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CrashStats

A1001 accidents: crash map and statistics

Police recorded 845 collisions on the A1001 from 1979 to 2025, with 1,254 casualties. Of those crashes, 13 were fatal and 127 serious, and 13 people were killed.

In 2025 there were 8 collisions on the A1001, down 33% from 12 in 2024, with 11 casualties.

Collisions since 1979
845
1,264th highest of 4,923 roads
Casualties
1,254
1.48 per collision
Fatal collisions
13
13 people killed
Serious collisions
127
156 seriously injured
Collisions in 2025
8
Down 33% on 2024
Casualties in 2025
11
Down 27% on 2024

Crash severity on the A1001

On the A1001, 1.5% of collisions were fatal and 15% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal131.5%
  • Serious12715%
  • Slight70583%

Where the A1001 ranks among 4,923 roads

Most collisions
1,264th
Most casualties
1,180th
Most fatal collisions
1,413th
Most serious collisions
1,582nd

A1001 accidents by year

Collisions on the A1001 peaked at 40 in 2003 and were down to 8 in 2025.

Collisions and casualties on the A1001, 1979 to 2025

  • Collisions
  • Collisions in 2025: 8
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
2025811
20241215
202369
2022813
202156
2020810
20191530
20181015
20172033
20162230
20151520
20142231
20131721
20121527
20112440
20101420
20091826
20082635
20073147
20062237
20053042
20043451
20034060
20023142
20013239
20002946
19992734
19983463
19973043
19962539
19952348
19943041
19932633
19922229
19911828
19902127
19891521
19882232
19871012
198622
198535
198437
198337
198249
198122
198046
1979710

When crashes happen on the A1001

Tuesday has the most collisions on the A1001 (149), and 3pm to 6pm is the busiest time of day (212).

Collisions by day of the week

  • Monday113 (13%)
  • Tuesday149 (18%)
  • Wednesday134 (16%)
  • Thursday146 (17%)
  • Friday129 (15%)
  • Saturday108 (13%)
  • Sunday66 (7.8%)

Collisions by time of day

  • Midnight to 3am22 (2.6%)
  • 3am to 6am17 (2%)
  • 6am to 9am118 (14%)
  • 9am to noon121 (14%)
  • Noon to 3pm162 (19%)
  • 3pm to 6pm212 (25%)
  • 6pm to 9pm121 (14%)
  • 9pm to midnight72 (8.5%)

Collisions by month

  • January88 (10%)
  • February64 (7.6%)
  • March56 (6.6%)
  • April64 (7.6%)
  • May73 (8.6%)
  • June69 (8.2%)
  • July61 (7.2%)
  • August58 (6.9%)
  • September63 (7.5%)
  • October84 (9.9%)
  • November95 (11%)
  • December70 (8.3%)

Light conditions at the time

  • Daylight600 (71%)
  • Dark, street lights lit218 (26%)
  • Dark, no street lighting12 (1.4%)
  • Dark, lighting unknown8 (0.9%)
  • Dark, street lights unlit7 (0.8%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in A1001 crashes

On the A1001, 43% of collisions happened where the speed limit was 50 mph and 66% on a dry road surface.

Speed limit at the scene

  • 30 mph138 (16%)
  • 40 mph36 (4.3%)
  • 50 mph360 (43%)
  • 60 mph272 (32%)
  • 70 mph39 (4.6%)

Weather at the time

  • Fine, no high winds682 (81%)
  • Raining, no high winds107 (13%)
  • Raining with high winds12 (1.4%)
  • Fine with high winds6 (0.7%)
  • Other28 (3.3%)
  • Not recorded10 (1.2%)

Road surface

  • Dry555 (66%)
  • Wet or damp264 (31%)
  • Frost or ice19 (2.2%)
  • Snow6 (0.7%)
  • Not recorded1 (0.1%)

Type of road

  • Single carriageway340 (40%)
  • Roundabout332 (39%)
  • Dual carriageway167 (20%)
  • One way street or slip road4 (0.5%)
  • Not recorded2 (0.2%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in A1001 crashes

Car occupants make up 76% of the people killed or injured on the A1001, followed by motorcyclists (11%).

Casualties by road user

  • Car occupant950 (76%)
  • Motorcyclist133 (11%)
  • Cyclist56 (4.5%)
  • Van occupant42 (3.3%)
  • Pedestrian38 (3%)
  • Taxi or private hire car occupant20 (1.6%)
  • Goods vehicle occupant (over 3.5 tonnes)11 (0.9%)
  • Other4 (0.3%)

Vehicles involved

  • Car1,345 (77%)
  • Motorcycle137 (7.9%)
  • Goods vehicle over 3.5 tonnes91 (5.2%)
  • Van or goods vehicle up to 3.5 tonnes73 (4.2%)
  • Pedal cycle57 (3.3%)
  • Bus or coach13 (0.7%)
  • Taxi or private hire car13 (0.7%)
  • Other9 (0.5%)

Casualties by age

  • 0 to 514 (1.1%)
  • 6 to 1022 (1.8%)
  • 11 to 1527 (2.2%)
  • 16 to 20207 (17%)
  • 21 to 25226 (18%)
  • 26 to 35290 (23%)
  • 36 to 45207 (17%)
  • 46 to 55125 (10%)
  • 56 to 6577 (6.1%)
  • 66 to 7533 (2.6%)
  • Over 7520 (1.6%)
  • Not recorded6 (0.5%)

Drivers, passengers and pedestrians

  • Driver or rider886 (71%)
  • Passenger330 (26%)
  • Pedestrian38 (3%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the A1001

Map of the 25 most recent crashes on the A1001

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

  • 25 crashes
  • Serious
  • Slight

A1001 crashes by council area

Of the 845 collisions on the A1001, 840 were in Welwyn Hatfield.

Collisions on the A1001 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stWelwyn Hatfield8401,24913127

A1001 crashes by town

Of the 845 collisions on the A1001, 281 were in the built-up area of Hatfield.

Recent crashes on the A1001

These are the 25 most recent collisions on the A1001, from 16 February 2023 to 19 November 2025.

Severity