I suggest that the tags for highway=trunk,primary,secondary,tertiary,unclassified be considered as a function of traffic patterns and not of DOTC designation nor physical appearance or condition.
These values should also be considered relative to local traffic patterns. This means that levels will be different in an urban and rural setting: a trunk in Metro Manila does not have to be equivalent in function to a trunk in Nueva Vizcaya. Here are some descriptive interpretations I might suggest (subject to discussion): trunk (rural) : long-distance route to traverse across provinces primary (rural) : mid-distance route to travel between towns in a province secondary (rural) : major streets within rural towns tertiary (rural) : major streets within areas of rural towns unclassified,residential (rural) : other roads in rural towns trunk (urban) : long-distance route across the metropolis primary (urban) : major road within a metropolitan city secondary (urban) : mid-level road within a metropolitan city tertiary (urban) : minor road in a metropolitan city unclassified,residential (urban) : other roads in metropolitan cities I'll admit that I have no fixed idea as to how to tag roads such that relative functional importance within Metro Manila (Cebu, Davao) is consistent when you get outside Metro Manila (Cebu, Davao). The problem is that in urban areas, the road density is so high such that we need to differentiate the roads a lot, whereas in rural areas, the density is low. For Metro Manila, EDSA and *parts* of C-5 are definitely trunk. Commonwealth, Quirino (QC) and McArthur Highway are arguably trunk. Quezon Avenue-Espana, Aurora-Marcos Highway, Ortigas-Ortigas Ext., Quirino (Manila), and Roxas Blvd are not so clear. What do you guys think? On Mon, Aug 3, 2009 at 10:22 AM, <anthony.bal...@neraphil.com.ph> wrote: > > Pardon my ignorance, but how do you classify road types? > > In the case of Mindanao Ave compared to Quirino Highway, apparently the > former is a wider road so i reclassified the. > > > Anthony > > > > > From: maning sambale <emmanuel.samb...@gmail.com> To: > talk-ph@openstreetmap.org Date: 08/03/2009 10:06 AM Subject: [talk-ph] > changes of raod types > ------------------------------ > > > > I'm not objecting but I'm somehow curious about recent > reclassifications of several major roads lately: > > 1. Portions of Commonwealth from trunk to primary: > > http://www.openstreetmap.org/?lat=14.66209&lon=121.06976&zoom=15&layers=B000FTF > > 2. Mindanao Ave from primary to trunk: > > http://www.openstreetmap.org/?lat=14.67085&lon=121.03234&zoom=15&layers=B000FTF > > 3. Some parts of Quirino are either primary or trunk: > > http://www.openstreetmap.org/?lat=14.69974&lon=121.03273&zoom=15&layers=B000FTF > > 4. MacArthur Hiway from primary to trunk: > > http://www.openstreetmap.org/?lat=14.6755&lon=120.982&zoom=15&layers=B000FTF > > If we follow this trend, then I think Roxas Blvd should also be trunk as > well: > > http://www.openstreetmap.org/?lat=14.53551&lon=121.00028&zoom=15&layers=B000FTF > > Which means Metro Manila roads will be a whole lot greener (in the map > at least). > > PS. Apologies for non-manila members > > > > -- > cheers, > maning > ------------------------------------------------------ > "Freedom is still the most radical idea of all" -N.Branden > wiki: http://esambale.wikispaces.com/ > blog: http://epsg4253.wordpress.com/ > ------------------------------------------------------ > > _______________________________________________ > talk-ph mailing list > talk-ph@openstreetmap.org > http://lists.openstreetmap.org/listinfo/talk-ph > > > > _______________________________________________ > talk-ph mailing list > talk-ph@openstreetmap.org > http://lists.openstreetmap.org/listinfo/talk-ph > > -- http://vaes9.codedgraphic.com
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