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CrashStats

B4528 accidents: crash map and statistics

Police recorded 115 collisions on the B4528 from 1998 to 2025, with 140 casualties. Of those crashes, 2 were fatal and 17 serious, and 2 people were killed.

In 2025 there were 9 collisions on the B4528, up 125% from 4 in 2024, with 11 casualties.

Collisions since 1998
115
3,897th highest of 4,923 roads
Casualties
140
1.22 per collision
Fatal collisions
2
2 people killed
Serious collisions
17
17 seriously injured
Collisions in 2025
9
Up 125% on 2024
Casualties in 2025
11
Up 175% on 2024

Crash severity on the B4528

On the B4528, 1.7% of collisions were fatal and 15% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1998 to 2025

  • Fatal21.7%
  • Serious1715%
  • Slight9683%

Where the B4528 ranks among 4,923 roads

Most collisions
3,897th
Most casualties
3,996th
Most fatal collisions
3,485th
Most serious collisions
4,187th

B4528 accidents by year

Collisions on the B4528 peaked at 10 in 2018 and were down to 9 in 2025.

Collisions and casualties on the B4528, 1998 to 2025

  • Collisions
  • Collisions in 2025
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
2025911
202444
202323
202257
202166
202059
201945
20181012
201746
201633
201579
201456
201333
201257
201155
201022
200912
200811
200766
200689
200523
200422
200333
200211
200122
200067
199913
199833

When crashes happen on the B4528

Monday has the most collisions on the B4528 (21), and 3pm to 6pm is the busiest time of day (41).

Collisions by day of the week

  • Monday21 (18%)
  • Tuesday21 (18%)
  • Wednesday18 (16%)
  • Thursday19 (17%)
  • Friday14 (12%)
  • Saturday11 (9.6%)
  • Sunday11 (9.6%)

Collisions by time of day

  • Midnight to 3am2 (1.7%)
  • 3am to 6am2 (1.7%)
  • 6am to 9am15 (13%)
  • 9am to noon14 (12%)
  • Noon to 3pm16 (14%)
  • 3pm to 6pm41 (36%)
  • 6pm to 9pm19 (17%)
  • 9pm to midnight6 (5.2%)

Collisions by month

  • January12 (10%)
  • February8 (7%)
  • March8 (7%)
  • April6 (5.2%)
  • May10 (8.7%)
  • June9 (7.8%)
  • July17 (15%)
  • August3 (2.6%)
  • September9 (7.8%)
  • October9 (7.8%)
  • November12 (10%)
  • December12 (10%)

Light conditions at the time

  • Daylight79 (69%)
  • Dark, street lights lit33 (29%)
  • Dark, no street lighting3 (2.6%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in B4528 crashes

On the B4528, 95% of collisions happened where the speed limit was 30 mph and 61% on a dry road surface.

Speed limit at the scene

  • 30 mph109 (95%)
  • 40 mph1 (0.9%)
  • 50 mph1 (0.9%)
  • 60 mph4 (3.5%)

Weather at the time

  • Fine, no high winds90 (78%)
  • Raining, no high winds21 (18%)
  • Fine with high winds1 (0.9%)
  • Raining with high winds1 (0.9%)
  • Not recorded2 (1.7%)

Road surface

  • Dry70 (61%)
  • Wet or damp44 (38%)
  • Oil or diesel1 (0.9%)

Type of road

  • Single carriageway95 (83%)
  • Roundabout20 (17%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in B4528 crashes

Car occupants make up 54% of the people killed or injured on the B4528, followed by cyclists (19%).

Casualties by road user

  • Car occupant76 (54%)
  • Cyclist26 (19%)
  • Pedestrian22 (16%)
  • Motorcyclist13 (9.3%)
  • Bus or coach occupant1 (0.7%)
  • Taxi or private hire car occupant1 (0.7%)
  • Not recorded1 (0.7%)

Vehicles involved

  • Car151 (75%)
  • Pedal cycle26 (13%)
  • Motorcycle14 (7%)
  • Van or goods vehicle up to 3.5 tonnes4 (2%)
  • Taxi or private hire car2 (1%)
  • Bus or coach1 (0.5%)
  • Goods vehicle over 3.5 tonnes1 (0.5%)
  • Other2 (1%)

Casualties by age

  • 0 to 52 (1.4%)
  • 6 to 103 (2.1%)
  • 11 to 1517 (12%)
  • 16 to 2024 (17%)
  • 21 to 2515 (11%)
  • 26 to 3518 (13%)
  • 36 to 4517 (12%)
  • 46 to 5516 (11%)
  • 56 to 6512 (8.6%)
  • 66 to 7511 (7.9%)
  • Over 755 (3.6%)

Drivers, passengers and pedestrians

  • Driver or rider96 (69%)
  • Passenger22 (16%)
  • Pedestrian22 (16%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the B4528

Map of the 25 most recent crashes on the B4528

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

  • 25 crashes
  • Serious
  • Slight

B4528 crashes by council area

All 115 collisions on the B4528 were in Wiltshire.

Collisions on the B4528 in each area, 1998 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stWiltshire115140217

B4528 crashes by town

Of the 115 collisions on the B4528, 113 were in the built-up area of Chippenham, Wiltshire.

Recent crashes on the B4528

These are the 25 most recent collisions on the B4528, from 12 July 2021 to 17 December 2025.

Severity