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CrashStats

A4120 accidents: crash map and statistics

Police recorded 187 collisions on the A4120 from 1979 to 2025, with 274 casualties. Of those crashes, 2 were fatal and 47 serious, and 2 people were killed.

In 2025 there was 1 collision on the A4120, down 75% from 4 in 2024, with 1 casualty.

Collisions since 1979
187
3,315th highest of 4,923 roads
Casualties
274
1.47 per collision
Fatal collisions
2
2 people killed
Serious collisions
47
55 seriously injured
Collisions in 2025
1
Down 75% on 2024
Casualties in 2025
1
Down 80% on 2024

Crash severity on the A4120

On the A4120, 1.1% of collisions were fatal and 25% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal21.1%
  • Serious4725%
  • Slight13874%

Where the A4120 ranks among 4,923 roads

Most collisions
3,315th
Most casualties
3,236th
Most fatal collisions
3,485th
Most serious collisions
3,056th

A4120 accidents by year

Collisions on the A4120 peaked at 8 in 2005 and were down to 1 in 2025.

Collisions and casualties on the A4120, 1979 to 2025

  • Collisions
  • Collisions in 2025: 1
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
202511
202445
202323
202233
202122
202023
201922
201811
201746
201645
2015610
201459
201347
201233
201144
2010710
200946
200844
200734
200645
2005811
2004611
200356
2002815
200156
200022
1999710
199835
199733
1996812
199546
199467
199344
199245
199177
199011
198937
198836
198735
198669
1985315
198433
198336
198223
198145
198058
197923

When crashes happen on the A4120

Wednesday has the most collisions on the A4120 (32), and noon to 3pm is the busiest time of day (51).

Collisions by day of the week

  • Monday30 (16%)
  • Tuesday24 (13%)
  • Wednesday32 (17%)
  • Thursday24 (13%)
  • Friday31 (17%)
  • Saturday26 (14%)
  • Sunday20 (11%)

Collisions by time of day

  • Midnight to 3am7 (3.7%)
  • 3am to 6am4 (2.1%)
  • 6am to 9am12 (6.4%)
  • 9am to noon15 (8%)
  • Noon to 3pm51 (27%)
  • 3pm to 6pm45 (24%)
  • 6pm to 9pm30 (16%)
  • 9pm to midnight23 (12%)

Collisions by month

  • January11 (5.9%)
  • February11 (5.9%)
  • March20 (11%)
  • April17 (9.1%)
  • May20 (11%)
  • June21 (11%)
  • July14 (7.5%)
  • August20 (11%)
  • September21 (11%)
  • October12 (6.4%)
  • November11 (5.9%)
  • December9 (4.8%)

Light conditions at the time

  • Daylight141 (75%)
  • Dark, no street lighting27 (14%)
  • Dark, street lights lit17 (9.1%)
  • Dark, street lights unlit1 (0.5%)
  • Not recorded1 (0.5%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in A4120 crashes

On the A4120, 53% of collisions happened where the speed limit was 60 mph and 71% on a dry road surface.

Speed limit at the scene

  • 20 mph3 (1.6%)
  • 30 mph84 (45%)
  • 40 mph1 (0.5%)
  • 60 mph99 (53%)

Weather at the time

  • Fine, no high winds150 (80%)
  • Raining, no high winds19 (10%)
  • Fine with high winds5 (2.7%)
  • Raining with high winds2 (1.1%)
  • Other7 (3.7%)
  • Not recorded4 (2.1%)

Road surface

  • Dry132 (71%)
  • Wet or damp49 (26%)
  • Frost or ice3 (1.6%)
  • Snow2 (1.1%)
  • Not recorded1 (0.5%)

Type of road

  • Single carriageway173 (93%)
  • Roundabout10 (5.3%)
  • Dual carriageway3 (1.6%)
  • One way street or slip road1 (0.5%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in A4120 crashes

Car occupants make up 63% of the people killed or injured on the A4120, followed by motorcyclists (16%).

Casualties by road user

  • Car occupant173 (63%)
  • Motorcyclist45 (16%)
  • Pedestrian21 (7.7%)
  • Minibus occupant13 (4.7%)
  • Cyclist8 (2.9%)
  • Other vehicle occupant6 (2.2%)
  • Van occupant4 (1.5%)
  • Other4 (1.5%)

Vehicles involved

  • Car230 (71%)
  • Motorcycle42 (13%)
  • Van or goods vehicle up to 3.5 tonnes13 (4%)
  • Goods vehicle over 3.5 tonnes11 (3.4%)
  • Pedal cycle9 (2.8%)
  • Other vehicle7 (2.2%)
  • Minibus5 (1.5%)
  • Other8 (2.5%)

Casualties by age

  • 0 to 55 (1.8%)
  • 6 to 103 (1.1%)
  • 11 to 1510 (3.6%)
  • 16 to 2055 (20%)
  • 21 to 2541 (15%)
  • 26 to 3552 (19%)
  • 36 to 4534 (12%)
  • 46 to 5529 (11%)
  • 56 to 6520 (7.3%)
  • 66 to 7515 (5.5%)
  • Over 7510 (3.6%)

Drivers, passengers and pedestrians

  • Driver or rider158 (58%)
  • Passenger95 (35%)
  • Pedestrian21 (7.7%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the A4120

Map of the 25 most recent crashes on the A4120

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

  • 25 crashes
  • Fatal
  • Serious
  • Slight

A4120 crashes by council area

All 187 collisions on the A4120 were in Ceredigion.

Collisions on the A4120 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stCeredigion187274247

A4120 crashes by town

Collisions on the A4120 were recorded in 2 towns and built-up areas, led by Aberystwyth (37) and Llanbadarn Fawr (20).

Recent crashes on the A4120

These are the 25 most recent collisions on the A4120, from 25 January 2016 to 23 September 2025.

Severity