It would be interesting to see the same charts taking into account the
nonames, to take into account the places that have been traced but not
yet named.
Shaun
On 10 Aug 2009, at 23:35, Peter Reed wrote:
I have now fixed the problem I was having with measuring the length
of roads in Buckinghamshire, and I have uploaded a new map of UK
road coverage here - http://www.reedhome.org.uk/Documents/OSMCover.png
FWIW here is a close up view of London as well -
http://www.reedhome.org.uk/Documents/OSMLondon.png
For anyone who hasn’t seen the previous conversations, these compare
the road lengths reported by the Department for Transport against
the length of roads that have been plotted on OSM.
In other words in Cornwall, for example, the DfT reckons that there
are about 7,500km of road, and about 3,500 have been plotted on OSM
leaving about 4,000km to be added to OSM.
In Reading, on the other hand, the DfT reckons there are just under
400km of road, but just over 400km have been plotted on OSM, leaving
about 5km for the DfT to build.
I am still finding and removing glitches, but as things stand the
highest levels of coverage (on these measures) seem to be in a
number of London boroughs, the Isle of Wight, Birmingham, Reading
and Portsmouth.
I’ll try to find time tomorrow to upload a summary of the numbers
themselves for anyone who is interested.
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