Skip to main content
CrashStats

A4049 accidents: crash map and statistics

Police recorded 711 collisions on the A4049 from 1979 to 2025, with 1,056 casualties. Of those crashes, 17 were fatal and 148 serious, and 18 people were killed.

In 2025 there were 10 collisions on the A4049, up 233% from 3 in 2024, with 13 casualties.

Collisions since 1979
711
1,484th highest of 4,923 roads
Casualties
1,056
1.49 per collision
Fatal collisions
17
18 people killed
Serious collisions
148
177 seriously injured
Collisions in 2025
10
Up 233% on 2024
Casualties in 2025
13
Up 117% on 2024

Crash severity on the A4049

On the A4049, 2.4% of collisions were fatal and 21% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal172.4%
  • Serious14821%
  • Slight54677%

Where the A4049 ranks among 4,923 roads

Most collisions
1,484th
Most casualties
1,370th
Most fatal collisions
1,125th
Most serious collisions
1,396th

A4049 accidents by year

Collisions on the A4049 peaked at 30 in 2003 and were down to 10 in 2025.

Collisions and casualties on the A4049, 1979 to 2025

  • Collisions
  • Collisions in 2025: 10
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
20251013
202436
202346
2022913
2021913
202059
2019811
2018610
201768
2016917
201546
20141017
2013614
2012911
201147
2010413
2009510
20082136
2007913
20061320
20052332
20042940
20033042
20021730
20012038
20001517
19991721
19981628
19971825
19962025
19951926
19941126
19932842
19922035
19912026
19901923
19892027
19882124
19872633
19862023
19851524
19841322
19832125
19822131
19812840
19802847
19792231

When crashes happen on the A4049

Friday has the most collisions on the A4049 (119), and 3pm to 6pm is the busiest time of day (179).

Collisions by day of the week

  • Monday108 (15%)
  • Tuesday106 (15%)
  • Wednesday95 (13%)
  • Thursday106 (15%)
  • Friday119 (17%)
  • Saturday114 (16%)
  • Sunday63 (8.9%)

Collisions by time of day

  • Midnight to 3am29 (4.1%)
  • 3am to 6am10 (1.4%)
  • 6am to 9am74 (10%)
  • 9am to noon85 (12%)
  • Noon to 3pm99 (14%)
  • 3pm to 6pm179 (25%)
  • 6pm to 9pm129 (18%)
  • 9pm to midnight106 (15%)

Collisions by month

  • January57 (8%)
  • February55 (7.7%)
  • March58 (8.2%)
  • April51 (7.2%)
  • May48 (6.8%)
  • June46 (6.5%)
  • July55 (7.7%)
  • August54 (7.6%)
  • September67 (9.4%)
  • October88 (12%)
  • November61 (8.6%)
  • December71 (10%)

Light conditions at the time

  • Daylight467 (66%)
  • Dark, street lights lit191 (27%)
  • Dark, street lights unlit29 (4.1%)
  • Dark, no street lighting13 (1.8%)
  • Dark, lighting unknown11 (1.5%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in A4049 crashes

On the A4049, 76% of collisions happened where the speed limit was 30 mph and 61% on a dry road surface.

Speed limit at the scene

  • 20 mph7 (1%)
  • 30 mph538 (76%)
  • 40 mph54 (7.6%)
  • 50 mph30 (4.2%)
  • 60 mph78 (11%)
  • 70 mph4 (0.6%)

Weather at the time

  • Fine, no high winds520 (73%)
  • Raining, no high winds121 (17%)
  • Raining with high winds19 (2.7%)
  • Fine with high winds15 (2.1%)
  • Other33 (4.6%)
  • Not recorded3 (0.4%)

Road surface

  • Dry435 (61%)
  • Wet or damp239 (34%)
  • Frost or ice27 (3.8%)
  • Snow8 (1.1%)
  • Flood over 3cm deep2 (0.3%)

Type of road

  • Single carriageway698 (98%)
  • Dual carriageway8 (1.1%)
  • Roundabout4 (0.6%)
  • One way street or slip road1 (0.1%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in A4049 crashes

Car occupants make up 65% of the people killed or injured on the A4049, followed by pedestrians (17%).

Casualties by road user

  • Car occupant687 (65%)
  • Pedestrian181 (17%)
  • Motorcyclist89 (8.4%)
  • Cyclist32 (3%)
  • Bus or coach occupant23 (2.2%)
  • Van occupant13 (1.2%)
  • Other vehicle occupant10 (0.9%)
  • Other21 (2%)

Vehicles involved

  • Car924 (78%)
  • Motorcycle90 (7.6%)
  • Van or goods vehicle up to 3.5 tonnes47 (4%)
  • Pedal cycle32 (2.7%)
  • Bus or coach29 (2.4%)
  • Goods vehicle over 3.5 tonnes28 (2.4%)
  • Taxi or private hire car17 (1.4%)
  • Other22 (1.9%)

Casualties by age

  • 0 to 526 (2.5%)
  • 6 to 1054 (5.1%)
  • 11 to 1581 (7.7%)
  • 16 to 20223 (21%)
  • 21 to 25141 (13%)
  • 26 to 35178 (17%)
  • 36 to 45137 (13%)
  • 46 to 5593 (8.8%)
  • 56 to 6554 (5.1%)
  • 66 to 7547 (4.5%)
  • Over 7520 (1.9%)
  • Not recorded2 (0.2%)

Drivers, passengers and pedestrians

  • Driver or rider566 (54%)
  • Passenger309 (29%)
  • Pedestrian181 (17%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the A4049

Map of the 25 most recent crashes on the A4049

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

  • 25 crashes
  • Serious
  • Slight

A4049 crashes by council area

Collisions on the A4049 were recorded in 3 council areas. Caerphilly has the most, with 702, followed by Blaenau Gwent (4) and Windsor and Maidenhead (3).

Collisions on the A4049 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stCaerphilly7021,04217146
2ndBlaenau Gwent4900
3rdWindsor and Maidenhead3301

A4049 crashes by town

Collisions on the A4049 were recorded in 5 towns and built-up areas, led by Aberbargoed (211) and Fleur-de-lis and Pengam (153).

Recent crashes on the A4049

These are the 25 most recent collisions on the A4049, from 24 January 2022 to 29 December 2025.

Severity