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CrashStats

A346 accidents: crash map and statistics

Police recorded 911 collisions on the A346 from 1979 to 2025, with 1,505 casualties. Of those crashes, 26 were fatal and 164 serious, and 29 people were killed.

In 2025 there were 17 collisions on the A346, level with 2024, with 30 casualties.

Collisions since 1979
911
1,188th highest of 4,923 roads
Casualties
1,505
1.65 per collision
Fatal collisions
26
29 people killed
Serious collisions
164
225 seriously injured
Collisions in 2025
17
Level with 2024
Casualties in 2025
30
Up 25% on 2024

Crash severity on the A346

On the A346, 2.9% of collisions were fatal and 18% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal262.9%
  • Serious16418%
  • Slight72179%

Where the A346 ranks among 4,923 roads

Most collisions
1,188th
Most casualties
989th
Most fatal collisions
771st
Most serious collisions
1,270th

A346 accidents by year

Collisions on the A346 peaked at 34 in 2000 and were down to 17 in 2025.

Collisions and casualties on the A346, 1979 to 2025

  • Collisions
  • Collisions in 2025
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
20251730
20241724
20232551
20222235
20212028
2020814
20191322
2018814
20172234
20161526
20152026
20142640
20131625
20122333
20112334
20101723
20092234
20081220
20071938
20062551
20052544
20042454
20033351
20022437
20013259
20003463
19992866
19982635
19973455
19962445
19953259
19941927
19931521
19921010
19911013
19901730
19892038
19881229
1987810
19861317
19851216
19841116
19831516
19821725
19811524
19801620
19791523

When crashes happen on the A346

Monday has the most collisions on the A346 (144), and 3pm to 6pm is the busiest time of day (201).

Collisions by day of the week

  • Monday144 (16%)
  • Tuesday137 (15%)
  • Wednesday118 (13%)
  • Thursday142 (16%)
  • Friday132 (14%)
  • Saturday123 (14%)
  • Sunday115 (13%)

Collisions by time of day

  • Midnight to 3am33 (3.6%)
  • 3am to 6am24 (2.6%)
  • 6am to 9am152 (17%)
  • 9am to noon159 (17%)
  • Noon to 3pm166 (18%)
  • 3pm to 6pm201 (22%)
  • 6pm to 9pm111 (12%)
  • 9pm to midnight65 (7.1%)

Collisions by month

  • January59 (6.5%)
  • February64 (7%)
  • March77 (8.5%)
  • April69 (7.6%)
  • May76 (8.3%)
  • June81 (8.9%)
  • July90 (9.9%)
  • August72 (7.9%)
  • September77 (8.5%)
  • October83 (9.1%)
  • November73 (8%)
  • December90 (9.9%)

Light conditions at the time

  • Daylight673 (74%)
  • Dark, no street lighting176 (19%)
  • Dark, street lights lit51 (5.6%)
  • Dark, lighting unknown8 (0.9%)
  • Dark, street lights unlit3 (0.3%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in A346 crashes

On the A346, 62% of collisions happened where the speed limit was 60 mph and 58% on a dry road surface.

Speed limit at the scene

  • 20 mph1 (0.1%)
  • 30 mph144 (16%)
  • 40 mph56 (6.1%)
  • 50 mph122 (13%)
  • 60 mph565 (62%)
  • 70 mph23 (2.5%)

Weather at the time

  • Fine, no high winds687 (75%)
  • Raining, no high winds130 (14%)
  • Fog or mist26 (2.9%)
  • Fine with high winds17 (1.9%)
  • Other37 (4.1%)
  • Not recorded14 (1.5%)

Road surface

  • Dry529 (58%)
  • Wet or damp337 (37%)
  • Frost or ice27 (3%)
  • Snow13 (1.4%)
  • Flood over 3cm deep4 (0.4%)
  • Oil or diesel1 (0.1%)

Type of road

  • Single carriageway835 (92%)
  • Roundabout56 (6.1%)
  • Dual carriageway18 (2%)
  • One way street or slip road2 (0.2%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in A346 crashes

Car occupants make up 78% of the people killed or injured on the A346, followed by motorcyclists (7.5%).

Casualties by road user

  • Car occupant1,178 (78%)
  • Motorcyclist113 (7.5%)
  • Van occupant105 (7%)
  • Pedestrian47 (3.1%)
  • Goods vehicle occupant (over 3.5 tonnes)35 (2.3%)
  • Cyclist16 (1.1%)
  • Bus or coach occupant4 (0.3%)
  • Other7 (0.5%)

Vehicles involved

  • Car1,479 (76%)
  • Van or goods vehicle up to 3.5 tonnes170 (8.7%)
  • Goods vehicle over 3.5 tonnes138 (7.1%)
  • Motorcycle112 (5.7%)
  • Pedal cycle15 (0.8%)
  • Bus or coach11 (0.6%)
  • Other vehicle11 (0.6%)
  • Other15 (0.8%)

Casualties by age

  • 0 to 529 (1.9%)
  • 6 to 1036 (2.4%)
  • 11 to 1535 (2.3%)
  • 16 to 20191 (13%)
  • 21 to 25200 (13%)
  • 26 to 35283 (19%)
  • 36 to 45230 (15%)
  • 46 to 55214 (14%)
  • 56 to 65137 (9.1%)
  • 66 to 7587 (5.8%)
  • Over 7562 (4.1%)
  • Not recorded1 (0.1%)

Drivers, passengers and pedestrians

  • Driver or rider981 (65%)
  • Passenger477 (32%)
  • Pedestrian47 (3.1%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the A346

Map of the 25 most recent crashes on the A346

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

  • 25 crashes
  • Serious
  • Slight

A346 crashes by council area

Collisions on the A346 were recorded in 2 council areas. Wiltshire has the most, with 686, followed by Swindon (222).

Collisions on the A346 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stWiltshire6861,13823132
2ndSwindon222362330

A346 crashes by town

Collisions on the A346 were recorded in 3 towns and built-up areas, led by Marlborough (83) and Chiseldon (67).

Recent crashes on the A346

These are the 25 most recent collisions on the A346, from 28 March 2024 to 27 December 2025.

Severity