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CrashStats

A637 accidents: crash map and statistics

Police recorded 884 collisions on the A637 from 1979 to 2025, with 1,323 casualties. Of those crashes, 35 were fatal and 163 serious, and 38 people were killed.

In 2025 there were 12 collisions on the A637, up 100% from 6 in 2024, with 21 casualties.

Collisions since 1979
884
1,215th highest of 4,923 roads
Casualties
1,323
1.50 per collision
Fatal collisions
35
38 people killed
Serious collisions
163
227 seriously injured
Collisions in 2025
12
Up 100% on 2024
Casualties in 2025
21
Up 133% on 2024

Crash severity on the A637

On the A637, 4% of collisions were fatal and 18% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal354%
  • Serious16318%
  • Slight68678%

Where the A637 ranks among 4,923 roads

Most collisions
1,215th
Most casualties
1,116th
Most fatal collisions
590th
Most serious collisions
1,278th

A637 accidents by year

Collisions on the A637 peaked at 37 in 2003 and were down to 12 in 2025.

Collisions and casualties on the A637, 1979 to 2025

  • Collisions
  • Collisions in 2025
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
20251221
202469
2023913
2022714
202135
2020916
201968
20181011
20171730
2016911
20151526
20142232
20131928
20122333
20111417
20101321
200989
20081112
20071927
20062028
20051624
20042031
20033753
20023044
20012535
20003045
19993145
19982835
19972636
19963057
19953143
19941932
19931322
19922230
19912040
19902232
19892838
19882233
19871420
19861214
19852237
19842125
19831628
19822029
19812435
19802238
19793151

When crashes happen on the A637

Tuesday has the most collisions on the A637 (143), and 3pm to 6pm is the busiest time of day (200).

Collisions by day of the week

  • Monday135 (15%)
  • Tuesday143 (16%)
  • Wednesday111 (13%)
  • Thursday131 (15%)
  • Friday142 (16%)
  • Saturday112 (13%)
  • Sunday110 (12%)

Collisions by time of day

  • Midnight to 3am35 (4%)
  • 3am to 6am21 (2.4%)
  • 6am to 9am122 (14%)
  • 9am to noon132 (15%)
  • Noon to 3pm135 (15%)
  • 3pm to 6pm200 (23%)
  • 6pm to 9pm134 (15%)
  • 9pm to midnight105 (12%)

Collisions by month

  • January74 (8.4%)
  • February67 (7.6%)
  • March55 (6.2%)
  • April65 (7.4%)
  • May84 (9.5%)
  • June65 (7.4%)
  • July75 (8.5%)
  • August76 (8.6%)
  • September89 (10%)
  • October78 (8.8%)
  • November81 (9.2%)
  • December75 (8.5%)

Light conditions at the time

  • Daylight611 (69%)
  • Dark, street lights lit176 (20%)
  • Dark, no street lighting74 (8.4%)
  • Dark, lighting unknown16 (1.8%)
  • Dark, street lights unlit7 (0.8%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in A637 crashes

On the A637, 38% of collisions happened where the speed limit was 30 mph and 56% on a dry road surface.

Speed limit at the scene

  • 20 mph3 (0.3%)
  • 30 mph339 (38%)
  • 40 mph168 (19%)
  • 50 mph30 (3.4%)
  • 60 mph316 (36%)
  • 70 mph28 (3.2%)

Weather at the time

  • Fine, no high winds665 (75%)
  • Raining, no high winds135 (15%)
  • Fine with high winds18 (2%)
  • Raining with high winds12 (1.4%)
  • Other44 (5%)
  • Not recorded10 (1.1%)

Road surface

  • Dry493 (56%)
  • Wet or damp354 (40%)
  • Frost or ice22 (2.5%)
  • Snow13 (1.5%)
  • Flood over 3cm deep2 (0.2%)

Type of road

  • Single carriageway758 (86%)
  • Roundabout87 (9.8%)
  • Dual carriageway36 (4.1%)
  • Not recorded3 (0.3%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in A637 crashes

Car occupants make up 75% of the people killed or injured on the A637, followed by motorcyclists (10%).

Casualties by road user

  • Car occupant997 (75%)
  • Motorcyclist137 (10%)
  • Pedestrian66 (5%)
  • Van occupant36 (2.7%)
  • Cyclist35 (2.6%)
  • Goods vehicle occupant (over 3.5 tonnes)21 (1.6%)
  • Bus or coach occupant17 (1.3%)
  • Other14 (1.1%)

Vehicles involved

  • Car1,254 (78%)
  • Motorcycle130 (8.1%)
  • Van or goods vehicle up to 3.5 tonnes74 (4.6%)
  • Goods vehicle over 3.5 tonnes71 (4.4%)
  • Pedal cycle35 (2.2%)
  • Bus or coach20 (1.2%)
  • Other vehicle14 (0.9%)
  • Other12 (0.7%)

Casualties by age

  • 0 to 514 (1.1%)
  • 6 to 1030 (2.3%)
  • 11 to 1542 (3.2%)
  • 16 to 20244 (18%)
  • 21 to 25206 (16%)
  • 26 to 35283 (21%)
  • 36 to 45191 (14%)
  • 46 to 55129 (9.8%)
  • 56 to 6593 (7%)
  • 66 to 7547 (3.6%)
  • Over 7540 (3%)
  • Not recorded4 (0.3%)

Drivers, passengers and pedestrians

  • Driver or rider863 (65%)
  • Passenger394 (30%)
  • Pedestrian66 (5%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the A637

Map of the 25 most recent crashes on the A637

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

  • 25 crashes
  • Fatal
  • Serious
  • Slight

A637 crashes by council area

Collisions on the A637 were recorded in 4 council areas. Barnsley has the most, with 394, followed by Wakefield (277) and Kirklees (207).

Collisions on the A637 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stBarnsley3945661169
2ndWakefield2774501162
3rdKirklees2073011331
4thBradford3300

A637 crashes by town

Collisions on the A637 were recorded in 6 towns and built-up areas, led by Flockton (141) and Barugh Green and Redbrook (99).

Recent crashes on the A637

These are the 25 most recent collisions on the A637, from 26 May 2023 to 4 December 2025.

Severity