> > In my experience, railway data in TIGER is much less likely to be up > to date than road data, presumably because census workers need to visit > people that live along roads, but railways are just convenient reference > points. There are railroad rights-of-way in Maryland that were > abandoned in the 1970s, complete with pulling up the rails, but were > still listed as active in TIGER. >
The problem is compounded by the fact that railway companies treat their data as proprietary. Census frequently has to resort to secondary sources for accurate and up-to-date rail data. Sometimes they rely on Dept of Transportation for this data, but there is often a lag and differing views depending on mission as to what constitutes 'active', 'abandoned', 'ownership', etc. -- SEJ -- twitter: @geomantic -- skype: sejohnson8 "Common sense is the collection of prejudices acquired by age eighteen." -- Einstein > _______________________________________________ > Talk-us mailing list > Talk-us@openstreetmap.org > http://lists.openstreetmap.org/listinfo/talk-us >
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