Skip to main content
CrashStats

A1421 accidents: crash map and statistics

Police recorded 137 collisions on the A1421 from 1979 to 2025, with 175 casualties. Of those crashes, 4 were fatal and 39 serious, and 4 people were killed.

In 2025 there were 2 collisions on the A1421, level with 2024, with 3 casualties.

Collisions since 1979
137
3,702nd highest of 4,923 roads
Casualties
175
1.28 per collision
Fatal collisions
4
4 people killed
Serious collisions
39
46 seriously injured
Collisions in 2025
2
Level with 2024
Casualties in 2025
3
Down 25% on 2024

Crash severity on the A1421

On the A1421, 2.9% of collisions were fatal and 28% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal42.9%
  • Serious3928%
  • Slight9469%

Where the A1421 ranks among 4,923 roads

Most collisions
3,702nd
Most casualties
3,773rd
Most fatal collisions
2,815th
Most serious collisions
3,304th

A1421 accidents by year

Collisions on the A1421 peaked at 10 in 2004 and were down to 2 in 2025.

Collisions and casualties on the A1421, 1979 to 2025

  • Collisions
  • Collisions in 2025: 2
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
202523
202424
202347
202222
202111
202012
201900
201800
201712
201600
201524
201422
201311
201211
201111
201023
200912
200822
200711
200622
200511
20041011
200399
200268
200133
2000813
199936
199822
199766
199623
199522
199413
199355
199267
199122
199011
198945
198879
198758
1986912
198500
198456
198311
198245
198133
198033
197911

When crashes happen on the A1421

Wednesday has the most collisions on the A1421 (25), and 6am to 9am is the busiest time of day (29).

Collisions by day of the week

  • Monday22 (16%)
  • Tuesday18 (13%)
  • Wednesday25 (18%)
  • Thursday16 (12%)
  • Friday22 (16%)
  • Saturday22 (16%)
  • Sunday12 (8.8%)

Collisions by time of day

  • Midnight to 3am4 (2.9%)
  • 3am to 6am1 (0.7%)
  • 6am to 9am29 (21%)
  • 9am to noon20 (15%)
  • Noon to 3pm21 (15%)
  • 3pm to 6pm24 (18%)
  • 6pm to 9pm26 (19%)
  • 9pm to midnight12 (8.8%)

Collisions by month

  • January16 (12%)
  • February12 (8.8%)
  • March10 (7.3%)
  • April8 (5.8%)
  • May11 (8%)
  • June8 (5.8%)
  • July7 (5.1%)
  • August8 (5.8%)
  • September11 (8%)
  • October18 (13%)
  • November18 (13%)
  • December10 (7.3%)

Light conditions at the time

  • Daylight99 (72%)
  • Dark, no street lighting24 (18%)
  • Dark, street lights lit6 (4.4%)
  • Dark, street lights unlit5 (3.6%)
  • Dark, lighting unknown3 (2.2%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in A1421 crashes

On the A1421, 71% of collisions happened where the speed limit was 60 mph and 50% on a dry road surface.

Speed limit at the scene

  • 20 mph1 (0.7%)
  • 30 mph31 (23%)
  • 40 mph4 (2.9%)
  • 50 mph3 (2.2%)
  • 60 mph97 (71%)
  • 70 mph1 (0.7%)

Weather at the time

  • Fine, no high winds101 (74%)
  • Raining, no high winds12 (8.8%)
  • Fine with high winds5 (3.6%)
  • Raining with high winds4 (2.9%)
  • Other9 (6.6%)
  • Not recorded6 (4.4%)

Road surface

  • Dry69 (50%)
  • Wet or damp59 (43%)
  • Frost or ice7 (5.1%)
  • Snow2 (1.5%)

Type of road

  • Single carriageway136 (99%)
  • Dual carriageway1 (0.7%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in A1421 crashes

Car occupants make up 73% of the people killed or injured on the A1421, followed by motorcyclists (14%).

Casualties by road user

  • Car occupant128 (73%)
  • Motorcyclist24 (14%)
  • Pedestrian7 (4%)
  • Cyclist6 (3.4%)
  • Van occupant5 (2.9%)
  • Goods vehicle occupant (over 3.5 tonnes)2 (1.1%)
  • Taxi or private hire car occupant2 (1.1%)
  • Agricultural vehicle occupant1 (0.6%)

Vehicles involved

  • Car158 (74%)
  • Motorcycle24 (11%)
  • Goods vehicle over 3.5 tonnes10 (4.7%)
  • Van or goods vehicle up to 3.5 tonnes8 (3.8%)
  • Pedal cycle6 (2.8%)
  • Agricultural vehicle5 (2.3%)
  • Other vehicle1 (0.5%)
  • Taxi or private hire car1 (0.5%)

Casualties by age

  • 0 to 51 (0.6%)
  • 6 to 104 (2.3%)
  • 11 to 156 (3.4%)
  • 16 to 2056 (32%)
  • 21 to 2526 (15%)
  • 26 to 3531 (18%)
  • 36 to 4521 (12%)
  • 46 to 5517 (9.7%)
  • 56 to 657 (4%)
  • 66 to 753 (1.7%)
  • Over 752 (1.1%)
  • Not recorded1 (0.6%)

Drivers, passengers and pedestrians

  • Driver or rider130 (74%)
  • Passenger38 (22%)
  • Pedestrian7 (4%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the A1421

Map of the 25 most recent crashes on the A1421

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

  • 25 crashes
  • Fatal
  • Serious
  • Slight

A1421 crashes by council area

All 137 collisions on the A1421 were in East Cambridgeshire.

Collisions on the A1421 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stEast Cambridgeshire137175439

A1421 crashes by town

Of the 137 collisions on the A1421, 29 were in the built-up area of Haddenham, East Cambridgeshire.

Recent crashes on the A1421

These are the 25 most recent collisions on the A1421, from 15 September 2008 to 30 June 2025.

Severity