Bonjour all To add my comments on this topic, I never add "ordinary" sidewalks except if they are "physically" separated from the street (not adjacent to). If I had to map them, I would use sidewalk:* tags.
I still think as Richard wrote: "I have roads and other things to map; I'll worry about sidewalks later". However, having this sidewalk wonderings only means is that the map is really getting detailed! Cheers, Daniel From: Richard Weait [mailto:rich...@weait.com] Sent: February-02-13 06:15 To: Talk-CA OpenStreetMap Subject: Re: [Talk-ca] Sidewalks On Fri, Feb 1, 2013 at 4:08 PM, nicholas ingalls <nicholas.inga...@gmail.com> wrote: My personal preference is to enable the JOSM sidewalk style and then use the sidewalk:right sidewalk:left, sidewalk:both, or sidewalk:none tags on the actual street. The footpaths are just about useless (as in the example above) as they are not related to the street in anyway. So the routing engine couldn't say turn left onto Maple Street. It could only say turn left. If the tags are on the actual street and not separately mapped, it is much easier for a routing engine. I think Bernie has raised an interesting question with a complicated group of replies. I don't think that we will find One Universally True Answer. As a mapper, I don't always add "ordinary" sidewalks where I see them. Initially, I thought, "I have roads and other things to map, I'll worry about sidewalks later." It was the early days of OSM. Available aerial imagery was much more limited and much lower resolution. When higher resolution aerial imagery became available to us, I had a bit of a "freak out". "Oh my!!! Look at all the PIXELS!!! I can map sidewalks, and, and, and, and, everything!!!" And so I did. I added sidewalks in some of the places that already had roads and schools and parks and rivers, etc. Now, I'm not as consistent, I guess. I'll add interesting walkways that aren't simply parallel to a street. I think adding a pedestrian path between neighbourhoods, and adjacent, non-adjoining streets is worthwhile. As a pedestrian, I use those paths to cut the walking distance to the store, or school. But I generally don't add the ordinary sidewalks. Except when I do add them. The points raised by Gordon and Harald, above, are important. There are routing services for pedestrians and cyclists and they can use separately-drawn sidewalks in ways that they can not extract data from road centerline parameters. I make an effort to properly connect new objects that I map with existing sidewalks, even if I'm not planning to map more sidewalks immediately.
_______________________________________________ Talk-ca mailing list Talk-ca@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-ca