Graham Jones wrote: > Err...what does tmc stand for? TMC stands for Traffic Message Channel, see e.g. http://en.wikipedia.org/wiki/Traffic_Message_Channel
It's a standardized format for transmitting information about blocked roads, traffic jams, accidents etc. They have IDs for road sections to be able to describe where one of these events has happened, and mapping these IDs in OSM would make it possible to use TMC messages in OSM-based navigation software. In Germany, we had a huge discussion about TMC a while ago because the previous tagging scheme for TMC IDs was pretty horrible - see this node for example: http://www.openstreetmap.org/browse/node/595024 So I'm happy that there is now a much more sensible proposal available. Heinrich Knauf wrote: >> http://wiki.openstreetmap.org/wiki/DE:Proposed_features/New_TMC_scheme This is clearly a massive improvement. The long and detailed description makes it look a bit more complicated than it really is, but considering that it also gives some background about how TMC works and explains why the proposal makes these exact suggestions, the length of the text seems reasonable. Apart from the obvious improvements (shorter keys, country codes instead of numbers etc.), I especially appreciate that it should be relatively hard to break even if you don't know much about it. You can still split a way with tmc=... tag or move some of its nodes without causing any harm. And if you do break something nevertheless, it will probably be easy to spot most of the time. So, I think this proposal is as mapper-friendly as possible, considering the complex subject matter. Btw, have you considered to create some rendering of these TMC tags to make them more visually accessible? Tobias _______________________________________________ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
