Road camera directory
Speed Cameras on the A404
12
Total Cameras
2
Speed Limits
2
Counties
4
Cities
33,188
Peak AADT
72
Collisions (2024)
Interactive camera map
The map loads when it enters view.
Camera Types
Speed Limits
All Cameras on the A404
Camera directory loaded with 12 records.
| Type | Speed Limit | Road | Location | Daily Traffic | Crashes (500m) |
|---|---|---|---|---|---|
| Fixed | — | A404 | Ealing | 11,624 | 24 |
| Fixed | — | A404 | Ealing | 19,592 | 11 |
| Fixed | — | A404 | Harrow | 25,674 | 15 |
| Fixed | 30 mph | A404 | Watford | 13,504 | — |
| Fixed | 30 mph | A404 | High Wycombe | 33,188 | 4 |
| Fixed | 30 mph | A404 | High Wycombe | 13,361 | 1 |
| Fixed | 50 mph | A404 | Ealing | 21,142 | 17 |
| Fixed | 50 mph | A404 | Ealing | 21,142 | 18 |
| Fixed | — | A404 | Harrow | 20,693 | 3 |
| Fixed | — | A404 | Harrow | 20,693 | 3 |
| Fixed | — | A404 | Harrow | 10,511 | 2 |
| Fixed | — | A404 | Harrow | 10,511 | 2 |
Road Safety on the A404
Unique collisions within 500m of mapped speed cameras on the A404 (DfT STATS19, 2024).
Collision context
Severity near mapped cameras
0
Fatal · 0%
14
Serious · 19%
58
Slight · 81%
72
unique collisions within 500m
82
casualties · 1.1 per collision
What the figures say
19% of matched collisions were fatal or serious in the 2024 STATS19 dataset.
33,188 vehicles per day at the busiest matched count point across 12 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.
A404 · DfT STATS19 2024 and Road Traffic Statistics AADF 2024.
Counties Along the A404
Frequently Asked Questions
How many speed cameras are on the A404?
This directory currently maps 12 speed cameras on the A404, including 12 fixed and 0 average-speed records.
How many crashes occur near speed cameras on the A404?
In 2024, DfT STATS19 recorded 72 unique collisions within 500m of mapped camera locations on the A404, including 0 fatal and 14 serious collisions.
How busy is the A404?
The busiest section of the A404 near a speed camera carries approximately 33,188 vehicles per day. Source: DfT Road Traffic Statistics.