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CrashStats

B4436 accidents: crash map and statistics

Police recorded 306 collisions on the B4436 from 1979 to 2025, with 451 casualties. Of those crashes, 6 were fatal and 60 serious, and 7 people were killed.

In 2025 there was 1 collision on the B4436, level with 2024, with 1 casualty.

Collisions since 1979
306
2,661st highest of 4,923 roads
Casualties
451
1.47 per collision
Fatal collisions
6
7 people killed
Serious collisions
60
74 seriously injured
Collisions in 2025
1
Level with 2024
Casualties in 2025
1
Level with 2024

Crash severity on the B4436

On the B4436, 2% of collisions were fatal and 20% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal62%
  • Serious6020%
  • Slight24078%

Where the B4436 ranks among 4,923 roads

Most collisions
2,661st
Most casualties
2,553rd
Most fatal collisions
2,299th
Most serious collisions
2,705th

B4436 accidents by year

Collisions on the B4436 peaked at 19 in 1990 and were down to 1 in 2025.

Collisions and casualties on the B4436, 1979 to 2025

  • Collisions
  • Collisions in 2025: 1
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
202511
202411
202311
202225
202133
2020611
201945
201868
201744
201667
201557
2014511
201333
201289
201111
201045
200923
200845
200749
200656
200557
200468
200345
20021014
2001914
200056
199900
199833
199700
199623
1995812
1994610
199377
1992817
199166
19901933
19891527
19881320
19871317
19861318
19851322
19841736
1983910
19821115
1981810
19801014
19791112

When crashes happen on the B4436

Sunday has the most collisions on the B4436 (49), and 3pm to 6pm is the busiest time of day (76).

Collisions by day of the week

  • Monday44 (14%)
  • Tuesday41 (13%)
  • Wednesday41 (13%)
  • Thursday40 (13%)
  • Friday44 (14%)
  • Saturday47 (15%)
  • Sunday49 (16%)

Collisions by time of day

  • Midnight to 3am21 (6.9%)
  • 3am to 6am4 (1.3%)
  • 6am to 9am37 (12%)
  • 9am to noon37 (12%)
  • Noon to 3pm53 (17%)
  • 3pm to 6pm76 (25%)
  • 6pm to 9pm40 (13%)
  • 9pm to midnight38 (12%)

Collisions by month

  • January20 (6.5%)
  • February20 (6.5%)
  • March23 (7.5%)
  • April20 (6.5%)
  • May38 (12%)
  • June24 (7.8%)
  • July31 (10%)
  • August30 (9.8%)
  • September38 (12%)
  • October17 (5.6%)
  • November25 (8.2%)
  • December20 (6.5%)

Light conditions at the time

  • Daylight220 (72%)
  • Dark, street lights lit44 (14%)
  • Dark, no street lighting30 (9.8%)
  • Dark, lighting unknown7 (2.3%)
  • Dark, street lights unlit4 (1.3%)
  • Not recorded1 (0.3%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in B4436 crashes

On the B4436, 62% of collisions happened where the speed limit was 30 mph and 66% on a dry road surface.

Speed limit at the scene

  • 20 mph1 (0.3%)
  • 30 mph189 (62%)
  • 40 mph69 (23%)
  • 50 mph2 (0.7%)
  • 60 mph45 (15%)

Weather at the time

  • Fine, no high winds232 (76%)
  • Raining, no high winds50 (16%)
  • Fine with high winds10 (3.3%)
  • Raining with high winds6 (2%)
  • Other3 (1%)
  • Not recorded5 (1.6%)

Road surface

  • Dry201 (66%)
  • Wet or damp95 (31%)
  • Frost or ice6 (2%)
  • Flood over 3cm deep1 (0.3%)
  • Snow1 (0.3%)
  • Not recorded2 (0.7%)

Type of road

  • Single carriageway298 (97%)
  • Dual carriageway4 (1.3%)
  • One way street or slip road2 (0.7%)
  • Not recorded2 (0.7%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in B4436 crashes

Car occupants make up 71% of the people killed or injured on the B4436, followed by motorcyclists (10%).

Casualties by road user

  • Car occupant320 (71%)
  • Motorcyclist47 (10%)
  • Cyclist29 (6.4%)
  • Pedestrian28 (6.2%)
  • Minibus occupant14 (3.1%)
  • Bus or coach occupant5 (1.1%)
  • Van occupant5 (1.1%)
  • Other vehicle occupant3 (0.7%)

Vehicles involved

  • Car413 (77%)
  • Motorcycle44 (8.3%)
  • Pedal cycle29 (5.4%)
  • Van or goods vehicle up to 3.5 tonnes19 (3.6%)
  • Bus or coach11 (2.1%)
  • Goods vehicle over 3.5 tonnes5 (0.9%)
  • Minibus5 (0.9%)
  • Other7 (1.3%)

Casualties by age

  • 0 to 58 (1.8%)
  • 6 to 106 (1.3%)
  • 11 to 1535 (7.8%)
  • 16 to 20129 (29%)
  • 21 to 2562 (14%)
  • 26 to 3551 (11%)
  • 36 to 4551 (11%)
  • 46 to 5546 (10%)
  • 56 to 6529 (6.4%)
  • 66 to 7517 (3.8%)
  • Over 7517 (3.8%)

Drivers, passengers and pedestrians

  • Driver or rider277 (61%)
  • Passenger146 (32%)
  • Pedestrian28 (6.2%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the B4436

Map of the 25 most recent crashes on the B4436

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

  • 25 crashes
  • Fatal
  • Serious
  • Slight

B4436 crashes by council area

Of the 306 collisions on the B4436, 302 were in Swansea.

Collisions on the B4436 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stSwansea302440659

B4436 crashes by town

Collisions on the B4436 were recorded in 2 towns and built-up areas, led by Swansea (94) and Bishopston (64).

Recent crashes on the B4436

These are the 25 most recent collisions on the B4436, from 2 September 2017 to 19 October 2025.

Severity