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CrashStats

B4388 accidents: crash map and statistics

Police recorded 103 collisions on the B4388 from 1979 to 2025, with 157 casualties. Of those crashes, 1 was fatal and 32 serious, and 1 person was killed.

In 2025 there were 3 collisions on the B4388, down 40% from 5 in 2024, with 4 casualties.

Collisions since 1979
103
4,007th highest of 4,923 roads
Casualties
157
1.52 per collision
Fatal collisions
1
1 person killed
Serious collisions
32
38 seriously injured
Collisions in 2025
3
Down 40% on 2024
Casualties in 2025
4
Down 64% on 2024

Crash severity on the B4388

On the B4388, 1% of collisions were fatal and 31% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal11%
  • Serious3231%
  • Slight7068%

Where the B4388 ranks among 4,923 roads

Most collisions
4,007th
Most casualties
3,875th
Most fatal collisions
3,933rd
Most serious collisions
3,541st

B4388 accidents by year

Collisions on the B4388 peaked at 6 in 1991 and were down to 3 in 2025.

Collisions and casualties on the B4388, 1979 to 2025

  • Collisions
  • Collisions in 2025: 3
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
202534
2024511
202322
202234
202159
202011
201944
201822
201745
201635
201534
201400
201312
201248
201134
201022
200933
200817
200724
200644
200559
200411
200323
200211
200133
200014
199934
199800
199711
199611
199511
199414
199312
199234
199166
199035
198936
198812
198734
198600
198500
198400
198323
198233
198111
198000
197924

When crashes happen on the B4388

Tuesday has the most collisions on the B4388 (20), and 3pm to 6pm is the busiest time of day (33).

Collisions by day of the week

  • Monday10 (9.7%)
  • Tuesday20 (19%)
  • Wednesday17 (17%)
  • Thursday13 (13%)
  • Friday11 (11%)
  • Saturday20 (19%)
  • Sunday12 (12%)

Collisions by time of day

  • Midnight to 3am3 (2.9%)
  • 3am to 6am3 (2.9%)
  • 6am to 9am8 (7.8%)
  • 9am to noon13 (13%)
  • Noon to 3pm23 (22%)
  • 3pm to 6pm33 (32%)
  • 6pm to 9pm13 (13%)
  • 9pm to midnight7 (6.8%)

Collisions by month

  • January9 (8.7%)
  • February8 (7.8%)
  • March4 (3.9%)
  • April11 (11%)
  • May8 (7.8%)
  • June5 (4.9%)
  • July6 (5.8%)
  • August10 (9.7%)
  • September8 (7.8%)
  • October11 (11%)
  • November6 (5.8%)
  • December17 (17%)

Light conditions at the time

  • Daylight77 (75%)
  • Dark, no street lighting20 (19%)
  • Dark, street lights lit3 (2.9%)
  • Dark, lighting unknown1 (1%)
  • Not recorded2 (1.9%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in B4388 crashes

On the B4388, 81% of collisions happened where the speed limit was 60 mph and 59% on a dry road surface.

Speed limit at the scene

  • 20 mph1 (1%)
  • 30 mph8 (7.8%)
  • 40 mph11 (11%)
  • 60 mph83 (81%)

Weather at the time

  • Fine, no high winds84 (82%)
  • Raining, no high winds13 (13%)
  • Fine with high winds1 (1%)
  • Fog or mist1 (1%)
  • Other2 (1.9%)
  • Not recorded2 (1.9%)

Road surface

  • Dry61 (59%)
  • Wet or damp38 (37%)
  • Frost or ice2 (1.9%)
  • Not recorded2 (1.9%)

Type of road

  • Single carriageway101 (98%)
  • Dual carriageway1 (1%)
  • Roundabout1 (1%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in B4388 crashes

Car occupants make up 81% of the people killed or injured on the B4388, followed by motorcyclists (7%).

Casualties by road user

  • Car occupant127 (81%)
  • Motorcyclist11 (7%)
  • Pedestrian8 (5.1%)
  • Van occupant6 (3.8%)
  • Agricultural vehicle occupant2 (1.3%)
  • Cyclist1 (0.6%)
  • Minibus occupant1 (0.6%)
  • Other vehicle occupant1 (0.6%)

Vehicles involved

  • Car149 (77%)
  • Van or goods vehicle up to 3.5 tonnes18 (9.3%)
  • Motorcycle10 (5.2%)
  • Goods vehicle over 3.5 tonnes8 (4.1%)
  • Agricultural vehicle3 (1.6%)
  • Other vehicle2 (1%)
  • Minibus1 (0.5%)
  • Other2 (1%)

Casualties by age

  • 0 to 57 (4.5%)
  • 6 to 105 (3.2%)
  • 11 to 151 (0.6%)
  • 16 to 2030 (19%)
  • 21 to 2517 (11%)
  • 26 to 3523 (15%)
  • 36 to 4521 (13%)
  • 46 to 5514 (8.9%)
  • 56 to 6518 (11%)
  • 66 to 7512 (7.6%)
  • Over 758 (5.1%)
  • Not recorded1 (0.6%)

Drivers, passengers and pedestrians

  • Driver or rider101 (64%)
  • Passenger48 (31%)
  • Pedestrian8 (5.1%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the B4388

Map of the 25 most recent crashes on the B4388

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

  • 25 crashes
  • Serious
  • Slight

B4388 crashes by council area

Of the 103 collisions on the B4388, 102 were in Powys.

Collisions on the B4388 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stPowys102155132

Recent crashes on the B4388

These are the 25 most recent collisions on the B4388, from 12 March 2018 to 23 December 2025.

Severity