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CrashStats

A166 accidents: crash map and statistics

Police recorded 1,588 collisions on the A166 from 1979 to 2025, with 2,648 casualties. Of those crashes, 79 were fatal and 404 serious, and 92 people were killed.

In 2025 there were 14 collisions on the A166, up 40% from 10 in 2024, with 18 casualties.

Collisions since 1979
1,588
712th highest of 4,923 roads
Casualties
2,648
1.67 per collision
Fatal collisions
79
92 people killed
Serious collisions
404
588 seriously injured
Collisions in 2025
14
Up 40% on 2024
Casualties in 2025
18
Up 29% on 2024

Crash severity on the A166

On the A166, 5% of collisions were fatal and 25% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal795%
  • Serious40425%
  • Slight1,10570%

Where the A166 ranks among 4,923 roads

Most collisions
712th
Most casualties
594th
Most fatal collisions
270th
Most serious collisions
533rd

A166 accidents by year

Collisions on the A166 peaked at 62 in 1996 and were down to 14 in 2025.

Collisions and casualties on the A166, 1979 to 2025

  • Collisions
  • Collisions in 2025: 14
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
20251418
20241014
20231938
20221213
20211319
20201828
20191526
20181727
20171525
20161838
20151226
20142342
20132643
20122237
20112443
20102233
20092339
20083350
20071928
20062853
20052444
20042543
20034064
20023348
20014469
20003959
19994068
19983452
19974571
199662103
19954887
19943283
19934564
19925886
19914374
19905691
198961101
19884677
19874380
19864274
19853964
19845191
19834281
19825095
19816087
19806094
19794358

When crashes happen on the A166

Sunday has the most collisions on the A166 (290), and 3pm to 6pm is the busiest time of day (421).

Collisions by day of the week

  • Monday192 (12%)
  • Tuesday181 (11%)
  • Wednesday200 (13%)
  • Thursday196 (12%)
  • Friday253 (16%)
  • Saturday276 (17%)
  • Sunday290 (18%)

Collisions by time of day

  • Midnight to 3am62 (3.9%)
  • 3am to 6am31 (2%)
  • 6am to 9am191 (12%)
  • 9am to noon280 (18%)
  • Noon to 3pm292 (18%)
  • 3pm to 6pm421 (27%)
  • 6pm to 9pm196 (12%)
  • 9pm to midnight115 (7.2%)

Collisions by month

  • January114 (7.2%)
  • February114 (7.2%)
  • March127 (8%)
  • April149 (9.4%)
  • May127 (8%)
  • June128 (8.1%)
  • July138 (8.7%)
  • August189 (12%)
  • September134 (8.4%)
  • October134 (8.4%)
  • November127 (8%)
  • December107 (6.7%)

Light conditions at the time

  • Daylight1,201 (76%)
  • Dark, no street lighting275 (17%)
  • Dark, street lights lit94 (5.9%)
  • Dark, lighting unknown15 (0.9%)
  • Dark, street lights unlit2 (0.1%)
  • Not recorded1 (0.1%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in A166 crashes

On the A166, 79% of collisions happened where the speed limit was 60 mph and 58% on a dry road surface.

Speed limit at the scene

  • 20 mph2 (0.1%)
  • 30 mph238 (15%)
  • 40 mph73 (4.6%)
  • 50 mph5 (0.3%)
  • 60 mph1,249 (79%)
  • 70 mph20 (1.3%)
  • Not recorded1 (0.1%)

Weather at the time

  • Fine, no high winds1,246 (78%)
  • Raining, no high winds198 (12%)
  • Fog or mist51 (3.2%)
  • Fine with high winds26 (1.6%)
  • Other62 (3.9%)
  • Not recorded5 (0.3%)

Road surface

  • Dry925 (58%)
  • Wet or damp562 (35%)
  • Frost or ice73 (4.6%)
  • Snow22 (1.4%)
  • Flood over 3cm deep4 (0.3%)
  • Not recorded2 (0.1%)

Type of road

  • Single carriageway1,525 (96%)
  • Roundabout43 (2.7%)
  • Dual carriageway15 (0.9%)
  • One way street or slip road2 (0.1%)
  • Not recorded3 (0.2%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in A166 crashes

Car occupants make up 72% of the people killed or injured on the A166, followed by motorcyclists (13%).

Casualties by road user

  • Car occupant1,900 (72%)
  • Motorcyclist348 (13%)
  • Van occupant114 (4.3%)
  • Cyclist81 (3.1%)
  • Pedestrian79 (3%)
  • Goods vehicle occupant (over 3.5 tonnes)57 (2.2%)
  • Minibus occupant25 (0.9%)
  • Other44 (1.7%)

Vehicles involved

  • Car2,157 (72%)
  • Motorcycle346 (12%)
  • Van or goods vehicle up to 3.5 tonnes164 (5.5%)
  • Goods vehicle over 3.5 tonnes142 (4.8%)
  • Pedal cycle87 (2.9%)
  • Bus or coach28 (0.9%)
  • Other vehicle25 (0.8%)
  • Other35 (1.2%)

Casualties by age

  • 0 to 550 (1.9%)
  • 6 to 1070 (2.6%)
  • 11 to 1591 (3.4%)
  • 16 to 20498 (19%)
  • 21 to 25355 (13%)
  • 26 to 35444 (17%)
  • 36 to 45387 (15%)
  • 46 to 55261 (9.9%)
  • 56 to 65245 (9.3%)
  • 66 to 75158 (6%)
  • Over 7574 (2.8%)
  • Not recorded15 (0.6%)

Drivers, passengers and pedestrians

  • Driver or rider1,564 (59%)
  • Passenger1,005 (38%)
  • Pedestrian79 (3%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the A166

Map of the 25 most recent crashes on the A166

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

  • 25 crashes
  • Fatal
  • Serious
  • Slight

A166 crashes by council area

Collisions on the A166 were recorded in 3 council areas. East Riding of Yorkshire has the most, with 1,216, followed by North Yorkshire (199) and York (171).

Collisions on the A166 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stEast Riding of Yorkshire1,2162,03161297
2ndNorth Yorkshire1993381071
3rdYork171277836

A166 crashes by town

Collisions on the A166 were recorded in 2 towns and built-up areas, led by Driffield (74) and Stamford Bridge (46).

Recent crashes on the A166

These are the 25 most recent collisions on the A166, from 26 December 2023 to 26 December 2025.

Severity