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CrashStats

A646 accidents: crash map and statistics

Police recorded 3,742 collisions on the A646 from 1979 to 2025, with 5,251 casualties. Of those crashes, 99 were fatal and 744 serious, and 111 people were killed.

In 2025 there were 32 collisions on the A646, up 7% from 30 in 2024, with 45 casualties.

Collisions since 1979
3,742
300th highest of 4,923 roads
Casualties
5,251
1.40 per collision
Fatal collisions
99
111 people killed
Serious collisions
744
865 seriously injured
Collisions in 2025
32
Up 7% on 2024
Casualties in 2025
45
Up 5% on 2024

Crash severity on the A646

On the A646, 2.6% of collisions were fatal and 20% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal992.6%
  • Serious74420%
  • Slight2,89977%

Where the A646 ranks among 4,923 roads

Most collisions
300th
Most casualties
285th
Most fatal collisions
211th
Most serious collisions
264th

A646 accidents by year

Collisions on the A646 peaked at 139 in 1997 and were down to 32 in 2025.

Collisions and casualties on the A646, 1979 to 2025

  • Collisions
  • Collisions in 2025: 32
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
20253245
20243043
20233552
20223956
20213541
20201620
20192736
20183138
20173246
20164661
20155878
20144049
20134461
20124048
20114065
20105673
20095895
200869104
200767111
200671122
200584125
200496135
200399158
200296139
200188135
2000121192
1999121165
1998110162
1997139211
1996100132
1995108149
1994101136
1993128187
1992116160
1991103136
1990123156
1989127163
1988108147
1987101140
198689120
198588123
1984106143
1983105149
1982109134
1981112144
198094131
1979104135

When crashes happen on the A646

Friday has the most collisions on the A646 (637), and 3pm to 6pm is the busiest time of day (938).

Collisions by day of the week

  • Monday502 (13%)
  • Tuesday467 (12%)
  • Wednesday527 (14%)
  • Thursday555 (15%)
  • Friday637 (17%)
  • Saturday566 (15%)
  • Sunday488 (13%)

Collisions by time of day

  • Midnight to 3am172 (4.6%)
  • 3am to 6am61 (1.6%)
  • 6am to 9am440 (12%)
  • 9am to noon511 (14%)
  • Noon to 3pm652 (17%)
  • 3pm to 6pm938 (25%)
  • 6pm to 9pm620 (17%)
  • 9pm to midnight348 (9.3%)

Collisions by month

  • January314 (8.4%)
  • February272 (7.3%)
  • March309 (8.3%)
  • April309 (8.3%)
  • May306 (8.2%)
  • June296 (7.9%)
  • July299 (8%)
  • August321 (8.6%)
  • September328 (8.8%)
  • October343 (9.2%)
  • November340 (9.1%)
  • December305 (8.2%)

Light conditions at the time

  • Daylight2,664 (71%)
  • Dark, street lights lit990 (26%)
  • Dark, lighting unknown51 (1.4%)
  • Dark, no street lighting27 (0.7%)
  • Dark, street lights unlit10 (0.3%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in A646 crashes

On the A646, 69% of collisions happened where the speed limit was 30 mph and 57% on a dry road surface.

Speed limit at the scene

  • 20 mph45 (1.2%)
  • 30 mph2,567 (69%)
  • 40 mph640 (17%)
  • 50 mph94 (2.5%)
  • 60 mph390 (10%)
  • 70 mph6 (0.2%)

Weather at the time

  • Fine, no high winds2,938 (79%)
  • Raining, no high winds569 (15%)
  • Raining with high winds80 (2.1%)
  • Snowing, no high winds42 (1.1%)
  • Other95 (2.5%)
  • Not recorded18 (0.5%)

Road surface

  • Dry2,121 (57%)
  • Wet or damp1,513 (40%)
  • Frost or ice58 (1.5%)
  • Snow41 (1.1%)
  • Other8 (0.2%)
  • Not recorded1 (under 0.1%)

Type of road

  • Single carriageway3,454 (92%)
  • Dual carriageway211 (5.6%)
  • Roundabout63 (1.7%)
  • One way street or slip road7 (0.2%)
  • Not recorded7 (0.2%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in A646 crashes

Car occupants make up 62% of the people killed or injured on the A646, followed by pedestrians (14%).

Casualties by road user

  • Car occupant3,272 (62%)
  • Pedestrian748 (14%)
  • Motorcyclist564 (11%)
  • Cyclist278 (5.3%)
  • Van occupant153 (2.9%)
  • Bus or coach occupant134 (2.6%)
  • Taxi or private hire car occupant39 (0.7%)
  • Other63 (1.2%)

Vehicles involved

  • Car5,038 (76%)
  • Motorcycle556 (8.3%)
  • Van or goods vehicle up to 3.5 tonnes345 (5.2%)
  • Pedal cycle309 (4.6%)
  • Bus or coach163 (2.4%)
  • Goods vehicle over 3.5 tonnes139 (2.1%)
  • Taxi or private hire car47 (0.7%)
  • Other65 (1%)

Casualties by age

  • 0 to 5108 (2.1%)
  • 6 to 10204 (3.9%)
  • 11 to 15341 (6.5%)
  • 16 to 20884 (17%)
  • 21 to 25724 (14%)
  • 26 to 35961 (18%)
  • 36 to 45713 (14%)
  • 46 to 55511 (9.7%)
  • 56 to 65344 (6.6%)
  • 66 to 75254 (4.8%)
  • Over 75207 (3.9%)

Drivers, passengers and pedestrians

  • Driver or rider3,005 (57%)
  • Passenger1,498 (29%)
  • Pedestrian748 (14%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the A646

Map of the 25 most recent crashes on the A646

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

  • 25 crashes
  • Fatal
  • Serious
  • Slight

A646 crashes by council area

Collisions on the A646 were recorded in 4 council areas. Calderdale has the most, with 2,941, followed by Burnley (782) and Kirklees (9).

Collisions on the A646 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stCalderdale2,9414,05776575
2ndBurnley7821,17323166
3rdKirklees9901
4thRochdale3301

A646 crashes by town

Collisions on the A646 were recorded in 8 towns and built-up areas, led by Todmorden (816) and Halifax (766).

Recent crashes on the A646

These are the 25 most recent collisions on the A646, from 25 March to 27 November 2025.

Severity