How do I add a no_exit restriction at one end of a non-one-way road in the iD-editor?
I seem to remember that it was previously possible to use the turn restriction interface in the editor to set a ‘no exit’ for a point. However, I do not see this option now so I am probably misremembering. The closest option is setting a ‘U-turn only’ but is this the same as ‘No exit’?
noexit isn’t a restriction, it’s just a tag.
If you mean Tag:noexit=yes I am not sure it is the correct one in this example? In the wiki for Tag:noexit=yes it says “This tag should not be used when the way is only a dead-end for one transport mode, but where other modes can continue” which seems similar to the situation in my example.
It is a non-one-way road that can only be entered in one direction (no barrier, just a sign). If I set a noexit=yes on the node (blue in the screenshot) how do I specify that it only applies to the vehicles coming from the east on the white road?
I think the restriction I need to use is the no_exit mentioned on the Relation:restriction wiki page. Just not sure how to actually set it.
It is a valid restriction=* value, if a more rarely used one, apparently, which might explain why it isn’t selectable on iD.
At some point, I’d do it manually and not bother with iD’s turn restriction tool.
Not only is it rarely used, but it’s also very rarely supported among routers, if at all. I think it’s much more common to split the way near the intersection, creating a very short one-way segment (which can have oneway:bicycle=no for instance). At least in situations I’ve seen, this happens to reflect the situation on the ground, since there’s usually a pinch point formed by curb extensions or other barriers to reinforce the no entry or no exit sign. Sort of a micromapping approach. If there’s only a sign, I would probably still do that as a practical matter, based on the location of the sign.
There was a discussion about this issue in the german subforum some time ago and as far as I remember this was the favoured option. Afterwards I mapped a “no exit” road using this approach:
Yeah in a situation like that, this is exactly how I’d do it, that portion of the road is realistically one way.
