I think road law is actually a situation where the loophole test would uniquely applicable because you are effectively told what you can and can't do in every specific situation. For example, there is no ambiguity over what 20mph means (as opposed to what something like "dangerous" or "threatening" means). The fact that the sign is bent (as long as it's still legible) does not suggest that it means anything other than "your speed must not exceed 20mph".
Without T bars yellow lines are just a bit of paint on the road. The law also serves to make sure councils reinstate yellow lines and other road markings after carriageway maintenance work.
With regard to speed limits, actually, the signage for that is also strictly regulated. 30 mph areas must have signs at each end, pavements and lamp posts at a particular distance. 40, 50 and 60 limits (not NSL) must have repeater signs at particular intervals, etc, or the road becomes an NSL.
Without T bars yellow lines are just a bit of paint on the road. The law also serves to make sure councils reinstate yellow lines and other road markings after carriageway maintenance work.
With regard to speed limits, actually, the signage for that is also strictly regulated. 30 mph areas must have signs at each end, pavements and lamp posts at a particular distance. 40, 50 and 60 limits (not NSL) must have repeater signs at particular intervals, etc, or the road becomes an NSL.