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CrashStats

B1000 accidents: crash map and statistics

Police recorded 453 collisions on the B1000 from 1979 to 2025, with 716 casualties. Of those crashes, 11 were fatal and 103 serious, and 12 people were killed.

In 2025 there were 7 collisions on the B1000, up 75% from 4 in 2024, with 15 casualties.

Collisions since 1979
453
2,116th highest of 4,923 roads
Casualties
716
1.58 per collision
Fatal collisions
11
12 people killed
Serious collisions
103
138 seriously injured
Collisions in 2025
7
Up 75% on 2024
Casualties in 2025
15
Up 114% on 2024

Crash severity on the B1000

On the B1000, 2.4% of collisions were fatal and 23% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal112.4%
  • Serious10323%
  • Slight33975%

Where the B1000 ranks among 4,923 roads

Most collisions
2,116th
Most casualties
1,891st
Most fatal collisions
1,595th
Most serious collisions
1,865th

B1000 accidents by year

Collisions on the B1000 peaked at 20 in 1984 and were down to 7 in 2025.

Collisions and casualties on the B1000, 1979 to 2025

  • Collisions
  • Collisions in 2025
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
2025715
202447
202311
202224
202122
202022
201959
201846
2017715
201658
2015619
2014712
201345
2012710
20111015
201088
2009814
2008912
2007910
20061121
20051115
20041322
20031222
2002814
20011017
20001832
19991222
19981321
19971630
19961017
19951117
19941214
19931620
19921315
1991711
19901823
19891725
19881419
198756
19861015
19851220
19842024
19831836
1982813
1981611
19801418
19791122

When crashes happen on the B1000

Monday has the most collisions on the B1000 (77), and 6am to 9am is the busiest time of day (95).

Collisions by day of the week

  • Monday77 (17%)
  • Tuesday61 (13%)
  • Wednesday73 (16%)
  • Thursday67 (15%)
  • Friday77 (17%)
  • Saturday68 (15%)
  • Sunday30 (6.6%)

Collisions by time of day

  • Midnight to 3am14 (3.1%)
  • 3am to 6am6 (1.3%)
  • 6am to 9am95 (21%)
  • 9am to noon61 (13%)
  • Noon to 3pm61 (13%)
  • 3pm to 6pm94 (21%)
  • 6pm to 9pm79 (17%)
  • 9pm to midnight43 (9.5%)

Collisions by month

  • January51 (11%)
  • February33 (7.3%)
  • March32 (7.1%)
  • April38 (8.4%)
  • May27 (6%)
  • June38 (8.4%)
  • July39 (8.6%)
  • August27 (6%)
  • September37 (8.2%)
  • October36 (7.9%)
  • November60 (13%)
  • December35 (7.7%)

Light conditions at the time

  • Daylight326 (72%)
  • Dark, no street lighting92 (20%)
  • Dark, street lights lit32 (7.1%)
  • Dark, lighting unknown3 (0.7%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in B1000 crashes

On the B1000, 68% of collisions happened where the speed limit was 60 mph and 55% on a dry road surface.

Speed limit at the scene

  • 30 mph98 (22%)
  • 40 mph42 (9.3%)
  • 60 mph306 (68%)
  • 70 mph7 (1.5%)

Weather at the time

  • Fine, no high winds357 (79%)
  • Raining, no high winds66 (15%)
  • Fog or mist8 (1.8%)
  • Fine with high winds7 (1.5%)
  • Other12 (2.6%)
  • Not recorded3 (0.7%)

Road surface

  • Dry247 (55%)
  • Wet or damp186 (41%)
  • Frost or ice14 (3.1%)
  • Snow3 (0.7%)
  • Flood over 3cm deep2 (0.4%)
  • Not recorded1 (0.2%)

Type of road

  • Single carriageway439 (97%)
  • Roundabout8 (1.8%)
  • One way street or slip road3 (0.7%)
  • Dual carriageway2 (0.4%)
  • Not recorded1 (0.2%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in B1000 crashes

Car occupants make up 79% of the people killed or injured on the B1000, followed by motorcyclists (8.5%).

Casualties by road user

  • Car occupant565 (79%)
  • Motorcyclist61 (8.5%)
  • Cyclist34 (4.7%)
  • Pedestrian28 (3.9%)
  • Van occupant18 (2.5%)
  • Taxi or private hire car occupant5 (0.7%)
  • Goods vehicle occupant (over 3.5 tonnes)3 (0.4%)
  • Other vehicle occupant2 (0.3%)

Vehicles involved

  • Car703 (81%)
  • Motorcycle58 (6.7%)
  • Pedal cycle36 (4.2%)
  • Van or goods vehicle up to 3.5 tonnes36 (4.2%)
  • Goods vehicle over 3.5 tonnes14 (1.6%)
  • Bus or coach8 (0.9%)
  • Taxi or private hire car6 (0.7%)
  • Other4 (0.5%)

Casualties by age

  • 0 to 515 (2.1%)
  • 6 to 1024 (3.4%)
  • 11 to 1526 (3.6%)
  • 16 to 20122 (17%)
  • 21 to 2598 (14%)
  • 26 to 35163 (23%)
  • 36 to 45113 (16%)
  • 46 to 5572 (10%)
  • 56 to 6546 (6.4%)
  • 66 to 7520 (2.8%)
  • Over 7513 (1.8%)
  • Not recorded4 (0.6%)

Drivers, passengers and pedestrians

  • Driver or rider514 (72%)
  • Passenger174 (24%)
  • Pedestrian28 (3.9%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the B1000

Map of the 25 most recent crashes on the B1000

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

  • 25 crashes
  • Serious
  • Slight

B1000 crashes by council area

Collisions on the B1000 were recorded in 2 council areas. East Hertfordshire has the most, with 238, followed by Welwyn Hatfield (210).

Collisions on the B1000 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stEast Hertfordshire238388956
2ndWelwyn Hatfield210321247

B1000 crashes by town

Collisions on the B1000 were recorded in 2 towns and built-up areas, led by Hertford (60) and Welwyn Garden City (24).

Recent crashes on the B1000

These are the 25 most recent collisions on the B1000, from 22 August 2018 to 13 December 2025.

Severity