[OSM-legal-talk] OSM based GPS navigations and ODbl license of OSM data

Karel Charvat Charvat.K at seznam.cz
Wed Jan 7 07:36:17 UTC 2015

If you are using OSM data for routing, you must do some modifications to 
obtain routable network with correct topology. I think creating this 
routable network from original OSM data means creating Derivative Database, 
even if you are not adding any new information into data set. Routable 
network based on OSM data contains much more road segments than original 
data set.

---------- Původní zpráva ----------

Od: Paul Norman <penorman at mac.com>

Komu: legal-talk at openstreetmap.org

Datum: 6. 1. 2015 20:42:06

Předmět: Re: [OSM-legal-talk] OSM based GPS navigations and ODbl license of 
OSM data

"On 1/6/2015 11:01 AM, Karel Charvat wrote:

> Are the developers of Be-On-Road fullfilling their ODbl license 

> obligations by providing their data only in files with unknown format?

It depends. If they are not adding any data, they can simply point to 

the source (planet.osm.org).

If they are adding data, they need to provide the entire derivative 

database (4.6.a) or an alteration file (4.6.b) with the new contents. 

Based on my experience, I would be surprised if they had non-OSM data in 

a derivative database. Far more common is to layer OSM data with other data.

It would be nice if be-on-the-road documented their format and provided 

open-source tools to use it, but this is not a legal requirement. The 

ODbL is concerned with preserving the openness of the data, not of the 

data format.

They of course need to meet the other obligations of the ODbL (e.g. 



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