To answer you're question Frederik, if we take take the total population(36million) and devide it by the average house hold family size(3 to 4) it would give about 9-10 million. Now I know this doesnt factor in not everyone lives in a detached home(apartment) and commercial buildings, so they might balance out. This doesnt also factor in buildings already added in highly populated areas(vancouver, montreal, toronto, ottawa etc)
So a good guess would be less then 10 million and above 5 million. We have less population then the State of California and as buildings correlate with population, it doesnt seem like that much information in the grand scheme of things(entire planet, or a highly populated city in India) On Oct 18, 2017 5:04 PM, "Frederik Ramm" <[email protected]> wrote: > Hi, > > On 10/18/2017 10:00 PM, Stewart C. Russell wrote: > > Hi - just as an initial heads-up, Statistics Canada - effectively, the > > Canadian Federal Government - wishes to have all of Canada's buildings > > on OSM by 2020. > > I'm sure there are many people who wish that some data were in OSM by > some deadline. This doesn't mean that their wishes automatically come > true ;) > > What support (in terms of manpower, money, or other resources) are > Statistics Canada offering in return for their wishes being granted? > > > This will entail major imports of municipal data and > > superhuman efforts on the part of the LWG to keep track of and approve > > all of Canada's many data licences. > > It is good that the web page has some numbers ("It is expected that the > number of buildings that needs to be added is about 10 million"). It > would be greater still if you could work with these numbers a bit and > come up with some estimates: > > * 10 million buildings - what will that do to the current OSM database, > will it grow by 0.01%, 0.1%, or 1% as a result? (At the danger of > sounding greedy - and I think as the OSMF treasurer I have a license to > be - such a figure would allow us to say "hey, adding these 10 million > buildings costs approximately X on the hardware side, would you care to > make a donation?") > > * Do you already have an idea what percentage will come from imports? > > * How can you ensure that you have local (!) people performing the > imports? Can Statistics Canada help train people and hold events in > areas where the OSM community is thin on the ground? "Building Canada > 2020" should be a good enough battle cry to rally interested parties > even if they're not already in OSM. > > * How much work will be required to do the necessary quality checks on > the imports (compare to existing data, aerial imagery etc.)? From my own > experience I'd guess I can perhaps handle 200 buildings an hour which > would extrapolate to 50,000 person-hours but it would be great if you > could come up with an idea yourself. Are you looking for 5 people > putting in 10,000 hours each, or 5000 people putting in 10 hours each? > > I liked that you wrote, > > "Although it may be reasonably expected that the bulk of baseline data > will be provided by existing administrative open data, it is recognized > that all of these methods are equally important to achieve the objective > of Building Canada 2020." > > Bye > Frederik > > -- > Frederik Ramm ## eMail [email protected] ## N49°00'09" E008°23'33" > > _______________________________________________ > Imports mailing list > [email protected] > https://lists.openstreetmap.org/listinfo/imports >
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