In message , at 15:04:59 on
Sun, 20 Feb 2005, Peter Sumner
remarked:
Agree that the highway code can not give full details of all of the
regulations, but it does refer you to them, and in this case it goes
on to clarify the "usually" with the quite explicit:

"The 30 mph limit applies to all traffic on all roads in England and
Wales (only Class C and unclassified roads in Scotland) with street
lighting unless signs show otherwise)"

http://www.highwaycode.gov.uk/09.shtml#103

In that case, the "183m rule" must be embodied in the definition of
"street lighting".

In other words, "street lighting" must be defined as lights at least
every 183m.

Occasional lights, more than 183m apart, cannot therefore constitute
"Street lighting".

Remember, the 183m rule *does* exist. All I'm trying to do above is
square your view that "The Highway Code is infallible", with reality.
--
Roland Perry