[OSM-dev] Import a huge amount of GPS data

[deepak karki]

well, I have proposed a GSoC project which includes the functionality of of
all that Martin has mentioned, and much more. This would automatically take
GPS traces and give you a render-able .OSM data file. The project would be
capable of doing much more than just this (it takes care of cancelling
useless data, mathematically called noise).
So if i get to work on this project this summer, it should take care of
your needs, Jingmin Chen.


On Thu, May 23, 2013 at 6:58 PM, Martin Koppenhoefer <dieterdreist at gmail.com
> wrote:

>
> 2013/5/23 Jingmin Chen <jingmin.chen at epfl.ch>
>
>> Dear all,
>>
>> I currently have access to 2 years, 20,000 taxi vehicles GPS trace (30sec
>> interval) of a large city in China. The OSM data quality of that city is
>> really bad. But uploading the raw GPS trace might have legal issues. Is it
>> possible to process the data  to roads before I upload to OSM? Thank you
>> very much for any suggestion.
>>
>
>
>
> Did you have a look at some examples whether this is useful data
> (precision wise and because of the relatively low frequency)? I am not
> aware of the average traffic speed in this town, but in 30 seconds in many
> cities you could move quite "far". Another potential issue, which mappers
> would have to keep in mind when deriving data from these traces, is that
> taxis often have special traffic rules, so it is not given that any car
> could take the same route than a taxi could. And lastly, there might be
> legal issues (AFAIK mapping or registering GPS-traces is forbidden in
> China, at least if you intend to publish them in a foreign country, not
> sure whether you are operating from inside China or from abroad).
>
> cheers,
> Martin
>
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