"Clive George" wrote in message
...
"MartinM" wrote in message
...

the (ahem) last time I looked at the HC it categorised signs by shape
and
colour:

Red triangle- Warning
Red circle Prohibition
Blue circle Compulsion

and blue circle bike lanes were compulsory (but that was along time ago)

Compulsory for what? If bike lane 'X' is compulsory, who must use it?

There is only such compulsion, and that is on paths with a cyclist bit and
a
pedestrian bit - cyclists must use the cyclist bit. This sign only covers
that path - if they're somewhere else (eg the road next to it), the
compulsion doesn't apply.

Yes just checked the HC website, an oblong sign means recommended bike route
like the NCN even though it may be on a public road; the blue circle means
bikes only (but not compulsory). But there used to be compulsory cycle
/moped lanes alongside some A roads.