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CrashStats

SN16 road accidents: crash map and statistics

Police recorded 1,729 road traffic collisions in the SN16 postcode district, Wiltshire, from 1979 to 2025, and 2,515 people were killed or injured in them. Of those collisions, 38 were fatal and 403 were serious.

In 2025 police recorded 15 collisions, down from 18 in 2024.

Collisions since 1979
1,729
1,881st of 2,813 postcode districts, highest first
Casualties
2,515
1.45 per collision
Fatal collisions
38
41 people killed
Serious collisions
403
487 seriously injured
Collisions in 2025
15
18 in 2024
Casualties in 2025
22
Down 19% on 2024

Road collision statistics for SN16

Collisions by severity, 1979 to 2025

  • Fatal382.2%
  • Serious40323%
  • Slight1,28874%

What the data shows

  • SN16 had 196 collisions from 2016 to 2025, 22% fewer than the 252 from 2006 to 2015.
  • 26% of collisions in SN16 were fatal or serious, against 20% across Great Britain.
  • 250 children under 16 were killed or injured in SN16, 9.9% of the casualties whose age was recorded.
  • The road surface was wet, icy, snowy or flooded in 39% of collisions in SN16.

Where SN16 ranks among 2,813 postcode districts

Most collisions
1,881st
Most casualties
1,847th
Most fatal collisions
1,575th
Most serious collisions
1,748th

Collisions by day of the week

  • Monday263 (15%)
  • Tuesday236 (14%)
  • Wednesday267 (15%)
  • Thursday255 (15%)
  • Friday271 (16%)
  • Saturday247 (14%)
  • Sunday190 (11%)

Light conditions

  • Daylight1,271 (74%)
  • Dark, no street lighting346 (20%)
  • Dark, street lights lit98 (5.7%)
  • Dark, lighting unknown7 (0.4%)
  • Dark, street lights unlit7 (0.4%)

Type of road

  • Single carriageway1,642 (95%)
  • Roundabout45 (2.6%)
  • One way street or slip road26 (1.5%)
  • Dual carriageway14 (0.8%)
  • Not recorded2 (0.1%)

Speed limit at the scene

  • 20 mph21 (1.2%)
  • 30 mph386 (22%)
  • 40 mph104 (6%)
  • 50 mph35 (2%)
  • 60 mph1,123 (65%)
  • 70 mph60 (3.5%)

Weather at the time

  • Fine, no high winds1,333 (77%)
  • Raining, no high winds224 (13%)
  • Raining with high winds46 (2.7%)
  • Fog or mist39 (2.3%)
  • Fine with high winds38 (2.2%)
  • Snowing, no high winds15 (0.9%)
  • Snowing with high winds3 (0.2%)
  • Other6 (0.3%)
  • Not recorded25 (1.4%)

Who was hurt

  • Car occupant1,776 (71%)
  • Motorcyclist284 (11%)
  • Pedestrian158 (6.3%)
  • Cyclist119 (4.7%)
  • Van occupant103 (4.1%)
  • Goods vehicle occupant (over 3.5 tonnes)49 (1.9%)
  • Bus or coach occupant9 (0.4%)
  • Other vehicle occupant6 (0.2%)
  • Horse rider4 (0.2%)
  • Taxi or private hire car occupant4 (0.2%)
  • Other3 (0.1%)

Source: Department for Transport, STATS19 road safety data

SN16 road accidents by year

Collisions and casualties in SN16, 1979 to 2025

Collisions in SN16 peaked at 64 in 1986; 2025 had 15.

  • Collisions
  • Collisions in 2025: 15
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
20251522
20241827
20231320
20222531
20211930
20202021
20191721
20181317
20172835
20162839
20153846
20143249
20132633
20122334
20112131
20102336
20091414
20082026
20072134
20063448
20053243
20042939
20033747
20024767
20014456
20005184
19995381
19985075
19975586
19965073
19953962
19944456
19934582
19924662
19913957
19903869
19895790
19883449
19875369
19866497
19854572
19845081
19835578
19826392
19815783
19805276
19795275

Map of recent crashes in SN16

Map of the 24 most recent crashes in SN16

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

  • 24 crashes
  • Serious
  • Slight

Recent road crashes in SN16

The 24 most recent collisions in SN16 happened between 7 September 2024 and 24 December 2025.

Severity

Crashes by road in SN16

The A429 has the most collisions in SN16, 523 of 1,729 (30%), followed by the B4040 (463).

Collisions in SN16 on each road, 1979 to 2025
RankRoadCollisionsCasualtiesFatalSerious
1stA42952381319114
2ndB404046366111111
3rdB4014125178325
4thB4042118159026

Council area for SN16

SN16 is in Wiltshire, where police recorded 68,701 collisions from 1979 to 2025. SN16 accounts for 2.5% of them.

Town in SN16

Of the 1,729 collisions in SN16, 313 (18%) were in Malmesbury.