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CrashStats

B4534 accidents: crash map and statistics

Police recorded 713 collisions on the B4534 from 1979 to 2025, with 978 casualties. Of those crashes, 6 were fatal and 102 serious, and 6 people were killed.

In 2025 there were 9 collisions on the B4534, up 13% from 8 in 2024, with 10 casualties.

Collisions since 1979
713
1,479th highest of 4,923 roads
Casualties
978
1.37 per collision
Fatal collisions
6
6 people killed
Serious collisions
102
109 seriously injured
Collisions in 2025
9
Up 13% on 2024
Casualties in 2025
10
Up 11% on 2024

Crash severity on the B4534

On the B4534, 0.8% of collisions were fatal and 14% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal60.8%
  • Serious10214%
  • Slight60585%

Where the B4534 ranks among 4,923 roads

Most collisions
1,479th
Most casualties
1,460th
Most fatal collisions
2,299th
Most serious collisions
1,881st

B4534 accidents by year

Collisions on the B4534 peaked at 36 in 2016 and were down to 9 in 2025.

Collisions and casualties on the B4534, 1979 to 2025

  • Collisions
  • Collisions in 2025: 9
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
2025910
202489
2023916
202267
202178
20201013
20191520
20181315
20171727
20163659
20152746
20142542
20131823
20123352
20113553
20102033
20092841
20082432
20072128
20062735
20052028
20041114
20031827
20021722
20012836
20003040
19992222
19982531
19971518
19962226
19952023
19941422
19931212
199268
19911115
19901015
1989910
198889
198788
198666
198557
198478
198300
198200
198100
198000
197912

When crashes happen on the B4534

Friday has the most collisions on the B4534 (134), and 3pm to 6pm is the busiest time of day (157).

Collisions by day of the week

  • Monday98 (14%)
  • Tuesday101 (14%)
  • Wednesday96 (13%)
  • Thursday96 (13%)
  • Friday134 (19%)
  • Saturday101 (14%)
  • Sunday87 (12%)

Collisions by time of day

  • Midnight to 3am18 (2.5%)
  • 3am to 6am6 (0.8%)
  • 6am to 9am119 (17%)
  • 9am to noon65 (9.1%)
  • Noon to 3pm114 (16%)
  • 3pm to 6pm157 (22%)
  • 6pm to 9pm152 (21%)
  • 9pm to midnight82 (12%)

Collisions by month

  • January86 (12%)
  • February58 (8.1%)
  • March47 (6.6%)
  • April54 (7.6%)
  • May49 (6.9%)
  • June43 (6%)
  • July63 (8.8%)
  • August65 (9.1%)
  • September59 (8.3%)
  • October57 (8%)
  • November71 (10%)
  • December61 (8.6%)

Light conditions at the time

  • Daylight475 (67%)
  • Dark, street lights lit213 (30%)
  • Dark, no street lighting15 (2.1%)
  • Dark, street lights unlit6 (0.8%)
  • Dark, lighting unknown4 (0.6%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in B4534 crashes

On the B4534, 58% of collisions happened where the speed limit was 40 mph and 62% on a dry road surface.

Speed limit at the scene

  • 20 mph2 (0.3%)
  • 30 mph171 (24%)
  • 40 mph416 (58%)
  • 50 mph3 (0.4%)
  • 60 mph119 (17%)
  • 70 mph2 (0.3%)

Weather at the time

  • Fine, no high winds559 (78%)
  • Raining, no high winds98 (14%)
  • Raining with high winds15 (2.1%)
  • Fine with high winds9 (1.3%)
  • Other17 (2.4%)
  • Not recorded15 (2.1%)

Road surface

  • Dry439 (62%)
  • Wet or damp263 (37%)
  • Frost or ice9 (1.3%)
  • Flood over 3cm deep1 (0.1%)
  • Not recorded1 (0.1%)

Type of road

  • Single carriageway288 (40%)
  • Roundabout236 (33%)
  • Dual carriageway184 (26%)
  • One way street or slip road5 (0.7%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in B4534 crashes

Car occupants make up 67% of the people killed or injured on the B4534, followed by motorcyclists (13%).

Casualties by road user

  • Car occupant659 (67%)
  • Motorcyclist126 (13%)
  • Cyclist80 (8.2%)
  • Pedestrian58 (5.9%)
  • Van occupant33 (3.4%)
  • Taxi or private hire car occupant10 (1%)
  • Bus or coach occupant7 (0.7%)
  • Other5 (0.5%)

Vehicles involved

  • Car1,068 (76%)
  • Motorcycle125 (8.9%)
  • Pedal cycle84 (6%)
  • Van or goods vehicle up to 3.5 tonnes75 (5.4%)
  • Goods vehicle over 3.5 tonnes16 (1.1%)
  • Bus or coach13 (0.9%)
  • Taxi or private hire car10 (0.7%)
  • Other8 (0.6%)

Casualties by age

  • 0 to 517 (1.7%)
  • 6 to 1031 (3.2%)
  • 11 to 1552 (5.3%)
  • 16 to 20184 (19%)
  • 21 to 25153 (16%)
  • 26 to 35219 (22%)
  • 36 to 45143 (15%)
  • 46 to 5586 (8.8%)
  • 56 to 6550 (5.1%)
  • 66 to 7529 (3%)
  • Over 7514 (1.4%)

Drivers, passengers and pedestrians

  • Driver or rider698 (71%)
  • Passenger222 (23%)
  • Pedestrian58 (5.9%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the B4534

Map of the 25 most recent crashes on the B4534

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

  • 25 crashes
  • Serious
  • Slight

B4534 crashes by council area

Collisions on the B4534 were recorded in 2 council areas. Swindon has the most, with 695, followed by Wiltshire (16).

Collisions on the B4534 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stSwindon6959496100
2ndWiltshire162602

B4534 crashes by town

Collisions on the B4534 were recorded in 2 towns and built-up areas, led by Swindon, Swindon (470) and Broad Blunsdon (18).

Recent crashes on the B4534

These are the 25 most recent collisions on the B4534, from 5 February 2023 to 21 November 2025.

Severity