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CrashStats

B4006 accidents: crash map and statistics

Police recorded 2,366 collisions on the B4006 from 1979 to 2025, with 2,992 casualties. Of those crashes, 26 were fatal and 344 serious, and 26 people were killed.

In 2025 there were 52 collisions on the B4006, up 8% from 48 in 2024, with 59 casualties.

Collisions since 1979
2,366
493rd highest of 4,923 roads
Casualties
2,992
1.26 per collision
Fatal collisions
26
26 people killed
Serious collisions
344
374 seriously injured
Collisions in 2025
52
Up 8% on 2024
Casualties in 2025
59
Down 2% on 2024

Crash severity on the B4006

On the B4006, 1.1% of collisions were fatal and 15% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal261.1%
  • Serious34415%
  • Slight1,99684%

Where the B4006 ranks among 4,923 roads

Most collisions
493rd
Most casualties
538th
Most fatal collisions
771st
Most serious collisions
628th

B4006 accidents by year

Collisions on the B4006 peaked at 88 in 1985 and were down to 52 in 2025.

Collisions and casualties on the B4006, 1979 to 2025

  • Collisions
  • Collisions in 2025: 52
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
20255259
20244860
20234352
20224649
20214857
20202933
20193448
20183957
20172834
20164054
20154859
20144051
20134967
20124055
20114863
20102938
20093343
20084050
20075876
20064352
20055671
20045169
20037188
20026284
200178100
20007089
19994969
19985971
19976778
19965162
19957084
19946584
19934860
19926378
19915864
19906488
19896270
19886581
198775107
19866382
198588116
19847796
19832227
19822023
19812229
19803134
19792431

When crashes happen on the B4006

Friday has the most collisions on the B4006 (434), and 3pm to 6pm is the busiest time of day (590).

Collisions by day of the week

  • Monday352 (15%)
  • Tuesday388 (16%)
  • Wednesday361 (15%)
  • Thursday348 (15%)
  • Friday434 (18%)
  • Saturday284 (12%)
  • Sunday199 (8.4%)

Collisions by time of day

  • Midnight to 3am67 (2.8%)
  • 3am to 6am47 (2%)
  • 6am to 9am381 (16%)
  • 9am to noon253 (11%)
  • Noon to 3pm392 (17%)
  • 3pm to 6pm590 (25%)
  • 6pm to 9pm389 (16%)
  • 9pm to midnight247 (10%)

Collisions by month

  • January218 (9.2%)
  • February171 (7.2%)
  • March190 (8%)
  • April161 (6.8%)
  • May190 (8%)
  • June169 (7.1%)
  • July180 (7.6%)
  • August185 (7.8%)
  • September203 (8.6%)
  • October212 (9%)
  • November262 (11%)
  • December225 (9.5%)

Light conditions at the time

  • Daylight1,588 (67%)
  • Dark, street lights lit724 (31%)
  • Dark, lighting unknown20 (0.8%)
  • Dark, no street lighting17 (0.7%)
  • Dark, street lights unlit17 (0.7%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in B4006 crashes

On the B4006, 61% of collisions happened where the speed limit was 30 mph and 65% on a dry road surface.

Speed limit at the scene

  • 20 mph3 (0.1%)
  • 30 mph1,435 (61%)
  • 40 mph793 (34%)
  • 50 mph21 (0.9%)
  • 60 mph85 (3.6%)
  • 70 mph29 (1.2%)

Weather at the time

  • Fine, no high winds1,863 (79%)
  • Raining, no high winds311 (13%)
  • Raining with high winds53 (2.2%)
  • Fine with high winds31 (1.3%)
  • Other57 (2.4%)
  • Not recorded51 (2.2%)

Road surface

  • Dry1,534 (65%)
  • Wet or damp777 (33%)
  • Frost or ice40 (1.7%)
  • Snow12 (0.5%)
  • Oil or diesel2 (0.1%)
  • Flood over 3cm deep1 (under 0.1%)

Type of road

  • Single carriageway1,398 (59%)
  • Roundabout804 (34%)
  • Dual carriageway128 (5.4%)
  • One way street or slip road32 (1.4%)
  • Not recorded4 (0.2%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in B4006 crashes

Car occupants make up 53% of the people killed or injured on the B4006, followed by motorcyclists (19%).

Casualties by road user

  • Car occupant1,589 (53%)
  • Motorcyclist559 (19%)
  • Cyclist425 (14%)
  • Pedestrian291 (9.7%)
  • Van occupant53 (1.8%)
  • Bus or coach occupant38 (1.3%)
  • Other35 (1.2%)
  • Not recorded2 (0.1%)

Vehicles involved

  • Car3,123 (69%)
  • Motorcycle566 (12%)
  • Pedal cycle433 (9.5%)
  • Van or goods vehicle up to 3.5 tonnes241 (5.3%)
  • Goods vehicle over 3.5 tonnes64 (1.4%)
  • Bus or coach51 (1.1%)
  • Taxi or private hire car30 (0.7%)
  • Other36 (0.8%)

Casualties by age

  • 0 to 535 (1.2%)
  • 6 to 1091 (3%)
  • 11 to 15194 (6.5%)
  • 16 to 20600 (20%)
  • 21 to 25384 (13%)
  • 26 to 35547 (18%)
  • 36 to 45452 (15%)
  • 46 to 55321 (11%)
  • 56 to 65199 (6.7%)
  • 66 to 75100 (3.3%)
  • Over 7567 (2.2%)
  • Not recorded2 (0.1%)

Drivers, passengers and pedestrians

  • Driver or rider2,095 (70%)
  • Passenger606 (20%)
  • Pedestrian291 (9.7%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the B4006

Map of the 25 most recent crashes on the B4006

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

  • 25 crashes
  • Fatal
  • Serious
  • Slight

B4006 crashes by council area

Of the 2,366 collisions on the B4006, 2,364 were in Swindon.

Collisions on the B4006 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stSwindon2,3642,99026344

B4006 crashes by town

Collisions on the B4006 were recorded in 2 towns and built-up areas, led by Swindon, Swindon (1,204) and Stratton St Margaret (646).

Recent crashes on the B4006

These are the 25 most recent collisions on the B4006, from 19 June to 30 December 2025.

Severity