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CrashStats

B4242 accidents: crash map and statistics

Police recorded 173 collisions on the B4242 from 1979 to 2025, with 268 casualties. Of those crashes, 7 were fatal and 40 serious, and 7 people were killed.

In 2025 there was 1 collision on the B4242, up from none in 2024, with 1 casualty.

Collisions since 1979
173
3,420th highest of 4,923 roads
Casualties
268
1.55 per collision
Fatal collisions
7
7 people killed
Serious collisions
40
51 seriously injured
Collisions in 2025
1
Up from none in 2024
Casualties in 2025
1
Up from none in 2024

Crash severity on the B4242

On the B4242, 4% of collisions were fatal and 23% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal74%
  • Serious4023%
  • Slight12673%

Where the B4242 ranks among 4,923 roads

Most collisions
3,420th
Most casualties
3,264th
Most fatal collisions
2,103rd
Most serious collisions
3,266th

B4242 accidents by year

Collisions on the B4242 peaked at 9 in 2000 and were down to 1 in 2025.

Collisions and casualties on the B4242, 1979 to 2025

  • Collisions
  • Collisions in 2025: 1
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
202511
202400
202322
202223
202137
202000
201934
201811
201713
201644
201523
201422
2013715
201222
201147
2010611
200925
200834
200769
200611
2005812
200447
200345
2002811
200159
2000915
199959
199848
199767
199600
199522
199422
199315
199222
199145
199055
198933
198878
198723
198613
1985614
198437
198355
1982813
1981813
198023
197978

When crashes happen on the B4242

Saturday has the most collisions on the B4242 (39), and 3pm to 6pm is the busiest time of day (44).

Collisions by day of the week

  • Monday20 (12%)
  • Tuesday22 (13%)
  • Wednesday24 (14%)
  • Thursday17 (9.8%)
  • Friday28 (16%)
  • Saturday39 (23%)
  • Sunday23 (13%)

Collisions by time of day

  • Midnight to 3am7 (4%)
  • 3am to 6am0 (0%)
  • 6am to 9am11 (6.4%)
  • 9am to noon24 (14%)
  • Noon to 3pm36 (21%)
  • 3pm to 6pm44 (25%)
  • 6pm to 9pm28 (16%)
  • 9pm to midnight23 (13%)

Collisions by month

  • January12 (6.9%)
  • February8 (4.6%)
  • March11 (6.4%)
  • April24 (14%)
  • May13 (7.5%)
  • June21 (12%)
  • July14 (8.1%)
  • August15 (8.7%)
  • September16 (9.2%)
  • October13 (7.5%)
  • November8 (4.6%)
  • December18 (10%)

Light conditions at the time

  • Daylight125 (72%)
  • Dark, street lights lit34 (20%)
  • Dark, no street lighting11 (6.4%)
  • Dark, street lights unlit2 (1.2%)
  • Dark, lighting unknown1 (0.6%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in B4242 crashes

On the B4242, 69% of collisions happened where the speed limit was 30 mph and 61% on a dry road surface.

Speed limit at the scene

  • 20 mph1 (0.6%)
  • 30 mph119 (69%)
  • 40 mph10 (5.8%)
  • 50 mph3 (1.7%)
  • 60 mph37 (21%)
  • 70 mph3 (1.7%)

Weather at the time

  • Fine, no high winds135 (78%)
  • Raining, no high winds27 (16%)
  • Raining with high winds5 (2.9%)
  • Fine with high winds1 (0.6%)
  • Other3 (1.7%)
  • Not recorded2 (1.2%)

Road surface

  • Dry106 (61%)
  • Wet or damp64 (37%)
  • Frost or ice3 (1.7%)

Type of road

  • Single carriageway162 (94%)
  • Dual carriageway9 (5.2%)
  • One way street or slip road1 (0.6%)
  • Not recorded1 (0.6%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in B4242 crashes

Car occupants make up 63% of the people killed or injured on the B4242, followed by motorcyclists (13%).

Casualties by road user

  • Car occupant169 (63%)
  • Motorcyclist34 (13%)
  • Pedestrian34 (13%)
  • Cyclist19 (7.1%)
  • Van occupant5 (1.9%)
  • Bus or coach occupant3 (1.1%)
  • Minibus occupant2 (0.7%)
  • Other vehicle occupant2 (0.7%)

Vehicles involved

  • Car226 (73%)
  • Motorcycle31 (10%)
  • Pedal cycle19 (6.1%)
  • Van or goods vehicle up to 3.5 tonnes12 (3.9%)
  • Bus or coach8 (2.6%)
  • Goods vehicle over 3.5 tonnes7 (2.3%)
  • Other vehicle3 (1%)
  • Other3 (1%)

Casualties by age

  • 0 to 58 (3%)
  • 6 to 1012 (4.5%)
  • 11 to 1514 (5.2%)
  • 16 to 2058 (22%)
  • 21 to 2547 (18%)
  • 26 to 3536 (13%)
  • 36 to 4530 (11%)
  • 46 to 5521 (7.8%)
  • 56 to 6519 (7.1%)
  • 66 to 7511 (4.1%)
  • Over 7512 (4.5%)

Drivers, passengers and pedestrians

  • Driver or rider146 (54%)
  • Passenger88 (33%)
  • Pedestrian34 (13%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the B4242

Map of the 25 most recent crashes on the B4242

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

  • 25 crashes
  • Fatal
  • Serious
  • Slight

B4242 crashes by council area

Collisions on the B4242 were recorded in 2 council areas. Neath Port Talbot has the most, with 163, followed by Powys (8).

Collisions on the B4242 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stNeath Port Talbot163249637
2ndPowys81513

B4242 crashes by town

Of the 173 collisions on the B4242, 63 were in the built-up area of Glyn-neath.

Recent crashes on the B4242

These are the 25 most recent collisions on the B4242, from 5 May 2013 to 5 July 2025.

Severity