[OSM-talk] Road Length Statistics by county

[Andy Robinson]

Peter Miller wrote:
>Sent: 09 June 2007 2:22 PM
>To: talk at openstreetmap.org
>Subject: [OSM-talk] Road Length Statistics by county
>
>I notice that the Office of National Statistics publishes a document
>detailing the total mileage of roads in each county in the UK.
>
>http://www.statistics.gov.uk/STATBASE/Source.asp?vlnk=1255&More=Y.
>
>This document is evidently only available on paper, but the data clearly
>exists and if we produced our own statistics from OSM data on a county by
>county basis it would be possible to compare this with the official
>figures. To achieve this we would need accurate county boundaries. Is this
>available from OSM or from some creative commons source? If not then a UK
>university would certainly have access to the right data and also the
>ability to do the stats for us. I don't believe that that could possibly
>create IPR issues.
>
>It might also be useful to be able to create an index of road/street names
>for all the named roads within a defined area (a county / borough etc).
>This could be used to firstly pick up typos, and then to manually cross
>reference with a commercial data source. One would of course then need to
>re-survey the streets in question to ensure that the differences were
>indeed our problem and what we should have on our maps.
>
>Would it also be usefully to create a list of road 'ref's' in a county,
>starting with Motorways, 'A' roads, then 'B' roads and their length within
>each county? This would again pick up typos, missing references and also
>give a measure of completeness when compared to lists from other sources.
>

The county of Rutland does have a complete boundary. We did that as part of
the Rutland weekend. The Isle of Wight of course also as the boundary of its
coastline. Perhaps these areas could be used as a comparative trial.

Cheers

Andy

Andy Robinson
Andy_J_Robinson at blueyonder.co.uk