On Tue Nov 24 15:39:45 2015 GMT, johnw wrote: > > > On Nov 24, 2015, at 11:32 PM, Martin Koppenhoefer <dieterdre...@gmail.com> > > wrote: > > > > the road, they are quite capable of deciding which side to walk, where > > to cross and whether it is simply easier to walk on the road. > > > TL;DR: > Although I care more about the rendering than the routing, the routing in > this situation needs to be very explicit in places because sidewalks are > crazy in some countries. Simple routing may work in most of the globe, but > there are some cities/countries where pedestrian access conventions require > very explicit mapping and routing. > > ~~ > > I can imagine that this is a non-issue in a lot of places, as I grew up where > getting to the other side of the street was not such a big deal, nor was what > side of the street you were on a big deal when looking for routing > information. > > But there are plenty of places - or at least city centers - where it is a > big deal. > > There are plenty of situations out here in small Japanese towns (let alone > Tokyo) where which side of the street you are on is very important for > routing, and it is impossible to change sides in a convenient/safe spot after > a decision has been made. Some have dead-end sidewalks (that end in walls and > a narrow shoulder) that put you into extremely hazardous situations (being > right next to traffic against a wall/guardrail - which they do all the time), > or put you onto walkways onto bridges where you cannot take walkways that > lead away from the opposite side, or there are access stairs to the > pedestrian walkways that run under the bridge that only connect on one side > of the bridge (leading to 300 meters or more of walking around the longer > route). as most Japanese towns are in valleys or near water, there are tons > of bridges everywhere - some with really weird pedestrian routing > restrictions. > > given the absolute psychotic nature of Japanese sidewalks throughout the > whole country, explicit sidewalk mapping is a very good thing. I was just in > Tokyo this evening - and I used 6 different kinds of footpaths - two were > sidewalks with severe access restrictions to keep people out of the street > (large steel pipe fencing along the road to keep people from Jaywalking) > except at crosswalks, down to one way alleys with the green paths. choosing > the correct side of the street makes a difference for certain ped access > bridges to other buildings, to subway and train entrances (which by no means > are accessible from the other side - steel pipe barrier and all), or lead to > completely different layers and tunnels depending on your side of the road. > You are describing situations where there are separate sidewalks, you are mentioning fences and other restrictions. In these cases I would map sidewalks as separate ways.
Both methods, separate ways or as highway tags, are fine and should be used as appropriate. Phil (trigpoint) -- Sent from my Jolla _______________________________________________ Tagging mailing list Tagging@openstreetmap.org https://lists.openstreetmap.org/listinfo/tagging
