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CrashStats

B486 accidents: crash map and statistics

Police recorded 100 collisions on the B486 from 1981 to 2025, with 121 casualties. Of those crashes, none were fatal and 22 were serious.

In 2025 there were 2 collisions on the B486, up from none in 2024, with 2 casualties.

Collisions since 1981
100
4,039th highest of 4,923 roads
Casualties
121
1.21 per collision
Fatal collisions
0
No one killed
Serious collisions
22
23 seriously injured
Collisions in 2025
2
Up from none in 2024
Casualties in 2025
2
Up from none in 2024

Crash severity on the B486

None of the 100 collisions on the B486 were fatal, and 22% were serious (18% across Great Britain).

Collisions by severity, 1981 to 2025

  • Fatal00%
  • Serious2222%
  • Slight7878%

Where the B486 ranks among 4,923 roads

Most collisions
4,039th
Most casualties
4,140th
Most fatal collisions
4,444th
Most serious collisions
3,946th

B486 accidents by year

Collisions on the B486 peaked at 5 in 2006 and were down to 2 in 2025.

Collisions and casualties on the B486, 1981 to 2025

  • Collisions
  • Collisions in 2025: 2
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
202522
202400
202333
202211
202112
202022
201912
201800
201700
201600
201500
201422
201311
201211
201145
201034
200900
200811
200734
200656
200534
200411
200322
200223
200122
200033
199944
199845
199733
199656
199534
199446
199311
199222
199100
199022
198944
198833
198723
198646
198526
198434
198344
198244
198133

When crashes happen on the B486

Monday has the most collisions on the B486 (18), and 3pm to 6pm is the busiest time of day (24).

Collisions by day of the week

  • Monday18 (18%)
  • Tuesday10 (10%)
  • Wednesday10 (10%)
  • Thursday16 (16%)
  • Friday14 (14%)
  • Saturday16 (16%)
  • Sunday16 (16%)

Collisions by time of day

  • Midnight to 3am3 (3%)
  • 3am to 6am1 (1%)
  • 6am to 9am14 (14%)
  • 9am to noon19 (19%)
  • Noon to 3pm19 (19%)
  • 3pm to 6pm24 (24%)
  • 6pm to 9pm14 (14%)
  • 9pm to midnight6 (6%)

Collisions by month

  • January3 (3%)
  • February4 (4%)
  • March6 (6%)
  • April12 (12%)
  • May7 (7%)
  • June8 (8%)
  • July11 (11%)
  • August6 (6%)
  • September10 (10%)
  • October13 (13%)
  • November11 (11%)
  • December9 (9%)

Light conditions at the time

  • Daylight82 (82%)
  • Dark, street lights lit15 (15%)
  • Dark, street lights unlit3 (3%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in B486 crashes

On the B486, 99% of collisions happened where the speed limit was 30 mph and 61% on a dry road surface.

Speed limit at the scene

  • 20 mph1 (1%)
  • 30 mph99 (99%)

Weather at the time

  • Fine, no high winds77 (77%)
  • Raining, no high winds19 (19%)
  • Raining with high winds2 (2%)
  • Snowing with high winds1 (1%)
  • Other1 (1%)

Road surface

  • Dry61 (61%)
  • Wet or damp36 (36%)
  • Frost or ice1 (1%)
  • Snow1 (1%)
  • Not recorded1 (1%)

Type of road

  • Single carriageway99 (99%)
  • One way street or slip road1 (1%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in B486 crashes

Car occupants make up 44% of the people killed or injured on the B486, followed by pedestrians (28%).

Casualties by road user

  • Car occupant53 (44%)
  • Pedestrian34 (28%)
  • Motorcyclist18 (15%)
  • Cyclist15 (12%)
  • Van occupant1 (0.8%)

Vehicles involved

  • Car134 (75%)
  • Motorcycle17 (9.5%)
  • Pedal cycle15 (8.4%)
  • Van or goods vehicle up to 3.5 tonnes6 (3.4%)
  • Other vehicle3 (1.7%)
  • Bus or coach2 (1.1%)
  • Agricultural vehicle1 (0.6%)
  • Goods vehicle over 3.5 tonnes1 (0.6%)

Casualties by age

  • 0 to 56 (5%)
  • 6 to 106 (5%)
  • 11 to 1524 (20%)
  • 16 to 2030 (25%)
  • 21 to 2511 (9.1%)
  • 26 to 3519 (16%)
  • 36 to 4510 (8.3%)
  • 46 to 557 (5.8%)
  • 56 to 651 (0.8%)
  • 66 to 756 (5%)
  • Over 751 (0.8%)

Drivers, passengers and pedestrians

  • Driver or rider66 (55%)
  • Pedestrian34 (28%)
  • Passenger21 (17%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the B486

Map of the 25 most recent crashes on the B486

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

  • 25 crashes
  • Serious
  • Slight

B486 crashes by council area

All 100 collisions on the B486 were in Dacorum.

Collisions on the B486 in each area, 1981 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stDacorum100121022

B486 crashes by town

Of the 100 collisions on the B486, 97 were in the built-up area of Tring.

Recent crashes on the B486

These are the 25 most recent collisions on the B486, from 30 May 2007 to 13 December 2025.

Severity