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CrashStats

NP12 road accidents: crash map and statistics

Police recorded 3,130 road traffic collisions in the NP12 postcode district, Caerphilly, from 1979 to 2025, and 4,337 people were killed or injured in them. Of those collisions, 53 were fatal and 612 were serious.

In 2025 police recorded 29 collisions, level with 2024.

Collisions since 1979
3,130
1,257th highest of 2,813 postcode districts
Casualties
4,337
1.39 per collision
Fatal collisions
53
61 people killed
Serious collisions
612
698 seriously injured
Collisions in 2025
29
Level with 2024
Casualties in 2025
33
Down 6% on 2024

Road collision statistics for NP12

Collisions by severity, 1979 to 2025

  • Fatal531.7%
  • Serious61220%
  • Slight2,46579%

What the data shows

  • NP12 had 341 collisions from 2016 to 2025, 25% fewer than the 453 from 2006 to 2015.
  • 21% of collisions in NP12 were fatal or serious, against 20% across Great Britain.
  • 701 children under 16 were killed or injured in NP12, 16% of the casualties whose age was recorded.
  • The road surface was wet, icy, snowy or flooded in 37% of collisions in NP12.

Where NP12 ranks among 2,813 postcode districts

Most collisions
1,257th
Most casualties
1,208th
Most fatal collisions
1,101st
Most serious collisions
1,171st

Collisions by day of the week

  • Monday446 (14%)
  • Tuesday421 (13%)
  • Wednesday437 (14%)
  • Thursday473 (15%)
  • Friday537 (17%)
  • Saturday496 (16%)
  • Sunday320 (10%)

Light conditions

  • Daylight2,214 (71%)
  • Dark, street lights lit781 (25%)
  • Dark, no street lighting51 (1.6%)
  • Dark, street lights unlit41 (1.3%)
  • Dark, lighting unknown40 (1.3%)
  • Not recorded3 (0.1%)

Type of road

  • Single carriageway2,860 (91%)
  • Roundabout155 (5%)
  • Dual carriageway86 (2.7%)
  • One way street or slip road18 (0.6%)
  • Not recorded11 (0.4%)

Speed limit at the scene

  • 20 mph39 (1.2%)
  • 30 mph2,346 (75%)
  • 40 mph321 (10%)
  • 50 mph94 (3%)
  • 60 mph280 (8.9%)
  • 70 mph50 (1.6%)

Weather at the time

  • Fine, no high winds2,305 (74%)
  • Raining, no high winds499 (16%)
  • Raining with high winds77 (2.5%)
  • Fine with high winds41 (1.3%)
  • Fog or mist23 (0.7%)
  • Snowing, no high winds18 (0.6%)
  • Snowing with high winds7 (0.2%)
  • Other123 (3.9%)
  • Not recorded37 (1.2%)

Who was hurt

  • Car occupant2,700 (62%)
  • Pedestrian780 (18%)
  • Motorcyclist367 (8.5%)
  • Cyclist199 (4.6%)
  • Bus or coach occupant101 (2.3%)
  • Van occupant89 (2.1%)
  • Other vehicle occupant24 (0.6%)
  • Goods vehicle occupant (over 3.5 tonnes)23 (0.5%)
  • Taxi or private hire car occupant22 (0.5%)
  • Minibus occupant20 (0.5%)
  • Other9 (0.2%)
  • Not recorded3 (0.1%)

Source: Department for Transport, STATS19 road safety data

NP12 road accidents by year

Collisions and casualties in NP12, 1979 to 2025

Collisions in NP12 peaked at 107 in 1983; 2025 had 29.

  • Collisions
  • Collisions in 2025: 29
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
20252933
20242935
20233448
20223851
20213140
20203449
20193553
20183246
20174158
20163857
20153650
20145072
20134968
20123343
20113040
20104672
20094574
20085796
20074669
20066195
20055388
200482112
200398143
200281112
200179112
200091135
199994130
199880116
199780119
199698146
199583130
199486125
199385117
199285109
199182102
19907894
198998122
198888115
198789118
198678101
198588125
198488102
1983107122
198280107
198199142
198086121
1979100123

Map of recent crashes in NP12

Map of the 24 most recent crashes in NP12

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

  • 24 crashes
  • Serious
  • Slight

Recent road crashes in NP12

The 24 most recent collisions in NP12 happened between 10 February and 25 December 2025.

Severity

Crashes by road in NP12

The A4048 has the most collisions in NP12, 687 of 3,130 (22%), followed by the B4251 (301).

Collisions in NP12 on each road, 1979 to 2025
RankRoadCollisionsCasualtiesFatalSerious
1stA404868796816137
2ndB4251301402673
3rdA4049286458558
4thA472274382349
5thA469159250438
6thB4254142203119
7thB425297128319
8thB451169107312
9thA44500
10thB44400

Council areas covering NP12

Collisions in NP12 were recorded in 2 council areas. Caerphilly has 3,120 of 3,130 (99.7%).

Collisions in NP12 by council area, 1979 to 2025
RankCouncil areaCollisionsCasualtiesFatalSerious
1stCaerphilly3,1204,31851610
2ndBlaenau Gwent81512

Towns in NP12

Collisions in NP12 were recorded in 6 towns, led by Blackwood (906) and Pontllanfraith (563).