[roads] Render the "toll" tag
|Reported by:||Habbit||Owned by:||mapnik-team@…|
As requested in #2597 for osmarender, I think that Mapnik should render tolled roads in some way that is easily distinguishable from non-tolled roads. This would be really useful when planning routes. As an example, can you tell which one of these Spanish motorways is tolled? http://www.openstreetmap.org/?lat=40.3303&lon=-3.7898&zoom=13&layers=M (hint: it's the R-5, although you can't tell from the map).
A few suggestions over the possible rendering:
- Some kind of icon inside the identifier or alongside/below it, like a currency sign or some traffic signal like http://commons.wikimedia.org/wiki/File:Spain_traffic_signal_r200.svg
- A darker shade of the color used for a non-tolled road of the same category. It is important that the algorithm be generic because non-motorways can be tolled too (some bridges, tunnels, etc. on trunk/regional roads are tolled). This is more or less what Google does and I consider it a quite good approach: http://maps.google.es/?ie=UTF8&ll=40.32888,-3.800068&spn=0.09239,0.222816&z=13
- A different color altogether. This is what Bing does, and is not a bad approach, but it would require creating a new color scheme for all roads that did not conflict with the existing one: http://www.bing.com/maps/?v=2&cp=40.327756177544124~-3.8051634729476973&lvl=13&sty=r
- Some other visual identification like stripes, dots, whatever