Now that I have been mapping on OSM for more than a year, I have started to get a better appreciation for the perspectives and concepts surrounding the OSM project. I do, however, continue to reflect on the Western bias of the whole project. In my humble opinion this is most clearly seen in the classification of roads.
A quick scan of the little icons that are attached to the roads classifications show roads and highways familiar in developed countries. The Motorway is a divided highway (called “limited access” in Canada), the Trunk Road is a major route, and Primary seems to indicate a fairly significant route. Secondary and Tertiary are easily identifiable in the Western world as smaller paved roads.
But things are not so clear in Africa. Many roads are residential in town; they turn into a track as they go out into the countryside; and eventually become walking paths. In short, they defy a simple classification. As I entered the discussion with others in the OSM community, I was encouraged to think of the the classification based on the size of the communities connected by the road, rather than the size or condition of the road itself. Fair enough. Based on this, I attempted to organize a reasonable interpretation of the roads for Rwanda (see: osm.wiki/WikiProject_Rwanda/Motorways)