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CrashStats

B4318 accidents: crash map and statistics

Police recorded 219 collisions on the B4318 from 1979 to 2025, with 378 casualties. Of those crashes, 2 were fatal and 53 serious, and 2 people were killed.

In 2025 there were 3 collisions on the B4318, level with 2024, with 4 casualties.

Collisions since 1979
219
3,127th highest of 4,923 roads
Casualties
378
1.73 per collision
Fatal collisions
2
2 people killed
Serious collisions
53
85 seriously injured
Collisions in 2025
3
Level with 2024
Casualties in 2025
4
Down 33% on 2024

Crash severity on the B4318

On the B4318, 0.9% of collisions were fatal and 24% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal20.9%
  • Serious5324%
  • Slight16475%

Where the B4318 ranks among 4,923 roads

Most collisions
3,127th
Most casualties
2,805th
Most fatal collisions
3,485th
Most serious collisions
2,886th

B4318 accidents by year

Collisions on the B4318 peaked at 9 in 1991 and were down to 3 in 2025.

Collisions and casualties on the B4318, 1979 to 2025

  • Collisions
  • Collisions in 2025: 3
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
202534
202436
202344
202245
202122
202022
201945
201822
201733
201648
201534
2014718
201347
201257
201158
201055
200922
2008810
2007718
200659
200547
2004510
200368
2002613
200144
200059
199969
199855
199758
199657
199511
199489
199333
1992610
1991911
1990752
198933
1988714
1987810
198634
198546
198411
198322
198267
1981715
198044
1979717

When crashes happen on the B4318

Sunday has the most collisions on the B4318 (42), and 9am to noon is the busiest time of day (50).

Collisions by day of the week

  • Monday27 (12%)
  • Tuesday29 (13%)
  • Wednesday36 (16%)
  • Thursday33 (15%)
  • Friday27 (12%)
  • Saturday25 (11%)
  • Sunday42 (19%)

Collisions by time of day

  • Midnight to 3am11 (5%)
  • 3am to 6am2 (0.9%)
  • 6am to 9am26 (12%)
  • 9am to noon50 (23%)
  • Noon to 3pm45 (21%)
  • 3pm to 6pm46 (21%)
  • 6pm to 9pm20 (9.1%)
  • 9pm to midnight19 (8.7%)

Collisions by month

  • January11 (5%)
  • February14 (6.4%)
  • March17 (7.8%)
  • April23 (11%)
  • May23 (11%)
  • June21 (9.6%)
  • July15 (6.8%)
  • August27 (12%)
  • September22 (10%)
  • October16 (7.3%)
  • November11 (5%)
  • December19 (8.7%)

Light conditions at the time

  • Daylight167 (76%)
  • Dark, no street lighting44 (20%)
  • Dark, street lights lit5 (2.3%)
  • Dark, lighting unknown2 (0.9%)
  • Not recorded1 (0.5%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in B4318 crashes

On the B4318, 81% of collisions happened where the speed limit was 60 mph and 49% on a dry road surface.

Speed limit at the scene

  • 20 mph1 (0.5%)
  • 30 mph31 (14%)
  • 40 mph8 (3.7%)
  • 50 mph2 (0.9%)
  • 60 mph177 (81%)

Weather at the time

  • Fine, no high winds136 (62%)
  • Raining, no high winds57 (26%)
  • Raining with high winds4 (1.8%)
  • Fine with high winds3 (1.4%)
  • Other17 (7.8%)
  • Not recorded2 (0.9%)

Road surface

  • Dry107 (49%)
  • Wet or damp101 (46%)
  • Frost or ice6 (2.7%)
  • Flood over 3cm deep3 (1.4%)
  • Snow1 (0.5%)
  • Not recorded1 (0.5%)

Type of road

  • Single carriageway211 (96%)
  • Dual carriageway4 (1.8%)
  • One way street or slip road2 (0.9%)
  • Roundabout2 (0.9%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in B4318 crashes

Car occupants make up 68% of the people killed or injured on the B4318, followed by bus or coach occupants (13%).

Casualties by road user

  • Car occupant257 (68%)
  • Bus or coach occupant49 (13%)
  • Motorcyclist26 (6.9%)
  • Pedestrian17 (4.5%)
  • Goods vehicle occupant (over 3.5 tonnes)11 (2.9%)
  • Van occupant10 (2.6%)
  • Taxi or private hire car occupant5 (1.3%)
  • Other3 (0.8%)

Vehicles involved

  • Car308 (75%)
  • Goods vehicle over 3.5 tonnes29 (7.1%)
  • Motorcycle24 (5.9%)
  • Van or goods vehicle up to 3.5 tonnes20 (4.9%)
  • Bus or coach13 (3.2%)
  • Other vehicle7 (1.7%)
  • Pedal cycle4 (1%)
  • Other5 (1.2%)

Casualties by age

  • 0 to 54 (1.1%)
  • 6 to 1013 (3.4%)
  • 11 to 1538 (10%)
  • 16 to 2093 (25%)
  • 21 to 2547 (12%)
  • 26 to 3546 (12%)
  • 36 to 4555 (15%)
  • 46 to 5539 (10%)
  • 56 to 6521 (5.6%)
  • 66 to 7518 (4.8%)
  • Over 754 (1.1%)

Drivers, passengers and pedestrians

  • Driver or rider211 (56%)
  • Passenger150 (40%)
  • Pedestrian17 (4.5%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the B4318

Map of the 25 most recent crashes on the B4318

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

  • 25 crashes
  • Serious
  • Slight

B4318 crashes by council area

Of the 219 collisions on the B4318, 217 were in Pembrokeshire.

Collisions on the B4318 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stPembrokeshire217375252

B4318 crashes by town

Of the 219 collisions on the B4318, 26 were in the built-up area of Tenby.

Recent crashes on the B4318

These are the 25 most recent collisions on the B4318, from 22 August 2017 to 13 August 2025.

Severity