Speed Cameras on the A4147
3
Total Cameras
2
Speed Limits
1
Counties
1
Cities
17,303
Peak AADT
17
Crashes (2023)
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Camera Types
Fixed: 3
Speed Limits
40 mph
1
70 mph
1
Unknown
1
All Cameras on the A4147
| Type | Speed Limit | Road | Location | Daily Traffic | Crashes (500m) | |
|---|---|---|---|---|---|---|
| Fixed | 40 mph | A4147 | Hemel Hempstead | 17,303 | 12 | backward |
| Fixed | — | A4147 | Hemel Hempstead | 9,704 | 1 | — |
| Fixed | 70 mph | A4147 | Hemel Hempstead | 9,704 | 4 | — |
Road Safety on the A4147
Collisions within 500m of speed cameras on the A4147 (DfT STATS19, 2023).
0
Fatal
4
Serious
13
Slight
24
Casualties
Peak daily traffic on the A4147: 17,303 vehicles/day (DfT AADF).
Counties Along the A4147
Frequently Asked Questions
How many speed cameras are on the A4147?
There are 3 speed cameras on the A4147, including 3 fixed and 0 average speed cameras.
How many crashes occur near speed cameras on the A4147?
In 2023, there were 17 collisions within 500m of speed camera locations on the A4147, including 0 fatal and 4 serious. Source: DfT STATS19.
How busy is the A4147?
The busiest section of the A4147 near a speed camera carries approximately 17,303 vehicles per day. Source: DfT Road Traffic Statistics.