On http://wiki.openstreetmap.org/wiki/Tag:highway%3Dmotorway_junction you can find the following description on the exit_to tag. 'exit_to<http://wiki.openstreetmap.org/wiki/Key:exit_to> =* should be used to detail the destinations where the junction exits to—for example, if signage states a road leads to Anytown on the A1000… exit_to <http://wiki.openstreetmap.org/wiki/Key:exit_to>=Anytown A1000<http://wiki.openstreetmap.org/w/index.php?title=Tag:exit_to%3DAnytown_A1000&action=edit&redlink=1>; if multiple destinations are shown on signage, tag them with semicolons: for example, exit_to <http://wiki.openstreetmap.org/wiki/Key:exit_to>=Anytown A1000; Elsewhere A1001; Anyvillage<http://wiki.openstreetmap.org/w/index.php?title=Tag:exit_to%3DAnytown_A1000;_Elsewhere_A1001;_Anyvillage&action=edit&redlink=1>; note that Anyvillage doesn't have a ref number'
Unfortunately, exit_to is not documented. The destination in my opinion has same purpose as exit_to, but is a better choice because you can use it on both outgoing parts of the Y-branch and because you can use in in conjunction with destination:lanes. Some questions on this: 1. Have you ever used exit_to? 2. Have you ever used destination? 3. are you willing to document exit_to? 4. is it clear for you when to use exit_to and when to use destination? 5. do you have any problems (and if so: which ones) when the exit_to description is removed from the wiki? I'm looking forward to your answers Cheers, Johan.
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