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CrashStats

A418 accidents: crash map and statistics

Police recorded 3,362 collisions on the A418 from 1979 to 2025, with 4,823 casualties. Of those crashes, 109 were fatal and 637 serious, and 124 people were killed.

In 2025 there were 24 collisions on the A418, up 26% from 19 in 2024, with 35 casualties.

Collisions since 1979
3,362
336th highest of 4,923 roads
Casualties
4,823
1.43 per collision
Fatal collisions
109
124 people killed
Serious collisions
637
820 seriously injured
Collisions in 2025
24
Up 26% on 2024
Casualties in 2025
35
Up 6% on 2024

Crash severity on the A418

On the A418, 3.2% of collisions were fatal and 19% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal1093.2%
  • Serious63719%
  • Slight2,61678%

Where the A418 ranks among 4,923 roads

Most collisions
336th
Most casualties
319th
Most fatal collisions
187th
Most serious collisions
314th

A418 accidents by year

Collisions on the A418 peaked at 189 in 1979 and were down to 24 in 2025.

Collisions and casualties on the A418, 1979 to 2025

  • Collisions
  • Collisions in 2025: 24
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
20252435
20241933
20233447
20222137
20212836
20202129
20192835
20182941
20173449
20163647
20153748
20142838
20134161
20123860
20114361
20104660
20093758
20085781
20075683
200672100
200567105
20046390
200372103
200277116
200171105
20006486
199991120
199867107
199781134
19966793
199564113
199487133
199374121
199278110
199191138
1990110153
1989115159
1988101146
198780120
1986103126
1985103131
1984130169
1983142205
1982134183
1981144217
1980168238
1979189263

When crashes happen on the A418

Friday has the most collisions on the A418 (597), and 3pm to 6pm is the busiest time of day (799).

Collisions by day of the week

  • Monday467 (14%)
  • Tuesday499 (15%)
  • Wednesday499 (15%)
  • Thursday497 (15%)
  • Friday597 (18%)
  • Saturday456 (14%)
  • Sunday347 (10%)

Collisions by time of day

  • Midnight to 3am110 (3.3%)
  • 3am to 6am57 (1.7%)
  • 6am to 9am537 (16%)
  • 9am to noon456 (14%)
  • Noon to 3pm567 (17%)
  • 3pm to 6pm799 (24%)
  • 6pm to 9pm510 (15%)
  • 9pm to midnight326 (9.7%)

Collisions by month

  • January299 (8.9%)
  • February243 (7.2%)
  • March253 (7.5%)
  • April237 (7%)
  • May281 (8.4%)
  • June265 (7.9%)
  • July269 (8%)
  • August264 (7.9%)
  • September296 (8.8%)
  • October316 (9.4%)
  • November325 (9.7%)
  • December314 (9.3%)

Light conditions at the time

  • Daylight2,390 (71%)
  • Dark, street lights lit498 (15%)
  • Dark, no street lighting435 (13%)
  • Dark, lighting unknown23 (0.7%)
  • Dark, street lights unlit9 (0.3%)
  • Not recorded7 (0.2%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in A418 crashes

On the A418, 46% of collisions happened where the speed limit was 60 mph and 60% on a dry road surface.

Speed limit at the scene

  • 20 mph1 (under 0.1%)
  • 30 mph1,311 (39%)
  • 40 mph329 (9.8%)
  • 50 mph161 (4.8%)
  • 60 mph1,555 (46%)
  • 70 mph5 (0.1%)

Weather at the time

  • Fine, no high winds2,597 (77%)
  • Raining, no high winds472 (14%)
  • Fine with high winds62 (1.8%)
  • Raining with high winds45 (1.3%)
  • Other155 (4.6%)
  • Not recorded31 (0.9%)

Road surface

  • Dry2,015 (60%)
  • Wet or damp1,191 (35%)
  • Frost or ice112 (3.3%)
  • Snow21 (0.6%)
  • Other7 (0.2%)
  • Not recorded16 (0.5%)

Type of road

  • Single carriageway2,858 (85%)
  • Roundabout416 (12%)
  • Dual carriageway65 (1.9%)
  • One way street or slip road18 (0.5%)
  • Not recorded5 (0.1%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in A418 crashes

Car occupants make up 67% of the people killed or injured on the A418, followed by motorcyclists (11%).

Casualties by road user

  • Car occupant3,234 (67%)
  • Motorcyclist530 (11%)
  • Pedestrian372 (7.7%)
  • Cyclist290 (6%)
  • Van occupant170 (3.5%)
  • Goods vehicle occupant (over 3.5 tonnes)96 (2%)
  • Bus or coach occupant59 (1.2%)
  • Other72 (1.5%)

Vehicles involved

  • Car4,939 (73%)
  • Motorcycle546 (8%)
  • Goods vehicle over 3.5 tonnes396 (5.8%)
  • Van or goods vehicle up to 3.5 tonnes372 (5.5%)
  • Pedal cycle300 (4.4%)
  • Bus or coach84 (1.2%)
  • Other146 (2.1%)
  • Not recorded23 (0.3%)

Casualties by age

  • 0 to 596 (2%)
  • 6 to 10113 (2.3%)
  • 11 to 15199 (4.1%)
  • 16 to 20881 (18%)
  • 21 to 25686 (14%)
  • 26 to 35991 (21%)
  • 36 to 45638 (13%)
  • 46 to 55490 (10%)
  • 56 to 65364 (7.5%)
  • 66 to 75179 (3.7%)
  • Over 75115 (2.4%)
  • Not recorded71 (1.5%)

Drivers, passengers and pedestrians

  • Driver or rider3,228 (67%)
  • Passenger1,223 (25%)
  • Pedestrian372 (7.7%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the A418

Map of the 25 most recent crashes on the A418

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

  • 25 crashes
  • Serious
  • Slight

A418 crashes by council area

Collisions on the A418 were recorded in 5 council areas. Buckinghamshire has the most, with 1,978, followed by South Oxfordshire (636) and Central Bedfordshire (598).

Collisions on the A418 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stBuckinghamshire1,9782,84960371
2ndSouth Oxfordshire63694728124
3rdCentral Bedfordshire59882413102
4thBedford144194839
5thLuton3601

A418 crashes by town

Collisions on the A418 were recorded in 9 towns and built-up areas, led by Aylesbury (686) and Leighton Buzzard (288).

Recent crashes on the A418

These are the 25 most recent collisions on the A418, from 29 December 2024 to 4 December 2025.

Severity