On 31 January 2010 23:33, Dave F. <[email protected]> wrote: > This is already being done with rivers although they don't refer to a > common entity (not sure they need to):
Apples and oranges, for those navigating water ways it's important to know river way widths, it's not important to know road way widths as several assumptions can be made based on the type of road, motorways will always be wider than lane ways etc. The same could be said about railways, railways can easily be mapped out for each set of tracks, but the same isn't true for road ways, they are some what more fluid, especially the roadways that have dynamic lane changes based on time of day. > Depends on what you want to use the data for. Remember the data is > different from the different rendered maps. Again, are we trying to make a map look photo realistic? To me a map is a set of abstract ideas that express information about reality that can't be seen from photo imagery. Mapping road widths can be done by estimate based on a number of factors that are both vector and meta information, I fail to see how presenting an area will actually present any more information to a person. If they want such information and if there is aerial imagery they can just switch tile sets. > Well, it already does get moved as more accurate sources are added, but > to leave out that data because of this 'problem' is plainly ridiculous. Most data is already left out, unless you essentially turn raster data into raster daya and add as many points as possible there is always data left out so that's a non-sense argument. To counter balance this other information is added that others consider to be as important, map data is a combination of both vector and meta data to produce an overall picture of things. > To keep relevance, a change in width of a track could be many metres & > therefore should be mapped if possible. If people are this hard up for things to map there is always Kosovo and Australia for that matter, thanks to Nearmap we have a lot of high res data now available and not enough people plotting out the roads that need to be mapped. _______________________________________________ Tagging mailing list [email protected] http://lists.openstreetmap.org/listinfo/tagging
