I copied this last paragraph from the path vs. footway discussion to get comments of more people interested in it (I guess not so many longtime contributors are interested in reading yet another time the path vs. footway discussion).
According to the access page, "emergency" is not an access value (like e.g. "forestry"), but it is a vehicle category, currently in the wiki specified as "by use": http://wiki.openstreetmap.org/wiki/Key:access Look at the definition, I'd read this as "it is not necessary that there is an emergency, but it is necessary that the vehicle is of an emergency vehicle class (like police cars, ambulances, etc.)." so actually there might be a problem: e.g. "hov" and "hazmat" and "disabled" are actually classes that are defined by use: access will not be forbidden to any truck that can transport hazardous material, but only to those that actually do right now. "emergency" by it's current definition doesn't fit into this scheme as it seems to be independent from the "use", maybe this should go under motor_vehicle -> double_tracked -> emergency. On the other hand, "use" can have different meanings: it can be the current use in this very instant or it can be the general type of use (e.g. if I bought myself an ambulance but won't offer services or register and insure the vehicle as an ambulance I won't be able to enter roads that are reserved for emergency vehicles). Also "emergency" is somehow misleading, as probably any kind of transport of an ill person will allow an ambulance to enter a restricted road, regardless of the urgency. What do you think? Do we need refinements or should we move the "emergency" vehicle class from "by use" to the more general motor_vehicle -> double_tracked -> emergency category? Also note that "agricultural" is already there. cheers, Martin
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