[Talk-ca] Canvec attributes (roads)

[Martijn van Exel]

On 09/12/2016 06:50 PM, Stewart C. Russell wrote:
> On 2016-09-12 04:08 PM, Martijn van Exel wrote:
>> Aren't these files grouped by feature type? So if we look at roads we
>> wouldn't also necessarily need to look at land use boundaries etc.?
>
> Canvec - the product supplied by NRCan to the general public - always
> was split by feature type. It's the OSM tiles, of structure decided long
> ago, that lump everything together.
>
> It's also available as effectively seamless FGDBs if you want to avoid
> the cleanup required after using tiled data. The FGDBs retain the
> critically important survey dates and accuracies - so you can easily see
> how much data's 40 years old and has ±75 m positional accuracy.
>

Good to know.
Are any of the transport related datasets that old or that inaccurate?

I created an initial Canvec road network translation file for ogr2osm, 
so you can convert the Canvec shapefiles to OSM format easily (if you 
know how to work ogr2osm - let me know if you need help, but Paul Norman 
is the expert here!)

It is located at 
https://github.com/mvexel/canvec-ogr2osm-translation/blob/master/canvec2016.py 
and I hope for many forks and improvements. Right now it does a basic 
job of translating the road classes to OSM types, and the most obvious 
attributes to the corresponding OSM tags.

Let me know what you all think.

Martijn