[OSM-dev] Data source for robot

Frederik Ramm frederik at remote.org
Tue Oct 12 06:58:32 BST 2010


Peter Budny wrote:
> I'm building a robot as a school project that will use data from TIGER
> imports and automatically create route relations for US state roads.

My advice is not to do it; if it can be done automatically, route 
relations are not required, and many in our community view bots as bad. 
It is likely that the use of bots will become rather heavily regulated 
in the future.

> * Local db?  I tried importing planet.osm but it's too big and takes too
>   long.  Even if I trim it to just US, my machine isn't all that
>   powerful, and I still don't know if I'll have enough disk.

Your best option is to write something that doesn't import planet.osm 
but parses and processes it. Depending on what you want to do you may 
have to parse it twice or even more often. This will take long - a few 
hours each pass - but can probably be done with little memory 
consumption. It is not unlikely that you will only have to look at the 
ways so you can basically skip the first 70% of the file...

For development of course, you will want to create a very small extract 
with something like osmosis first.


Frederik Ramm  ##  eMail frederik at remote.org  ##  N49°00'09" E008°23'33"

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