 casualties.

Collisions since 1979
604
1,683rd highest of 4,923 roads
Casualties
795
1.32 per collision
Fatal collisions
10
10 people killed
Serious collisions
98
114 seriously injured
Collisions in 2025
8
Down 33% on 2024
Casualties in 2025
8
Down 56% on 2024

Crash severity on the B4263

On the B4263, 1.7% of collisions were fatal and 16% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal101.7%
  • Serious9816%
  • Slight49682%

Where the B4263 ranks among 4,923 roads

Most collisions
1,683rd
Most casualties
1,736th
Most fatal collisions
1,701st
Most serious collisions
1,948th

B4263 accidents by year

Collisions on the B4263 peaked at 31 in 1980 and were down to 8 in 2025.

Collisions and casualties on the B4263, 1979 to 2025

  • Collisions
  • Collisions in 2025: 8
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
202588
20241218
2023911
202255
202169
202058
201999
201878
201744
201658
201566
20141013
201369
201255
20111314
2010910
200933
20081117
20071516
20061417
20051618
20041720
20032431
20022026
20011623
20002535
19991520
19981524
19972430
19961118
1995916
199469
199333
1992811
19911314
19901224
19891518
19881416
19871416
19861619
19851926
19841317
19832033
19821622
19812838
19803137
19792233

When crashes happen on the B4263

Thursday has the most collisions on the B4263 (103), and 3pm to 6pm is the busiest time of day (133).

Collisions by day of the week

  • Monday81 (13%)
  • Tuesday74 (12%)
  • Wednesday85 (14%)
  • Thursday103 (17%)
  • Friday92 (15%)
  • Saturday102 (17%)
  • Sunday67 (11%)

Collisions by time of day

  • Midnight to 3am29 (4.8%)
  • 3am to 6am13 (2.2%)
  • 6am to 9am54 (8.9%)
  • 9am to noon99 (16%)
  • Noon to 3pm101 (17%)
  • 3pm to 6pm133 (22%)
  • 6pm to 9pm97 (16%)
  • 9pm to midnight78 (13%)

Collisions by month

  • January60 (9.9%)
  • February51 (8.4%)
  • March54 (8.9%)
  • April56 (9.3%)
  • May41 (6.8%)
  • June44 (7.3%)
  • July48 (7.9%)
  • August32 (5.3%)
  • September57 (9.4%)
  • October59 (9.8%)
  • November47 (7.8%)
  • December55 (9.1%)

Light conditions at the time

  • Daylight411 (68%)
  • Dark, street lights lit170 (28%)
  • Dark, lighting unknown10 (1.7%)
  • Dark, street lights unlit7 (1.2%)
  • Dark, no street lighting5 (0.8%)
  • Not recorded1 (0.2%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in B4263 crashes

On the B4263, 92% of collisions happened where the speed limit was 30 mph and 66% on a dry road surface.

Speed limit at the scene

  • 20 mph21 (3.5%)
  • 30 mph556 (92%)
  • 40 mph19 (3.1%)
  • 50 mph1 (0.2%)
  • 60 mph7 (1.2%)

Weather at the time

  • Fine, no high winds456 (75%)
  • Raining, no high winds103 (17%)
  • Raining with high winds18 (3%)
  • Fine with high winds5 (0.8%)
  • Other14 (2.3%)
  • Not recorded8 (1.3%)

Road surface

  • Dry399 (66%)
  • Wet or damp192 (32%)
  • Frost or ice10 (1.7%)
  • Snow2 (0.3%)
  • Not recorded1 (0.2%)

Type of road

  • Single carriageway562 (93%)
  • One way street or slip road29 (4.8%)
  • Roundabout9 (1.5%)
  • Dual carriageway3 (0.5%)
  • Not recorded1 (0.2%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in B4263 crashes

Car occupants make up 53% of the people killed or injured on the B4263, followed by pedestrians (22%).

Casualties by road user

  • Car occupant421 (53%)
  • Pedestrian178 (22%)
  • Motorcyclist92 (12%)
  • Bus or coach occupant42 (5.3%)
  • Cyclist35 (4.4%)
  • Van occupant11 (1.4%)
  • Taxi or private hire car occupant6 (0.8%)
  • Other10 (1.3%)

Vehicles involved

  • Car778 (74%)
  • Motorcycle94 (9%)
  • Bus or coach46 (4.4%)
  • Van or goods vehicle up to 3.5 tonnes43 (4.1%)
  • Pedal cycle34 (3.3%)
  • Taxi or private hire car18 (1.7%)
  • Goods vehicle over 3.5 tonnes13 (1.2%)
  • Other19 (1.8%)

Casualties by age

  • 0 to 517 (2.1%)
  • 6 to 1044 (5.5%)
  • 11 to 1569 (8.7%)
  • 16 to 20147 (18%)
  • 21 to 25107 (13%)
  • 26 to 35140 (18%)
  • 36 to 4594 (12%)
  • 46 to 5564 (8.1%)
  • 56 to 6553 (6.7%)
  • 66 to 7541 (5.2%)
  • Over 7517 (2.1%)
  • Not recorded2 (0.3%)

Drivers, passengers and pedestrians

  • Driver or rider388 (49%)
  • Passenger229 (29%)
  • Pedestrian178 (22%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the B4263

Map of the 25 most recent crashes on the B4263

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

  • 25 crashes
  • Fatal
  • Serious
  • Slight

B4263 crashes by council area

Of the 604 collisions on the B4263, 600 were in Caerphilly.

Collisions on the B4263 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stCaerphilly6007901097

B4263 crashes by town

Collisions on the B4263 were recorded in 2 towns and built-up areas, led by Caerphilly (332) and Abertridwr and Senghenydd (170).

Recent crashes on the B4263

These are the 25 most recent collisions on the B4263, from 8 July 2023 to 29 November 2025.

Severity