[OSM-talk] urban surveying speed - can it be estimated as population per hour?

[Florian Loitsch]

On Wednesday 06 June 2007 23:29:03 Peter Miller wrote:
> What productivity do you think can be achieved when surveying an urban
> area? ie, if you know the population of a place can you then  estimate how
> many hours will be required to completely map it?
very difficult to estimate. We have satellite photos here which speeds up 
mapping (and precision). Depending on the city mapping is faster or slower: a 
grid-like city (US-style cities) are extremely fast. Urban areas quite slow. 
Then there are round-abouts. They take (IMHO) most of the time...
Finally I would say that getting the information in the first place can be 
difficult (ie finding road-signs...). Some cities here have larger signs, 
others have smaller. Some cities distribute more ....
Also the fact if a city has hills or not makes a difference (at least, when 
you map using your bike).
I think our small city/town here (Sophia Antipolis) can be mapped in ~40hours.

// florian
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> Personally I have been surprised at the speed that can be achieved but
> don't really have a number yet.
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> Regards,
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> Peter