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CrashStats

B416 accidents: crash map and statistics

Police recorded 1,296 collisions on the B416 from 1979 to 2025, with 1,759 casualties. Of those crashes, 26 were fatal and 197 serious, and 26 people were killed.

In 2025 there were 11 collisions on the B416, up 22% from 9 in 2024, with 12 casualties.

Collisions since 1979
1,296
851st highest of 4,923 roads
Casualties
1,759
1.36 per collision
Fatal collisions
26
26 people killed
Serious collisions
197
235 seriously injured
Collisions in 2025
11
Up 22% on 2024
Casualties in 2025
12
Level with 2024

Crash severity on the B416

On the B416, 2% of collisions were fatal and 15% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal262%
  • Serious19715%
  • Slight1,07383%

Where the B416 ranks among 4,923 roads

Most collisions
851st
Most casualties
845th
Most fatal collisions
771st
Most serious collisions
1,059th

B416 accidents by year

Collisions on the B416 peaked at 45 in 1986 and were down to 11 in 2025.

Collisions and casualties on the B416, 1979 to 2025

  • Collisions
  • Collisions in 2025: 11
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
20251112
2024912
20231217
20221011
20211113
20201017
20191519
20181319
20171318
20161823
20152837
20142735
20132229
20122140
20111722
20103144
20093547
20082332
20073142
20062841
20052539
20043954
20032230
20023237
20013957
20003240
19993753
19982937
19972940
19963144
19952224
19943951
19933139
19923544
19913037
19904162
19893344
19884260
19872939
19864573
19853950
19844557
19833952
19822632
19813036
19803142
19793956

When crashes happen on the B416

Friday has the most collisions on the B416 (218), and 3pm to 6pm is the busiest time of day (275).

Collisions by day of the week

  • Monday185 (14%)
  • Tuesday169 (13%)
  • Wednesday204 (16%)
  • Thursday213 (16%)
  • Friday218 (17%)
  • Saturday173 (13%)
  • Sunday134 (10%)

Collisions by time of day

  • Midnight to 3am55 (4.2%)
  • 3am to 6am15 (1.2%)
  • 6am to 9am175 (14%)
  • 9am to noon182 (14%)
  • Noon to 3pm219 (17%)
  • 3pm to 6pm275 (21%)
  • 6pm to 9pm230 (18%)
  • 9pm to midnight145 (11%)

Collisions by month

  • January104 (8%)
  • February108 (8.3%)
  • March104 (8%)
  • April98 (7.6%)
  • May105 (8.1%)
  • June100 (7.7%)
  • July96 (7.4%)
  • August98 (7.6%)
  • September95 (7.3%)
  • October133 (10%)
  • November123 (9.5%)
  • December132 (10%)

Light conditions at the time

  • Daylight858 (66%)
  • Dark, street lights lit229 (18%)
  • Dark, no street lighting171 (13%)
  • Dark, lighting unknown29 (2.2%)
  • Dark, street lights unlit7 (0.5%)
  • Not recorded2 (0.2%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in B416 crashes

On the B416, 61% of collisions happened where the speed limit was 30 mph and 64% on a dry road surface.

Speed limit at the scene

  • 30 mph794 (61%)
  • 40 mph234 (18%)
  • 50 mph9 (0.7%)
  • 60 mph259 (20%)

Weather at the time

  • Fine, no high winds1,008 (78%)
  • Raining, no high winds178 (14%)
  • Raining with high winds15 (1.2%)
  • Fine with high winds14 (1.1%)
  • Other66 (5.1%)
  • Not recorded15 (1.2%)

Road surface

  • Dry833 (64%)
  • Wet or damp416 (32%)
  • Frost or ice33 (2.5%)
  • Snow6 (0.5%)
  • Other3 (0.2%)
  • Not recorded5 (0.4%)

Type of road

  • Single carriageway1,195 (92%)
  • Dual carriageway65 (5%)
  • Roundabout23 (1.8%)
  • One way street or slip road10 (0.8%)
  • Not recorded3 (0.2%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in B416 crashes

Car occupants make up 69% of the people killed or injured on the B416, followed by pedestrians (11%).

Casualties by road user

  • Car occupant1,219 (69%)
  • Pedestrian196 (11%)
  • Motorcyclist165 (9.4%)
  • Cyclist120 (6.8%)
  • Van occupant28 (1.6%)
  • Taxi or private hire car occupant10 (0.6%)
  • Bus or coach occupant6 (0.3%)
  • Other15 (0.9%)

Vehicles involved

  • Car1,997 (80%)
  • Motorcycle170 (6.8%)
  • Pedal cycle125 (5%)
  • Van or goods vehicle up to 3.5 tonnes80 (3.2%)
  • Bus or coach30 (1.2%)
  • Goods vehicle over 3.5 tonnes30 (1.2%)
  • Other44 (1.8%)
  • Not recorded8 (0.3%)

Casualties by age

  • 0 to 518 (1%)
  • 6 to 1036 (2%)
  • 11 to 1591 (5.2%)
  • 16 to 20328 (19%)
  • 21 to 25249 (14%)
  • 26 to 35324 (18%)
  • 36 to 45242 (14%)
  • 46 to 55176 (10%)
  • 56 to 65101 (5.7%)
  • 66 to 7584 (4.8%)
  • Over 7573 (4.2%)
  • Not recorded37 (2.1%)

Drivers, passengers and pedestrians

  • Driver or rider1,157 (66%)
  • Passenger406 (23%)
  • Pedestrian196 (11%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the B416

Map of the 25 most recent crashes on the B416

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

  • 25 crashes
  • Fatal
  • Serious
  • Slight

B416 crashes by council area

Collisions on the B416 were recorded in 2 council areas. Buckinghamshire has the most, with 900, followed by Slough (394).

Collisions on the B416 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stBuckinghamshire9001,25421151
2ndSlough394503446

B416 crashes by town

Collisions on the B416 were recorded in 5 towns and built-up areas, led by Slough (388) and Stoke Poges (301).

Recent crashes on the B416

These are the 25 most recent collisions on the B416, from 12 April 2023 to 23 December 2025.

Severity