[OSGeo-Discuss] Qgis network plugins

[Moritz Lennert]

On 24/09/20 19:59, Nathan D wrote:
> Hello!
> 
> I have a question regarding network plugins for qgis. I am trying to 
> solve a problem regarding gravel trucks and slope, with the idea of 
> saving money on fuel, as a fully loaded gravel truck uses more gas to go 
> up a slope, rather than down. I have managed to get the slope data I 
> needed, and draped it over the road lines, giving me a start and end 
> slope, with a third column for the average of the start and end slope 
> degrees. The problem is this: I can't find a network analysis plugin for 
> qgis of any kind that allows for user defined impedences, allowing me to 
> create a road hierarchy. I know that ArcGIS has that functionality, but 
> I was hoping that QGIS would have something like that, and I am not sure 
> if I can build it.

You can use the GRASS GIS v.net.* modules which are accessible via the 
processing framework's toolbox if GRASS GIS is installed. They allow 
defining a cost column for impedences.

Moritz