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CrashStats

B166 accidents: crash map and statistics

Police recorded 218 collisions on the B166 from 1979 to 2025, with 245 casualties. Of those crashes, none were fatal and 44 were serious.

In 2025 there were 4 collisions on the B166, up 100% from 2 in 2024, with 4 casualties.

Collisions since 1979
218
3,134th highest of 4,923 roads
Casualties
245
1.12 per collision
Fatal collisions
0
No one killed
Serious collisions
44
46 seriously injured
Collisions in 2025
4
Up 100% on 2024
Casualties in 2025
4
Up 33% on 2024

Crash severity on the B166

None of the 218 collisions on the B166 were fatal, and 20% were serious (18% across Great Britain).

Collisions by severity, 1979 to 2025

  • Fatal00%
  • Serious4420%
  • Slight17480%

Where the B166 ranks among 4,923 roads

Most collisions
3,134th
Most casualties
3,379th
Most fatal collisions
4,444th
Most serious collisions
3,144th

B166 accidents by year

Collisions on the B166 peaked at 12 in 1997 and were down to 4 in 2025.

Collisions and casualties on the B166, 1979 to 2025

  • Collisions
  • Collisions in 2025: 4
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
202544
202423
202300
202244
202155
202055
201955
201811
201777
201678
201500
201467
201333
201244
201145
201033
200900
200833
200766
200611
200545
200423
200399
200279
200179
200078
199967
199822
19971214
199666
199522
1994910
199355
199267
199133
199044
1989710
198867
198789
198611
198579
198444
198345
198256
198156
198044
197967

When crashes happen on the B166

Friday has the most collisions on the B166 (52), and 3pm to 6pm is the busiest time of day (58).

Collisions by day of the week

  • Monday25 (11%)
  • Tuesday37 (17%)
  • Wednesday31 (14%)
  • Thursday21 (9.6%)
  • Friday52 (24%)
  • Saturday31 (14%)
  • Sunday21 (9.6%)

Collisions by time of day

  • Midnight to 3am5 (2.3%)
  • 3am to 6am2 (0.9%)
  • 6am to 9am18 (8.3%)
  • 9am to noon23 (11%)
  • Noon to 3pm44 (20%)
  • 3pm to 6pm58 (27%)
  • 6pm to 9pm44 (20%)
  • 9pm to midnight24 (11%)

Collisions by month

  • January21 (9.6%)
  • February25 (11%)
  • March12 (5.5%)
  • April26 (12%)
  • May15 (6.9%)
  • June22 (10%)
  • July15 (6.9%)
  • August17 (7.8%)
  • September12 (5.5%)
  • October16 (7.3%)
  • November22 (10%)
  • December15 (6.9%)

Light conditions at the time

  • Daylight152 (70%)
  • Dark, street lights lit62 (28%)
  • Dark, lighting unknown3 (1.4%)
  • Dark, no street lighting1 (0.5%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in B166 crashes

On the B166, 96% of collisions happened where the speed limit was 30 mph and 76% on a dry road surface.

Speed limit at the scene

  • 20 mph7 (3.2%)
  • 30 mph210 (96%)
  • 60 mph1 (0.5%)

Weather at the time

  • Fine, no high winds170 (78%)
  • Raining, no high winds23 (11%)
  • Fine with high winds2 (0.9%)
  • Snowing, no high winds2 (0.9%)
  • Other16 (7.3%)
  • Not recorded5 (2.3%)

Road surface

  • Dry165 (76%)
  • Wet or damp48 (22%)
  • Snow3 (1.4%)
  • Not recorded2 (0.9%)

Type of road

  • Single carriageway197 (90%)
  • Dual carriageway7 (3.2%)
  • One way street or slip road3 (1.4%)
  • Not recorded11 (5%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in B166 crashes

Car occupants make up 42% of the people killed or injured on the B166, followed by pedestrians (33%).

Casualties by road user

  • Car occupant102 (42%)
  • Pedestrian80 (33%)
  • Motorcyclist27 (11%)
  • Cyclist20 (8.2%)
  • Bus or coach occupant13 (5.3%)
  • Taxi or private hire car occupant2 (0.8%)
  • Not recorded1 (0.4%)

Vehicles involved

  • Car260 (72%)
  • Motorcycle29 (8.1%)
  • Bus or coach20 (5.6%)
  • Pedal cycle20 (5.6%)
  • Van or goods vehicle up to 3.5 tonnes17 (4.7%)
  • Goods vehicle over 3.5 tonnes6 (1.7%)
  • Taxi or private hire car4 (1.1%)
  • Other3 (0.8%)

Casualties by age

  • 0 to 58 (3.3%)
  • 6 to 1017 (6.9%)
  • 11 to 1518 (7.3%)
  • 16 to 2018 (7.3%)
  • 21 to 2538 (16%)
  • 26 to 3546 (19%)
  • 36 to 4534 (14%)
  • 46 to 5518 (7.3%)
  • 56 to 6510 (4.1%)
  • 66 to 758 (3.3%)
  • Over 7510 (4.1%)
  • Not recorded20 (8.2%)

Drivers, passengers and pedestrians

  • Driver or rider117 (48%)
  • Pedestrian80 (33%)
  • Passenger48 (20%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the B166

Map of the 25 most recent crashes on the B166

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

  • 25 crashes
  • Serious
  • Slight

B166 crashes by council area

Of the 218 collisions on the B166, 216 were in Newham.

Collisions on the B166 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stNewham216243044

B166 crashes by town

Of the 218 collisions on the B166, 201 were in the built-up area of Newham.

Recent crashes on the B166

These are the 25 most recent collisions on the B166, from 2 June 2019 to 26 November 2025.

Severity