I found this which I think is important & significant...
In relation to the old law of placing false signs & signals... Which does give the legal basis, even though that law was revoked... IF that law were still to exist... It would include Highways England & local council "connection" to any placement of or exhibit a false sign or signal in relation to "waterways" and any roads that were maintained by the same authority as which maintained a "waterway". So a Barge is a "vessel" as is any "boat" on an inland navigation or waterway...
So if a Vessel was mislead by any Sign or Signal (they have signs similar to road signs) and it was a sign maintained by the local council authority or Highways England because a road was also maintained by them going along it, over it, under it or near it...
Then that council could be responsible for the false sign or signal which might misguide a vessel.
Also... Because we still have the law "cause or permit" a driver to an offence such as dangerous driving or exceed speed limit..
And we have the basis of false signs & signals in old law which at least has been identified & defined in Legal terms, an offence which existed...
As does "causing someone" to an offence..
We can establish.. This is something Definable in law.
And it has cause & effect.
It was or is illegal (crime) - an offence. & quite a serious one.
And We could draw connections to "local authorities or Government Authorities" who placed the signs or signals. Not just some mysterious stranger on a cliff top.. waving a lantern in the dead of night.. who is never found.. Dick Turpins or whoever.
But actually Highway men.
Also.. as illegal signs ARE defined & exist in terms & are an obstruction...
The Offence of placing an obstruction on a railway is at least an offence. And.. by merit of the above information from the 1960 Road Traffic Act..
IF a ROAD were to be maintained by the Railway company.. British Rail or Virgin..
Or if a Railway line had a Railway line that crossed a road and that road or railway was maintained by Highways England... And an Illegal Road sign did effect Traffic in a dangerous way so that any road signage classed as an "obstruction" did effect traffic crossing any railway line..
It would be in law an Obstruction on or effecting a railway line.. and It would be illegal to have placed such signs, even on a road used by cars, because they use & cross part of the Railway line.
And if we could get a prosecution successfully from one of these obstructions which was a illegal road sign, near or effecting a railway crossing (just by being there) doesn't need to be any incident there.. or accident..
We can prove that it is a crime & offence & after that successful charge...
We can therefore establish that.. following this principle.. It must be that any facts or circumstances effecting traffic & cars in other wider circumstances that just crossing a railway line.. Must also be a danger & a crime as well.
Because it is the same cause & effect.
Thus... Without any car accident, or speeding offence... Just by placement of illegal signs (an obstruction) we can charge those who did exhibit the false (non prescription) signs & signals. For it is criminal.