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CrashStats

B186 accidents: crash map and statistics

Police recorded 1,941 collisions on the B186 from 1979 to 2025, with 2,693 casualties. Of those crashes, 20 were fatal and 371 serious, and 22 people were killed.

In 2025 there were 29 collisions on the B186, up 81% from 16 in 2024, with 37 casualties.

Collisions since 1979
1,941
596th highest of 4,923 roads
Casualties
2,693
1.39 per collision
Fatal collisions
20
22 people killed
Serious collisions
371
445 seriously injured
Collisions in 2025
29
Up 81% on 2024
Casualties in 2025
37
Up 68% on 2024

Crash severity on the B186

On the B186, 1% of collisions were fatal and 19% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal201%
  • Serious37119%
  • Slight1,55080%

Where the B186 ranks among 4,923 roads

Most collisions
596th
Most casualties
589th
Most fatal collisions
983rd
Most serious collisions
582nd

B186 accidents by year

Collisions on the B186 peaked at 94 in 1981 and were down to 29 in 2025.

Collisions and casualties on the B186, 1979 to 2025

  • Collisions
  • Collisions in 2025: 29
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
20252937
20241622
20232230
20223549
20212946
20202329
20192433
20182737
20172026
20162534
20152431
20142942
20132636
20123547
20112330
20103238
20092130
20082641
20072637
20063351
20054151
20042835
20033949
20023748
20014659
20003957
19994268
19985678
19975368
19965266
19954053
19944968
19933952
19923947
19912633
19905779
198964106
19886485
19876183
19866787
19854774
19845464
19835779
198272107
198194150
198074102
197979119

When crashes happen on the B186

Friday has the most collisions on the B186 (326), and 3pm to 6pm is the busiest time of day (409).

Collisions by day of the week

  • Monday275 (14%)
  • Tuesday283 (15%)
  • Wednesday245 (13%)
  • Thursday282 (15%)
  • Friday326 (17%)
  • Saturday295 (15%)
  • Sunday235 (12%)

Collisions by time of day

  • Midnight to 3am80 (4.1%)
  • 3am to 6am32 (1.6%)
  • 6am to 9am257 (13%)
  • 9am to noon264 (14%)
  • Noon to 3pm353 (18%)
  • 3pm to 6pm409 (21%)
  • 6pm to 9pm307 (16%)
  • 9pm to midnight239 (12%)

Collisions by month

  • January184 (9.5%)
  • February155 (8%)
  • March147 (7.6%)
  • April154 (7.9%)
  • May145 (7.5%)
  • June148 (7.6%)
  • July156 (8%)
  • August139 (7.2%)
  • September162 (8.3%)
  • October183 (9.4%)
  • November189 (9.7%)
  • December179 (9.2%)

Light conditions at the time

  • Daylight1,305 (67%)
  • Dark, street lights lit531 (27%)
  • Dark, no street lighting84 (4.3%)
  • Dark, lighting unknown12 (0.6%)
  • Dark, street lights unlit9 (0.5%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in B186 crashes

On the B186, 63% of collisions happened where the speed limit was 30 mph and 62% on a dry road surface.

Speed limit at the scene

  • 20 mph2 (0.1%)
  • 30 mph1,226 (63%)
  • 40 mph232 (12%)
  • 50 mph22 (1.1%)
  • 60 mph413 (21%)
  • 70 mph46 (2.4%)

Weather at the time

  • Fine, no high winds1,470 (76%)
  • Raining, no high winds300 (15%)
  • Fine with high winds23 (1.2%)
  • Raining with high winds22 (1.1%)
  • Other113 (5.8%)
  • Not recorded13 (0.7%)

Road surface

  • Dry1,202 (62%)
  • Wet or damp672 (35%)
  • Frost or ice47 (2.4%)
  • Snow11 (0.6%)
  • Other8 (0.4%)
  • Not recorded1 (0.1%)

Type of road

  • Single carriageway1,632 (84%)
  • Roundabout143 (7.4%)
  • Dual carriageway110 (5.7%)
  • One way street or slip road24 (1.2%)
  • Not recorded32 (1.6%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in B186 crashes

Car occupants make up 70% of the people killed or injured on the B186, followed by pedestrians (11%).

Casualties by road user

  • Car occupant1,890 (70%)
  • Pedestrian303 (11%)
  • Motorcyclist244 (9.1%)
  • Cyclist94 (3.5%)
  • Van occupant87 (3.2%)
  • Goods vehicle occupant (over 3.5 tonnes)27 (1%)
  • Other47 (1.7%)
  • Not recorded1 (under 0.1%)

Vehicles involved

  • Car2,899 (79%)
  • Motorcycle246 (6.7%)
  • Van or goods vehicle up to 3.5 tonnes195 (5.3%)
  • Goods vehicle over 3.5 tonnes109 (3%)
  • Pedal cycle96 (2.6%)
  • Bus or coach48 (1.3%)
  • Other53 (1.5%)
  • Not recorded1 (under 0.1%)

Casualties by age

  • 0 to 538 (1.4%)
  • 6 to 1062 (2.3%)
  • 11 to 15121 (4.5%)
  • 16 to 20523 (19%)
  • 21 to 25369 (14%)
  • 26 to 35532 (20%)
  • 36 to 45415 (15%)
  • 46 to 55245 (9.1%)
  • 56 to 65163 (6.1%)
  • 66 to 7597 (3.6%)
  • Over 7554 (2%)
  • Not recorded74 (2.7%)

Drivers, passengers and pedestrians

  • Driver or rider1,612 (60%)
  • Passenger778 (29%)
  • Pedestrian303 (11%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the B186

Map of the 25 most recent crashes on the B186

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

  • 25 crashes
  • Serious
  • Slight

B186 crashes by council area

Collisions on the B186 were recorded in 3 council areas. Thurrock has the most, with 947, followed by Brentwood (755) and Havering (234).

Collisions on the B186 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stThurrock9471,3286189
2ndBrentwood7551,0139137
3rdHavering234346545

B186 crashes by town

Collisions on the B186 were recorded in 5 towns and built-up areas, led by Brentwood (473) and South Ockendon (274).

Recent crashes on the B186

These are the 25 most recent collisions on the B186, from 6 March to 28 December 2025.

Severity