1. Traffic lights ahead
“Entirely unnecessary if the lights can clearly be seen.”

2. Not in use
If an electronic sign is “not displaying a message temporarily then it is clearly not in use”.

3. Traffic camera enforcement
Put up before box speed cameras to nudge motorists into obeying the limit but not needed to penalise drivers. Motorists should be able to find the location of cameras via a national database, negating the need for thousands of signs.

4. No stopping (Clearway)
“These signs are outdated and it is questionable how widely they are understood.”

5. Cycle warning
The “vast majority . . . serve no useful purpose” because cyclists are a common sight on roads and drivers should always be aware of them. The most notable exception is “where a cycle track crosses a high speed road”.

6. Brown tourist signs
“Perfectly acceptable so long as they are not allowed to be used as advertising space for local hospitality businesses that hold no real claim to be tourist sites”. Councils should also be careful to ensure they remain relevant: “16th century inn” is not “in itself a useful piece of information if the driver has no idea what it actually refers to.”

7. Housing development
Put up by developers. Can be useful to residents and delivery companies but are often left beyond their six-month limit. Should be “much stricter limits on the length of time they can be left in place”.

8. Skid-risk
These signs are only meant to be temporary. If a road is judged to be a skid risk, it is because additional maintenance work is required to the surface. The report says that once remedial work has been completed the “sign is no longer needed and should be removed”.

9. Temporary signs
Warnings of some kind of new road layout ahead are “entirely superfluous as any driver who regularly uses the road will have been well aware of changes being made as they will have witnessed the road works that preceded it”. Too many temporary signs are left in place permanently.