Ok, It is not the easiest way of the World...but it is not the most complicated. First we think to start of the best aproximation: the REAL aproximation so: -If the marks are only marks and not physically separation...don't separate in different ways...because is not REAL. -If the way is double direction way you have to tag it with the appropiate direction scheme. It is not difficult: forward and backward. -If this road is in this way (with these traffic signs, with these restrictions, with these road marks...is for a good reason as you say in the first email)
So we have to tag it precisely.Then ...What we have in Openstreetmap to tag it? In OSM you have (without relations) : -change:lanes= to "draw" the lines (and mark the properties these lines have, remember there are traffic signs: horizontal traffic signs. In some countries they have traffic sign code too) -turn:lanes= to "draw" the arrows (and of course to add the value to each lane you have -destination:lanes= to "draw" the destination of each lane because in this example every lane has its own destination. Also you know (Hi I'm presenting myself I'm the crazy traffic sign JOSM guy - traffic_signs_XX [4] ) I am worried about vertical traffic signs so with extended traffic sign proposal [5] you can "draw" all the traffic sign you have in the pics. Sorry, there's no Mapillary or OSC pics (guys c'mon! ;) Let's start what I would do in: [1] https://www.google.com/maps/@42.813784,-73.9338004,3a,75y,27.92h,66.85t/data=!3m6!1e1!3m4!1sBwJUpJjqy_IH5HP1SmzcFQ!2e0!7i13312!8i6656 lanes:forward=3 change:lanes:forward=no|no|no turn:lanes:forward=through;left|through|trough;right destination:lanes:forward=| Seward only| With extended traffic sign proposal there would be two nodes, at the nearly same position telling: For one node before the cross: traffic_signs:forward=US:R3-6 turn:destination=through;right side=up For another one node nearly before the cross: traffic_signs:2:forward=US:R3-5a destination=Seward Only side=up (Note for local traffic engineers. I would change these to traffic signs with US:R3-8 or US:R-8b [6] , giving the information together I think is easier to take a decision). Ok we continue driving [2] https://www.google.com/maps/@42.8147778,-73.9331364,3a,75y,26.57h,57.2t/data=!3m6!1e1!3m4!1suJlScKIDzM8Gu0iu2GslFA!2e0!7i13312!8i6656 lanes:forward=3 change:lanes:forward=no|no|no turn:lanes:forward=left|left|right With extended traffic sign proposal there would be three nodes, at the nearly same position telling: For one node before the cross: traffic_signs:forward=US:R3-5 side=up turn:destination=right destination=Union St Only For another node nearly before the crossing: traffic_signs:2:forward=US:R3-5 side=up turn:destination=left destination=Seward Place Only For another node nearly before the other ones: traffic_signs:3:forward=US:R3-5 side=up turn:destination=left destination=Union St Only Ok, and then we will finish our drive with turning left and then... [3] https://www.google.com/maps/@42.8153897,-73.9341984,3a,75y,294.27h,81.64t/data=!3m6!1e1!3m4!1s7sxU233GvgJ9LBbSAC4_ng!2e0!7i13312!8i6656 lanes:forward=2 change:lanes:forward=no|no turn:lanes:forward=through|right Of course If I were a local engineer I would reforce the road marks and traffic signs with traffic_signs:forward=US:R3-5 turn:destination=right destination=Seward Place Only side=up For another one node nearly before the cross: traffic_signs:2:forward=US:R3-5a side=up This is How I would map these trips. I hope it will help you yopaseopor PD: [1] https://www.google.com/maps/@42.813784,-73.9338004,3a,75y,27.92h,66.85t/data=!3m6!1e1!3m4!1sBwJUpJjqy_IH5HP1SmzcFQ!2e0!7i13312!8i6656 [2] https://www.google.com/maps/@42.8147778,-73.9331364,3a,75y,26.57h,57.2t/data=!3m6!1e1!3m4!1suJlScKIDzM8Gu0iu2GslFA!2e0!7i13312!8i6656 [3] https://www.google.com/maps/@42.8153897,-73.9341984,3a,75y,294.27h,81.64t/data=!3m6!1e1!3m4!1s7sxU233GvgJ9LBbSAC4_ng!2e0!7i13312!8i6656 [4] https://josm.openstreetmap.de/wiki/Presets [5] https://wiki.openstreetmap.org/wiki/Proposed_features/Extended_traffic_signs_tagging [6] https://mutcd.fhwa.dot.gov/pdfs/2009r1r2/part2b.pdf (Page 16)
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