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CrashStats

A4165 accidents: crash map and statistics

Police recorded 1,488 collisions on the A4165 from 1979 to 2025, with 1,714 casualties. Of those crashes, 16 were fatal and 267 serious, and 16 people were killed.

In 2025 there were 13 collisions on the A4165, level with 2024, with 13 casualties.

Collisions since 1979
1,488
744th highest of 4,923 roads
Casualties
1,714
1.15 per collision
Fatal collisions
16
16 people killed
Serious collisions
267
282 seriously injured
Collisions in 2025
13
Level with 2024
Casualties in 2025
13
Down 13% on 2024

Crash severity on the A4165

On the A4165, 1.1% of collisions were fatal and 18% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal161.1%
  • Serious26718%
  • Slight1,20581%

Where the A4165 ranks among 4,923 roads

Most collisions
744th
Most casualties
868th
Most fatal collisions
1,181st
Most serious collisions
806th

A4165 accidents by year

Collisions on the A4165 peaked at 49 in 1997 and were down to 13 in 2025.

Collisions and casualties on the A4165, 1979 to 2025

  • Collisions
  • Collisions in 2025: 13
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
20251313
20241315
20231111
20221518
202199
202088
20192020
20181718
20172627
20161920
20151920
20142832
20131919
20122942
20112326
20102330
20093643
20082727
20073949
20063646
20053446
20042326
20033446
20023844
20013944
20004555
19993439
19984355
19974955
19964252
19953942
19944349
19934251
19924551
19913034
19903233
19893438
19882929
19874243
19864346
19854345
19844650
19834049
19824651
19814148
19803643
19794657

When crashes happen on the A4165

Wednesday has the most collisions on the A4165 (276), and 3pm to 6pm is the busiest time of day (371).

Collisions by day of the week

  • Monday225 (15%)
  • Tuesday196 (13%)
  • Wednesday276 (19%)
  • Thursday258 (17%)
  • Friday270 (18%)
  • Saturday165 (11%)
  • Sunday98 (6.6%)

Collisions by time of day

  • Midnight to 3am27 (1.8%)
  • 3am to 6am7 (0.5%)
  • 6am to 9am238 (16%)
  • 9am to noon253 (17%)
  • Noon to 3pm290 (19%)
  • 3pm to 6pm371 (25%)
  • 6pm to 9pm188 (13%)
  • 9pm to midnight114 (7.7%)

Collisions by month

  • January122 (8.2%)
  • February109 (7.3%)
  • March132 (8.9%)
  • April91 (6.1%)
  • May141 (9.5%)
  • June144 (9.7%)
  • July126 (8.5%)
  • August98 (6.6%)
  • September107 (7.2%)
  • October145 (9.7%)
  • November150 (10%)
  • December123 (8.3%)

Light conditions at the time

  • Daylight1,128 (76%)
  • Dark, street lights lit340 (23%)
  • Dark, lighting unknown10 (0.7%)
  • Dark, street lights unlit7 (0.5%)
  • Not recorded3 (0.2%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in A4165 crashes

On the A4165, 89% of collisions happened where the speed limit was 30 mph and 72% on a dry road surface.

Speed limit at the scene

  • 20 mph77 (5.2%)
  • 30 mph1,318 (89%)
  • 40 mph65 (4.4%)
  • 50 mph1 (0.1%)
  • 60 mph26 (1.7%)
  • 70 mph1 (0.1%)

Weather at the time

  • Fine, no high winds1,226 (82%)
  • Raining, no high winds173 (12%)
  • Raining with high winds16 (1.1%)
  • Fine with high winds14 (0.9%)
  • Other45 (3%)
  • Not recorded14 (0.9%)

Road surface

  • Dry1,071 (72%)
  • Wet or damp394 (26%)
  • Frost or ice9 (0.6%)
  • Snow3 (0.2%)
  • Flood over 3cm deep2 (0.1%)
  • Not recorded9 (0.6%)

Type of road

  • Single carriageway1,422 (96%)
  • Dual carriageway30 (2%)
  • Roundabout21 (1.4%)
  • One way street or slip road13 (0.9%)
  • Not recorded2 (0.1%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in A4165 crashes

Cyclists make up 36% of the people killed or injured on the A4165, followed by car occupants (23%).

Casualties by road user

  • Cyclist621 (36%)
  • Car occupant394 (23%)
  • Pedestrian279 (16%)
  • Motorcyclist249 (15%)
  • Bus or coach occupant135 (7.9%)
  • Taxi or private hire car occupant17 (1%)
  • Other18 (1.1%)
  • Not recorded1 (0.1%)

Vehicles involved

  • Car1,434 (51%)
  • Pedal cycle653 (23%)
  • Motorcycle279 (9.9%)
  • Bus or coach264 (9.4%)
  • Van or goods vehicle up to 3.5 tonnes88 (3.1%)
  • Taxi or private hire car39 (1.4%)
  • Other46 (1.6%)
  • Not recorded7 (0.2%)

Casualties by age

  • 0 to 518 (1.1%)
  • 6 to 1025 (1.5%)
  • 11 to 1588 (5.1%)
  • 16 to 20302 (18%)
  • 21 to 25265 (15%)
  • 26 to 35316 (18%)
  • 36 to 45187 (11%)
  • 46 to 55181 (11%)
  • 56 to 65114 (6.7%)
  • 66 to 7555 (3.2%)
  • Over 7576 (4.4%)
  • Not recorded87 (5.1%)

Drivers, passengers and pedestrians

  • Driver or rider1,159 (68%)
  • Pedestrian279 (16%)
  • Passenger276 (16%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the A4165

Map of the 25 most recent crashes on the A4165

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

  • 25 crashes
  • Serious
  • Slight

A4165 crashes by council area

Collisions on the A4165 were recorded in 2 council areas. Oxford has the most, with 1,391, followed by Cherwell (95).

Collisions on the A4165 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stOxford1,3911,57614252
2ndCherwell95135215

A4165 crashes by town

Of the 1,488 collisions on the A4165, 1,388 were in the built-up area of Oxford.

Recent crashes on the A4165

These are the 25 most recent collisions on the A4165, from 1 February 2024 to 10 December 2025.

Severity