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CrashStats

A4240 accidents: crash map and statistics

Police recorded 216 collisions on the A4240 from 1993 to 2024, with 290 casualties. Of those crashes, 3 were fatal and 18 serious, and 3 people were killed.

No collisions were recorded on the A4240 in 2025, after 2 in 2024.

Collisions since 1993
216
3,146th highest of 4,923 roads
Casualties
290
1.34 per collision
Fatal collisions
3
3 people killed
Serious collisions
18
21 seriously injured
Collisions in 2025
0
2 in 2024
Casualties in 2025
0
4 in 2024

Crash severity on the A4240

On the A4240, 1.4% of collisions were fatal and 8.3% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1993 to 2024

  • Fatal31.4%
  • Serious188.3%
  • Slight19590%

Where the A4240 ranks among 4,923 roads

Most collisions
3,146th
Most casualties
3,164th
Most fatal collisions
3,114th
Most serious collisions
4,133rd

A4240 accidents by year

Collisions on the A4240 peaked at 17 in 2006; none were recorded in 2025.

Collisions and casualties on the A4240, 1993 to 2025

  • Collisions
  • Collisions in 2025
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
202500
202424
202322
202244
202133
202056
201911
20181011
20171012
2016911
201567
201447
201368
2012912
20111014
201035
2009710
2008710
2007818
20061720
20051114
20041419
20031012
20021012
20011318
20001520
199914
199811
19971010
199635
199536
199412
199312

When crashes happen on the A4240

Friday has the most collisions on the A4240 (44), and 3pm to 6pm is the busiest time of day (61).

Collisions by day of the week

  • Monday38 (18%)
  • Tuesday33 (15%)
  • Wednesday27 (13%)
  • Thursday25 (12%)
  • Friday44 (20%)
  • Saturday28 (13%)
  • Sunday21 (9.7%)

Collisions by time of day

  • Midnight to 3am9 (4.2%)
  • 3am to 6am3 (1.4%)
  • 6am to 9am19 (8.8%)
  • 9am to noon38 (18%)
  • Noon to 3pm39 (18%)
  • 3pm to 6pm61 (28%)
  • 6pm to 9pm27 (13%)
  • 9pm to midnight20 (9.3%)

Collisions by month

  • January14 (6.5%)
  • February16 (7.4%)
  • March26 (12%)
  • April21 (9.7%)
  • May15 (6.9%)
  • June17 (7.9%)
  • July26 (12%)
  • August20 (9.3%)
  • September22 (10%)
  • October8 (3.7%)
  • November19 (8.8%)
  • December12 (5.6%)

Light conditions at the time

  • Daylight168 (78%)
  • Dark, street lights lit38 (18%)
  • Dark, street lights unlit5 (2.3%)
  • Dark, lighting unknown3 (1.4%)
  • Dark, no street lighting2 (0.9%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in A4240 crashes

On the A4240, 96% of collisions happened where the speed limit was 30 mph and 77% on a dry road surface.

Speed limit at the scene

  • 20 mph6 (2.8%)
  • 30 mph207 (96%)
  • 40 mph2 (0.9%)
  • 50 mph1 (0.5%)

Weather at the time

  • Fine, no high winds175 (81%)
  • Raining, no high winds20 (9.3%)
  • Fine with high winds4 (1.9%)
  • Raining with high winds2 (0.9%)
  • Other4 (1.9%)
  • Not recorded11 (5.1%)

Road surface

  • Dry166 (77%)
  • Wet or damp47 (22%)
  • Frost or ice1 (0.5%)
  • Oil or diesel1 (0.5%)
  • Snow1 (0.5%)

Type of road

  • Single carriageway200 (93%)
  • Roundabout11 (5.1%)
  • Dual carriageway5 (2.3%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in A4240 crashes

Car occupants make up 61% of the people killed or injured on the A4240, followed by pedestrians (18%).

Casualties by road user

  • Car occupant176 (61%)
  • Pedestrian51 (18%)
  • Motorcyclist39 (13%)
  • Cyclist13 (4.5%)
  • Bus or coach occupant4 (1.4%)
  • Other vehicle occupant4 (1.4%)
  • Goods vehicle occupant (over 3.5 tonnes)2 (0.7%)
  • Mobility scooter rider1 (0.3%)

Vehicles involved

  • Car338 (81%)
  • Motorcycle38 (9.1%)
  • Pedal cycle13 (3.1%)
  • Van or goods vehicle up to 3.5 tonnes12 (2.9%)
  • Bus or coach6 (1.4%)
  • Other vehicle5 (1.2%)
  • Other6 (1.4%)
  • Not recorded1 (0.2%)

Casualties by age

  • 0 to 53 (1%)
  • 6 to 109 (3.1%)
  • 11 to 1522 (7.6%)
  • 16 to 2032 (11%)
  • 21 to 2531 (11%)
  • 26 to 3555 (19%)
  • 36 to 4543 (15%)
  • 46 to 5533 (11%)
  • 56 to 6536 (12%)
  • 66 to 7510 (3.4%)
  • Over 7515 (5.2%)
  • Not recorded1 (0.3%)

Drivers, passengers and pedestrians

  • Driver or rider182 (63%)
  • Passenger57 (20%)
  • Pedestrian51 (18%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the A4240

Map of the 25 most recent crashes on the A4240

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

  • 25 crashes
  • Serious
  • Slight

A4240 crashes by council area

All 216 collisions on the A4240 were in Swansea.

Collisions on the A4240 in each area, 1993 to 2024
RankAreaCollisionsCasualtiesFatalSerious
1stSwansea216290318

A4240 crashes by town

Collisions on the A4240 were recorded in 3 towns and built-up areas, led by Gorseinon (126) and Penllergaer (44).

Recent crashes on the A4240

These are the 25 most recent collisions on the A4240, from 30 April 2018 to 22 August 2024.

Severity