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CrashStats

B4433 accidents: crash map and statistics

Police recorded 139 collisions on the B4433 from 1979 to 2024, with 182 casualties. Of those crashes, 3 were fatal and 20 serious, and 4 people were killed.

No collisions were recorded on the B4433 in 2025, after 1 in 2024.

Collisions since 1979
139
3,682nd highest of 4,923 roads
Casualties
182
1.31 per collision
Fatal collisions
3
4 people killed
Serious collisions
20
21 seriously injured
Collisions in 2025
0
1 in 2024
Casualties in 2025
0
1 in 2024

Crash severity on the B4433

On the B4433, 2.2% of collisions were fatal and 14% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2024

  • Fatal32.2%
  • Serious2014%
  • Slight11683%

Where the B4433 ranks among 4,923 roads

Most collisions
3,682nd
Most casualties
3,727th
Most fatal collisions
3,114th
Most serious collisions
4,033rd

B4433 accidents by year

Collisions on the B4433 peaked at 7 in 1988; none were recorded in 2025.

Collisions and casualties on the B4433, 1979 to 2025

  • Collisions
  • Collisions in 2025
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
202500
202411
202311
202222
202159
202014
201911
201822
201700
201611
201544
201435
201326
2012410
201111
201011
200923
200822
200734
200624
200534
200467
200366
200211
200135
200011
199900
199811
199711
199622
199555
199444
199346
199211
199111
199056
198956
198877
198778
198655
198567
198444
198322
198277
1981410
198046
197968

When crashes happen on the B4433

Sunday has the most collisions on the B4433 (36), and 9pm to midnight is the busiest time of day (38).

Collisions by day of the week

  • Monday13 (9.4%)
  • Tuesday10 (7.2%)
  • Wednesday12 (8.6%)
  • Thursday17 (12%)
  • Friday24 (17%)
  • Saturday27 (19%)
  • Sunday36 (26%)

Collisions by time of day

  • Midnight to 3am20 (14%)
  • 3am to 6am1 (0.7%)
  • 6am to 9am8 (5.8%)
  • 9am to noon9 (6.5%)
  • Noon to 3pm13 (9.4%)
  • 3pm to 6pm23 (17%)
  • 6pm to 9pm27 (19%)
  • 9pm to midnight38 (27%)

Collisions by month

  • January5 (3.6%)
  • February8 (5.8%)
  • March11 (7.9%)
  • April9 (6.5%)
  • May14 (10%)
  • June11 (7.9%)
  • July16 (12%)
  • August20 (14%)
  • September15 (11%)
  • October9 (6.5%)
  • November11 (7.9%)
  • December10 (7.2%)

Light conditions at the time

  • Daylight72 (52%)
  • Dark, street lights lit55 (40%)
  • Dark, no street lighting6 (4.3%)
  • Dark, street lights unlit4 (2.9%)
  • Dark, lighting unknown2 (1.4%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in B4433 crashes

On the B4433, 96% of collisions happened where the speed limit was 30 mph and 75% on a dry road surface.

Speed limit at the scene

  • 20 mph1 (0.7%)
  • 30 mph133 (96%)
  • 40 mph3 (2.2%)
  • 60 mph2 (1.4%)

Weather at the time

  • Fine, no high winds116 (83%)
  • Raining, no high winds12 (8.6%)
  • Fine with high winds7 (5%)
  • Fog or mist2 (1.4%)
  • Snowing, no high winds1 (0.7%)
  • Not recorded1 (0.7%)

Road surface

  • Dry104 (75%)
  • Wet or damp34 (24%)
  • Snow1 (0.7%)

Type of road

  • Single carriageway128 (92%)
  • Dual carriageway8 (5.8%)
  • Roundabout2 (1.4%)
  • One way street or slip road1 (0.7%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in B4433 crashes

Car occupants make up 48% of the people killed or injured on the B4433, followed by pedestrians (34%).

Casualties by road user

  • Car occupant87 (48%)
  • Pedestrian61 (34%)
  • Motorcyclist24 (13%)
  • Bus or coach occupant4 (2.2%)
  • Cyclist4 (2.2%)
  • Taxi or private hire car occupant1 (0.5%)
  • Van occupant1 (0.5%)

Vehicles involved

  • Car180 (81%)
  • Motorcycle22 (9.9%)
  • Van or goods vehicle up to 3.5 tonnes8 (3.6%)
  • Bus or coach5 (2.2%)
  • Pedal cycle4 (1.8%)
  • Taxi or private hire car2 (0.9%)
  • Goods vehicle over 3.5 tonnes1 (0.4%)
  • Minibus1 (0.4%)

Casualties by age

  • 0 to 53 (1.6%)
  • 6 to 104 (2.2%)
  • 11 to 1510 (5.5%)
  • 16 to 2064 (35%)
  • 21 to 2528 (15%)
  • 26 to 3521 (12%)
  • 36 to 4515 (8.2%)
  • 46 to 5511 (6%)
  • 56 to 659 (4.9%)
  • 66 to 758 (4.4%)
  • Over 758 (4.4%)
  • Not recorded1 (0.5%)

Drivers, passengers and pedestrians

  • Driver or rider73 (40%)
  • Pedestrian61 (34%)
  • Passenger48 (26%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the B4433

Map of the 25 most recent crashes on the B4433

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

  • 25 crashes
  • Serious
  • Slight

B4433 crashes by council area

Of the 139 collisions on the B4433, 138 were in Swansea.

Collisions on the B4433 in each area, 1979 to 2024
RankAreaCollisionsCasualtiesFatalSerious
1stSwansea138181320

B4433 crashes by town

Of the 139 collisions on the B4433, 90 were in the built-up area of Swansea.

Recent crashes on the B4433

These are the 25 most recent collisions on the B4433, from 12 September 2012 to 26 August 2024.

Severity