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CrashStats

B4600 accidents: crash map and statistics

Police recorded 276 collisions on the B4600 from 1981 to 2025, with 397 casualties. Of those crashes, 6 were fatal and 40 serious, and 7 people were killed.

In 2025 there were 3 collisions on the B4600, level with 2024, with 3 casualties.

Collisions since 1981
276
2,814th highest of 4,923 roads
Casualties
397
1.44 per collision
Fatal collisions
6
7 people killed
Serious collisions
40
43 seriously injured
Collisions in 2025
3
Level with 2024
Casualties in 2025
3
Down 25% on 2024

Crash severity on the B4600

On the B4600, 2.2% of collisions were fatal and 14% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1981 to 2025

  • Fatal62.2%
  • Serious4014%
  • Slight23083%

Where the B4600 ranks among 4,923 roads

Most collisions
2,814th
Most casualties
2,740th
Most fatal collisions
2,299th
Most serious collisions
3,266th

B4600 accidents by year

Collisions on the B4600 peaked at 18 in 1985 and were down to 3 in 2025.

Collisions and casualties on the B4600, 1981 to 2025

  • Collisions
  • Collisions in 2025: 3
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
202533
202434
202334
202222
202137
202057
201922
201867
201722
201635
201544
201445
201346
201246
201123
201044
2009710
2008811
2007911
200658
200556
200468
2003911
20021361
200188
2000713
19991114
199899
199767
199679
199556
199434
1993811
199223
199111
199058
198955
19881726
198788
19861114
19851819
19841011
1983910
1982913
198111

When crashes happen on the B4600

Thursday has the most collisions on the B4600 (48), and 3pm to 6pm is the busiest time of day (79).

Collisions by day of the week

  • Monday45 (16%)
  • Tuesday38 (14%)
  • Wednesday33 (12%)
  • Thursday48 (17%)
  • Friday39 (14%)
  • Saturday45 (16%)
  • Sunday28 (10%)

Collisions by time of day

  • Midnight to 3am16 (5.8%)
  • 3am to 6am2 (0.7%)
  • 6am to 9am26 (9.4%)
  • 9am to noon39 (14%)
  • Noon to 3pm44 (16%)
  • 3pm to 6pm79 (29%)
  • 6pm to 9pm46 (17%)
  • 9pm to midnight24 (8.7%)

Collisions by month

  • January20 (7.2%)
  • February18 (6.5%)
  • March24 (8.7%)
  • April25 (9.1%)
  • May13 (4.7%)
  • June23 (8.3%)
  • July24 (8.7%)
  • August24 (8.7%)
  • September24 (8.7%)
  • October25 (9.1%)
  • November23 (8.3%)
  • December33 (12%)

Light conditions at the time

  • Daylight201 (73%)
  • Dark, street lights lit70 (25%)
  • Dark, lighting unknown2 (0.7%)
  • Dark, street lights unlit2 (0.7%)
  • Dark, no street lighting1 (0.4%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in B4600 crashes

On the B4600, 92% of collisions happened where the speed limit was 30 mph and 73% on a dry road surface.

Speed limit at the scene

  • 20 mph4 (1.4%)
  • 30 mph255 (92%)
  • 40 mph9 (3.3%)
  • 50 mph1 (0.4%)
  • 60 mph5 (1.8%)
  • 70 mph2 (0.7%)

Weather at the time

  • Fine, no high winds225 (82%)
  • Raining, no high winds33 (12%)
  • Fine with high winds5 (1.8%)
  • Raining with high winds3 (1.1%)
  • Other9 (3.3%)
  • Not recorded1 (0.4%)

Road surface

  • Dry202 (73%)
  • Wet or damp73 (26%)
  • Frost or ice1 (0.4%)

Type of road

  • Single carriageway249 (90%)
  • Roundabout15 (5.4%)
  • One way street or slip road7 (2.5%)
  • Dual carriageway3 (1.1%)
  • Not recorded2 (0.7%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in B4600 crashes

Car occupants make up 50% of the people killed or injured on the B4600, followed by pedestrians (22%).

Casualties by road user

  • Car occupant200 (50%)
  • Pedestrian89 (22%)
  • Bus or coach occupant54 (14%)
  • Motorcyclist27 (6.8%)
  • Cyclist17 (4.3%)
  • Taxi or private hire car occupant5 (1.3%)
  • Van occupant3 (0.8%)
  • Other2 (0.5%)

Vehicles involved

  • Car363 (79%)
  • Motorcycle27 (5.9%)
  • Pedal cycle19 (4.1%)
  • Bus or coach16 (3.5%)
  • Van or goods vehicle up to 3.5 tonnes14 (3.1%)
  • Taxi or private hire car11 (2.4%)
  • Goods vehicle over 3.5 tonnes5 (1.1%)
  • Other4 (0.9%)

Casualties by age

  • 0 to 517 (4.3%)
  • 6 to 1047 (12%)
  • 11 to 1533 (8.3%)
  • 16 to 2054 (14%)
  • 21 to 2556 (14%)
  • 26 to 3548 (12%)
  • 36 to 4540 (10%)
  • 46 to 5537 (9.3%)
  • 56 to 6529 (7.3%)
  • 66 to 7513 (3.3%)
  • Over 7523 (5.8%)

Drivers, passengers and pedestrians

  • Driver or rider174 (44%)
  • Passenger134 (34%)
  • Pedestrian89 (22%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the B4600

Map of the 25 most recent crashes on the B4600

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

  • 25 crashes
  • Fatal
  • Serious
  • Slight

B4600 crashes by council area

All 276 collisions on the B4600 were in Caerphilly.

Collisions on the B4600 in each area, 1981 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stCaerphilly276397640

B4600 crashes by town

Of the 276 collisions on the B4600, 265 were in the built-up area of Caerphilly.

Recent crashes on the B4600

These are the 25 most recent collisions on the B4600, from 21 September 2018 to 18 December 2025.

Severity