Shaun McDonald wrote: > On 23 Mar 2009, at 19:14, Andrew M. Bishop wrote: > >> [email protected] (Andrew M. Bishop) writes: >> >>> I decided that what would be fun to implement is a routing algorithm >>> that can find the best (shortest or quickest) route between any two >>> OSM highway nodes. I know that there are other routing algorithms >>> available but this started as an intellectual exercise so I developed >>> my own. It seemed to work so I added a fancy web front end to it and >>> put it on a server. >>> The router itself (requires JavaScript for the map etc): >>> >>> http://www.gedanken.org.uk/mapping/router/router.html >> >> On a topic related to the other ongoing discussion about tagging >> footway and cycleway it is obviously important for a router that >> things are tagged consistently. >> >> The router is currently mapping highway=path to be identical to >> highway=footway so that foot=yes is implied. This will cause a >> problem with the router if the path is also bicycle=designated. When >> you run the router with bicycle as your mode of transport and disable >> using footways (which is the default state for bicycles) then it won't >> take the path. > > Obviously the tagging is too complex. My definition of a highway=path > is a worn line in some grass. If it is something that is maintained > for cyclists then it is a highway=cycleway, with an option foot=yes, > cycleway=shared or cycleway=segregated. This is the reason why you > need as few tags as possible to tag something, rather than having a > lot of modifier tags. > > Shaun > > __________
Firstly, I've now had a play with this - excellent work! Secondly, I have a residence on the Isle of Wight - but there's a ferry - and it doesn't have ferries. Yet. If you can get all 3 car ferries you'll be ahead of Navteq who can't find the Red Funnel from Southampton at all, and will in fact route from the ferry terminal to the far terminal via the rival company... Hopefully it's just another tickbox? Mark _______________________________________________ Talk-GB mailing list [email protected] http://lists.openstreetmap.org/listinfo/talk-gb
