Tom Hughes wrote:
On 25/09/09 14:30, Dave F. wrote:
The map he sent is titled as a Definitive Map. It has an OS underlay,
but the information laid on top is compiled from Council gathered info.
eg GPS survey equipment from an independent company employed to produce
the definitive maps.
Do you know for absolute certainty that every single detail was
gathered from first principles like that? If it was then it is a very
unusual bit of local council mapping as they are not generally that
scrupulously careful...
Well... not /every /detail, no, but there was a report in the local
newspaper:
"Two surveyors will be walking virtually every one of the 560 miles of
footpath in the area."
And also in the Council produced pamphlet where two people were shown
holding their very nice big yellow GPS units.
Isn't every council having to do the same to produce their Definitive Maps?
The reason of course is that they have a license to do what they like
with OS data so it largely doesn't matter to them whether they derive
things from it (well at least until they try and overlay that data on
a google map and get nastygrams from the OS).
Tom
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