Road camera directory
Speed Cameras on the A40
11
Total Cameras
3
Speed Limits
3
Counties
4
Cities
110,407
Peak AADT
35
Collisions (2024)
Interactive camera map
The map loads when it enters view.
Camera Types
Speed Limits
All Cameras on the A40
Camera directory loaded with 11 records.
| Type | Speed Limit | Road | Location | Daily Traffic | Crashes (500m) |
|---|---|---|---|---|---|
| Fixed | — | A40 | Oxford | 26,663 | 9 |
| Fixed | — | A40 | Harrow | 104,548 | 2 |
| Fixed | — | A40 | Oxford | 35,408 | 1 |
| Fixed | 40 mph | A40 | Harrow | 110,407 | 4 |
| Fixed | 50 mph | A40 | Harrow | 104,235 | 7 |
| Fixed | 40 mph | A40 | Harrow | 110,407 | 4 |
| Fixed | 50 mph | A40 | Slough | 18,679 | 1 |
| Fixed | — | A40 | Oxford | 21,412 | 2 |
| Fixed | 30 mph | A40 | High Wycombe | 10,127 | 6 |
| Fixed | 30 mph | A40 | High Wycombe | 23,631 | 3 |
| Fixed | 50 mph | A40 | Harrow | 104,235 | 4 |
Road Safety on the A40
Unique collisions within 500m of mapped speed cameras on the A40 (DfT STATS19, 2024).
Collision context
Severity near mapped cameras
0
Fatal · 0%
11
Serious · 31%
24
Slight · 69%
35
unique collisions within 500m
47
casualties · 1.3 per collision
What the figures say
31% of matched collisions were fatal or serious in the 2024 STATS19 dataset.
110,407 vehicles per day at the busiest matched count point across 11 matched count locations.
These are collisions near mapped camera records, not collisions caused or prevented by cameras. Coverage depends on available camera, traffic and STATS19 coordinates.
A40 · DfT STATS19 2024 and Road Traffic Statistics AADF 2024.
Counties Along the A40
Frequently Asked Questions
How many speed cameras are on the A40?
This directory currently maps 11 speed cameras on the A40, including 11 fixed and 0 average-speed records.
How many crashes occur near speed cameras on the A40?
In 2024, DfT STATS19 recorded 35 unique collisions within 500m of mapped camera locations on the A40, including 0 fatal and 11 serious collisions.
How busy is the A40?
The busiest section of the A40 near a speed camera carries approximately 110,407 vehicles per day. Source: DfT Road Traffic Statistics.