Hi Kleptog, There was some useful data in the AND dataset for China, so, I'm hoping we can push forward and get some of it used... As you did most of the work on processing the India and China data, I'm coming back to you for help :)
My thoughts back in December are below... Place information has been imported from GNS now... Would it be possible to get just province boundaries, with names and water extracted? Perhaps into separate files as the water will at least need to be blended in with PGS around the coastal areas and the province boundaries had the issue with borders around 1000s of islands, plus it would be good to add in the Chinese for at least the province place tags, all of which would be good to clear up prior to an import... Thanks, d --- snip --- So, in summary, the data we have is (with my opinions on it below)... Places, cities plus some towns and villages where they are in the road network. - Possibly worthwhile importing, but probably best to merge in the GNS data, or, only use the GNS data... The fact that the places are nodes in the road network is probably an issue too... Place areas, the borders around an the urban area. - Looks nice, but, probably never very accurate and now, it is very out of date... Realistically, probably not worth importing... Airports - Probably not worth importing, the locations of the ones I've checked are not overly accurate, some are way out, (10+km) and we already have airport data. There are 'service roads' connecting the nearest road to the airport in a straight line, these are definitely not worth importing I would say... Water - Worthwhile importing, but, needs some more fixing up, and will need some careful merging with existing, better PGS data near the coast at least... Coastline - Not worth importing, the PGS data seems more recent, higher resolution and a lot has already been imported and has had a lot of time spent on tidying up... Administrative Boundaries - Definitely worthwhile importing, will need some tidy up along the coasts, especially where there are islands, and adding more tagging data, like the name in Chinese would be useful... This would probably be a bit of data that would benefit from being lockable... Roads - I'm still not convinced by these... The fact that they seem obviously very out of date, have a low resolution, lack names or references and the fact that they in many cases just seem to join together in a city point makes me think that they don't really add much... Obviously they would make it look like we had data, but, I don't think, they really give us anything approaching usable data... As it stands, I'd say they are not worth importing... Potentially splitting the road data out and breaking it down based on provinces and leaving those files somewhere accessible would be useful, maybe at some point the the future, someone in a remote location may find that the data is useful for their area, but, even if an area hasn't had any road improvements in the past 10-20 years, pretty unlikely for major roads even in remote locations, I'm not convinced the data would even give much value there... As I mentioned in IRC, our data would probably be a more accurate reflection of what's there if we imported all the GNS places, and joined all large cities together with straight lines tagged as motorway, drop a bit of terrain information into the process to make some curves and it would probably be a lot more accurate, could then even join up smaller cities with non-motorways... I'm not suggesting we do this, I'm just trying to explain my feel on the data that if all we want is less white space, making data up using some form of guestimation as to where roads would probably be built would probably give us something more useful/accurate than this road data... --- snip ---
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