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CrashStats

B1421 accidents: crash map and statistics

Police recorded 461 collisions on the B1421 from 1979 to 2025, with 602 casualties. Of those crashes, 2 were fatal and 80 serious, and 2 people were killed.

In 2025 there were 3 collisions on the B1421, down 50% from 6 in 2024, with 3 casualties.

Collisions since 1979
461
2,091st highest of 4,923 roads
Casualties
602
1.31 per collision
Fatal collisions
2
2 people killed
Serious collisions
80
89 seriously injured
Collisions in 2025
3
Down 50% on 2024
Casualties in 2025
3
Down 50% on 2024

Crash severity on the B1421

On the B1421, 0.4% of collisions were fatal and 17% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal20.4%
  • Serious8017%
  • Slight37982%

Where the B1421 ranks among 4,923 roads

Most collisions
2,091st
Most casualties
2,131st
Most fatal collisions
3,485th
Most serious collisions
2,279th

B1421 accidents by year

Collisions on the B1421 peaked at 26 in 1990 and were down to 3 in 2025.

Collisions and casualties on the B1421, 1979 to 2025

  • Collisions
  • Collisions in 2025: 3
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
202533
202466
202333
202244
202122
202044
2019611
201868
201748
201666
201545
201467
201366
201211
2011910
20101316
200933
20081014
2007914
2006712
2005913
20041012
200333
20021013
2001812
200069
19991221
19981522
19971320
19961722
1995812
19941217
19931415
199289
19911520
19902633
19891922
19881113
19871725
19861214
19851215
19841621
19831319
19821923
19811111
19802227
19791116

When crashes happen on the B1421

Saturday has the most collisions on the B1421 (77), and 3pm to 6pm is the busiest time of day (119).

Collisions by day of the week

  • Monday65 (14%)
  • Tuesday75 (16%)
  • Wednesday49 (11%)
  • Thursday68 (15%)
  • Friday75 (16%)
  • Saturday77 (17%)
  • Sunday52 (11%)

Collisions by time of day

  • Midnight to 3am6 (1.3%)
  • 3am to 6am9 (2%)
  • 6am to 9am59 (13%)
  • 9am to noon72 (16%)
  • Noon to 3pm75 (16%)
  • 3pm to 6pm119 (26%)
  • 6pm to 9pm75 (16%)
  • 9pm to midnight46 (10%)

Collisions by month

  • January34 (7.4%)
  • February26 (5.6%)
  • March42 (9.1%)
  • April39 (8.5%)
  • May31 (6.7%)
  • June38 (8.2%)
  • July42 (9.1%)
  • August42 (9.1%)
  • September42 (9.1%)
  • October42 (9.1%)
  • November46 (10%)
  • December37 (8%)

Light conditions at the time

  • Daylight339 (74%)
  • Dark, street lights lit96 (21%)
  • Dark, no street lighting21 (4.6%)
  • Dark, lighting unknown3 (0.7%)
  • Dark, street lights unlit2 (0.4%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in B1421 crashes

On the B1421, 84% of collisions happened where the speed limit was 30 mph and 70% on a dry road surface.

Speed limit at the scene

  • 30 mph388 (84%)
  • 40 mph18 (3.9%)
  • 50 mph1 (0.2%)
  • 60 mph46 (10%)
  • 70 mph8 (1.7%)

Weather at the time

  • Fine, no high winds338 (73%)
  • Raining, no high winds60 (13%)
  • Fine with high winds6 (1.3%)
  • Snowing, no high winds3 (0.7%)
  • Other47 (10%)
  • Not recorded7 (1.5%)

Road surface

  • Dry321 (70%)
  • Wet or damp127 (28%)
  • Frost or ice5 (1.1%)
  • Snow5 (1.1%)
  • Flood over 3cm deep1 (0.2%)
  • Not recorded2 (0.4%)

Type of road

  • Single carriageway405 (88%)
  • Roundabout11 (2.4%)
  • Dual carriageway8 (1.7%)
  • One way street or slip road1 (0.2%)
  • Not recorded36 (7.8%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in B1421 crashes

Car occupants make up 61% of the people killed or injured on the B1421, followed by pedestrians (17%).

Casualties by road user

  • Car occupant366 (61%)
  • Pedestrian101 (17%)
  • Motorcyclist55 (9.1%)
  • Cyclist38 (6.3%)
  • Bus or coach occupant22 (3.7%)
  • Van occupant11 (1.8%)
  • Goods vehicle occupant (over 3.5 tonnes)4 (0.7%)
  • Other5 (0.8%)

Vehicles involved

  • Car612 (76%)
  • Motorcycle58 (7.2%)
  • Pedal cycle42 (5.2%)
  • Van or goods vehicle up to 3.5 tonnes39 (4.9%)
  • Bus or coach20 (2.5%)
  • Goods vehicle over 3.5 tonnes14 (1.7%)
  • Other vehicle12 (1.5%)
  • Other4 (0.5%)

Casualties by age

  • 0 to 510 (1.7%)
  • 6 to 1017 (2.8%)
  • 11 to 1553 (8.8%)
  • 16 to 20126 (21%)
  • 21 to 2564 (11%)
  • 26 to 3585 (14%)
  • 36 to 4570 (12%)
  • 46 to 5552 (8.6%)
  • 56 to 6541 (6.8%)
  • 66 to 7534 (5.6%)
  • Over 7513 (2.2%)
  • Not recorded37 (6.1%)

Drivers, passengers and pedestrians

  • Driver or rider355 (59%)
  • Passenger146 (24%)
  • Pedestrian101 (17%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the B1421

Map of the 25 most recent crashes on the B1421

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

  • 25 crashes
  • Serious
  • Slight

B1421 crashes by council area

Of the 461 collisions on the B1421, 459 were in Havering.

Collisions on the B1421 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stHavering459599280

B1421 crashes by town

Of the 461 collisions on the B1421, 310 were in the built-up area of Havering.

Recent crashes on the B1421

These are the 25 most recent collisions on the B1421, from 15 June 2019 to 1 December 2025.

Severity