Hi Totor, Welcome to the family. :-)
I've done a bit of mapping in Cebu over the last year or so, but not much actually in the city. I did a lot up north, on a holiday to Malapascua island (which you should visit by the way - a lovely beach getaway), and then filled in a few of the other roads from an out-of-copyright map Maning slipped me. As the map at the time was virgin territory (well compared to Manila anyway), then I was focusing mainly on getting the roads in and relocating the towns and villages, which were often several KM out of place. I didn't pay much attention to the types of roads, figuring someone like yourself would be along sooner or later to tidy up. So anyway, please feel free to go ahead and re-classify roads however it makes sense to you. Some of the roads I put in from the out of copyright map need to be verified. I think these are tagged with source=50k map or something like that, and they'll have no names. But once again I felt that putting any roads in at all is better than no roads, as they add a framework that people can add to. As the satellite imagery in Yahoo is rather poor for Cebu Island, then the framework of roads and GPS traces is pretty much all you have to work with for now. As for classifying the roads, I don't think the classifications as envisaged by the OSM originators in UK have much relevance to the Philippines (what's a trunk road for example here?), but I figure the most useful thing we can do is to classify in terms of importance, which gives a sense of the road network. Clearly there are some roads in the Philippines which carry a lot of traffic, and are very important, but which would probably only be classified as secondary or tertiary roads in Europe. So I tend to think in terms of ... Primary roads carry the most traffic, followed by secondary, followed by tertiary. That kind of thing ... I'm probably going to get some reaction from the forum for this ... like all families we have our disagreements! But when I'm mapping I tend to think in terms of "What is going to be most useful to people using the map" rather than "How exactly can I follow the mapping rules." In the case of Cebu right now, my feeling would be to get as many roads and GPS traces in there first, and then figure out the minute details of classification later. Once the road framework is in there, then people without GPS units can go ahead and fill in all the buildings and Points of Interest. My 2 centavos only ... Jim Totor Osm wrote, On Friday, 29 May, 2009 09:28 PM: > When I'm back, I'd need some clarifications, or guidelines, on how to > classify the roads here in Cebu. I have difficulties in relating the > guidelines about the tags to the reality. > > Right now, there is primary roads, and residential roads mainly. I don't know > how to improve this, since some main large roads (like A.S. Fortuna) don't > even have a dividing line (this means it is 1 lane only ?) but the trafic is > driving on 4 lanes (2 each side)... > > The Cebu North road, really gets narrow at some sections when going south, > and would not be considered a main road abroad in those sections... > > The South (SRP) road is now mapped as a single motorway. It should be 2 one > way roads... 3 lanes each if I remember well. But can it be a motorway road ? > It is the closest to a motorway I ever saw here in Cebu, but I'm not sure > there is a hard shoulder, there are many intersections and traffic lights, > often tricycles also ride there... I guess a trunk road would be more > appropriate. > > Any suggestions how to deal with all this ? -- datalude: information security e: j...@datalude.com Philippines: +63 2 403 1311 / mob: +63 920 912 5830 Hong Kong: +852 9100 7586 w: http://www.datalude.com/ _______________________________________________ talk-ph mailing list talk-ph@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-ph
