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CrashStats

B2173 accidents: crash map and statistics

Police recorded 768 collisions on the B2173 from 1979 to 2025, with 1,004 casualties. Of those crashes, 11 were fatal and 156 serious, and 12 people were killed.

In 2025 there were 11 collisions on the B2173, up 10% from 10 in 2024, with 15 casualties.

Collisions since 1979
768
1,392nd highest of 4,923 roads
Casualties
1,004
1.31 per collision
Fatal collisions
11
12 people killed
Serious collisions
156
173 seriously injured
Collisions in 2025
11
Up 10% on 2024
Casualties in 2025
15
Up 25% on 2024

Crash severity on the B2173

On the B2173, 1.4% of collisions were fatal and 20% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal111.4%
  • Serious15620%
  • Slight60178%

Where the B2173 ranks among 4,923 roads

Most collisions
1,392nd
Most casualties
1,436th
Most fatal collisions
1,595th
Most serious collisions
1,331st

B2173 accidents by year

Collisions on the B2173 peaked at 27 in 1990 and were down to 11 in 2025.

Collisions and casualties on the B2173, 1979 to 2025

  • Collisions
  • Collisions in 2025: 11
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
20251115
20241012
20231215
20221933
20211621
20201925
2019911
20181623
20171216
20161825
20152232
20141919
20131112
20121618
20111518
20101421
200989
200858
20071215
20061622
20051318
20041520
2003814
20021823
20011215
20001621
19991521
19981922
19971722
19962327
19951315
19942226
19932638
19922536
19912638
19902741
19892428
19881317
198789
19862028
19851414
19841821
19831315
19822033
19812327
19802224
19791821

When crashes happen on the B2173

Wednesday has the most collisions on the B2173 (136), and 3pm to 6pm is the busiest time of day (186).

Collisions by day of the week

  • Monday91 (12%)
  • Tuesday113 (15%)
  • Wednesday136 (18%)
  • Thursday129 (17%)
  • Friday128 (17%)
  • Saturday97 (13%)
  • Sunday74 (9.6%)

Collisions by time of day

  • Midnight to 3am22 (2.9%)
  • 3am to 6am12 (1.6%)
  • 6am to 9am102 (13%)
  • 9am to noon106 (14%)
  • Noon to 3pm134 (17%)
  • 3pm to 6pm186 (24%)
  • 6pm to 9pm143 (19%)
  • 9pm to midnight63 (8.2%)

Collisions by month

  • January71 (9.2%)
  • February61 (7.9%)
  • March60 (7.8%)
  • April51 (6.6%)
  • May62 (8.1%)
  • June61 (7.9%)
  • July69 (9%)
  • August45 (5.9%)
  • September53 (6.9%)
  • October87 (11%)
  • November76 (9.9%)
  • December72 (9.4%)

Light conditions at the time

  • Daylight556 (72%)
  • Dark, street lights lit190 (25%)
  • Dark, street lights unlit10 (1.3%)
  • Dark, lighting unknown8 (1%)
  • Dark, no street lighting4 (0.5%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in B2173 crashes

On the B2173, 60% of collisions happened where the speed limit was 30 mph and 70% on a dry road surface.

Speed limit at the scene

  • 20 mph1 (0.1%)
  • 30 mph458 (60%)
  • 40 mph265 (35%)
  • 50 mph24 (3.1%)
  • 60 mph17 (2.2%)
  • 70 mph3 (0.4%)

Weather at the time

  • Fine, no high winds602 (78%)
  • Raining, no high winds117 (15%)
  • Raining with high winds6 (0.8%)
  • Snowing, no high winds5 (0.7%)
  • Other23 (3%)
  • Not recorded15 (2%)

Road surface

  • Dry535 (70%)
  • Wet or damp211 (27%)
  • Frost or ice19 (2.5%)
  • Snow1 (0.1%)
  • Not recorded2 (0.3%)

Type of road

  • Single carriageway682 (89%)
  • Roundabout58 (7.6%)
  • Dual carriageway16 (2.1%)
  • One way street or slip road9 (1.2%)
  • Not recorded3 (0.4%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in B2173 crashes

Car occupants make up 57% of the people killed or injured on the B2173, followed by motorcyclists (16%).

Casualties by road user

  • Car occupant573 (57%)
  • Motorcyclist162 (16%)
  • Pedestrian152 (15%)
  • Cyclist81 (8.1%)
  • Van occupant18 (1.8%)
  • Bus or coach occupant9 (0.9%)
  • Other8 (0.8%)
  • Not recorded1 (0.1%)

Vehicles involved

  • Car1,070 (74%)
  • Motorcycle162 (11%)
  • Pedal cycle86 (6%)
  • Van or goods vehicle up to 3.5 tonnes72 (5%)
  • Goods vehicle over 3.5 tonnes20 (1.4%)
  • Bus or coach17 (1.2%)
  • Taxi or private hire car7 (0.5%)
  • Other7 (0.5%)

Casualties by age

  • 0 to 517 (1.7%)
  • 6 to 1038 (3.8%)
  • 11 to 1564 (6.4%)
  • 16 to 20188 (19%)
  • 21 to 25104 (10%)
  • 26 to 35182 (18%)
  • 36 to 45140 (14%)
  • 46 to 5597 (9.7%)
  • 56 to 6560 (6%)
  • 66 to 7552 (5.2%)
  • Over 7539 (3.9%)
  • Not recorded23 (2.3%)

Drivers, passengers and pedestrians

  • Driver or rider613 (61%)
  • Passenger239 (24%)
  • Pedestrian152 (15%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the B2173

Map of the 25 most recent crashes on the B2173

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

  • 25 crashes
  • Fatal
  • Serious
  • Slight

B2173 crashes by council area

Collisions on the B2173 were recorded in 3 council areas. Sevenoaks has the most, with 631, followed by Bexley (130) and Bromley (6).

Collisions on the B2173 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stSevenoaks6318147129
2ndBexley130181427
3rdBromley6800

B2173 crashes by town

Collisions on the B2173 were recorded in 2 towns and built-up areas, led by Swanley (637) and Bexley (36).

Recent crashes on the B2173

These are the 25 most recent collisions on the B2173, from 11 September 2023 to 5 December 2025.

Severity