Road camera directory
Speed Cameras on the A4178
2
Total Cameras
1
Speed Limits
1
Counties
1
Cities
17,202
Peak AADT
18
Collisions (2024)
Interactive camera map
The map loads when it enters view.
Camera Types
Speed Limits
All Cameras on the A4178
Camera directory loaded with 2 records.
| Type | Speed Limit | Road | Location | Daily Traffic | Crashes (500m) |
|---|---|---|---|---|---|
| Fixed | — | A4178 | Watford | 14,646 | 10 |
| Fixed | 30 mph | A4178 | Watford | 17,202 | 8 |
Road Safety on the A4178
Unique collisions within 500m of mapped speed cameras on the A4178 (DfT STATS19, 2024).
Collision context
Severity near mapped cameras
0
Fatal · 0%
4
Serious · 22%
14
Slight · 78%
18
unique collisions within 500m
22
casualties · 1.2 per collision
What the figures say
22% of matched collisions were fatal or serious in the 2024 STATS19 dataset.
17,202 vehicles per day at the busiest matched count point across 2 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.
A4178 · DfT STATS19 2024 and Road Traffic Statistics AADF 2024.
Counties Along the A4178
Frequently Asked Questions
How many speed cameras are on the A4178?
This directory currently maps 2 speed cameras on the A4178, including 2 fixed and 0 average-speed records.
How many crashes occur near speed cameras on the A4178?
In 2024, DfT STATS19 recorded 18 unique collisions within 500m of mapped camera locations on the A4178, including 0 fatal and 4 serious collisions.
How busy is the A4178?
The busiest section of the A4178 near a speed camera carries approximately 17,202 vehicles per day. Source: DfT Road Traffic Statistics.