On 26 Feb 2009, at 11:25, Christoph Boehme wrote: > > > Peter J Stoner wrote: >> In message >> <[email protected] >> m> >> Frankie Roberto <[email protected]> wrote: >> >>> Indeed - I've started to do a few stations near me. One of the >>> unsolved >>> problems (to my mind), is how to add platforms numbers. ref=* has >>> been >>> suggested, but most island platforms usually have a different >>> number for >>> each side of the platform (sometimes even splitting the sides up >>> as 1a, 1b, >>> etc). See discussion here: >>> http://wiki.openstreetmap.org/wiki/Talk:Proposed_features/unified_stop >>> area#Sheffield > > We could model the whole platform as an area with two additional > ways at > either side of the area polygon to add platform-side specific > information.
The IFOPT standard appears to define polygons for what they call Quays (called platforms in this discussion) each of which has a name. For example an area of platform might contain two 'quays' for 4 and 3 and 'quay' 4 might also be subdivided into 4a, 4b and 4c. Figure 4 in the IFOPT document describes what they mean (URL in previous post). Could we do the same? We define a closed way for the main area where people can stand and then define children of that using polygons again, with an is_in tag? I am not sure when I will get time to do more on my local station, but this what I have for it now (I did most of this a year ago and a couple of people have tweeked it since then). Feel free to bring it more up-to-date. Having the building defined seems to obsure all the platforms inside which is a shame. I have not defined the sub- platforms yet but might give that a go soon. Notice that it also includes the car parks and paths associated with the station and that I invented a 'PT Interchange' relation to try it out - quite happy to change that though. http://www.openstreetmap.org/browse/relation/2522 Regards, Peter > > >> There are some more ways that platforms are divided up: >> >> On the West Coast main line there are coloured zones, eg Gold Zone, >> Purple Zone etc. >> > --%<-- >> >> The Japaneze use the position on the platform to suggest where to >> board in relation to the exit at the destination station. (see >> www.navitime.com - for the London Underground) > > A similar system exists for trains in Germany. Each platform is split > into sections (A to G typically) and a large chart explains for each > train stopping at the platform in which section each coach comes to > halt. That's handy if you have reserved seats. > > I assumed that the coloured zones on the West Coast main line where > used > for the same thing (with the Gold Zone being the area where first > class > coaches stop :-) ) > > Christoph > > > _______________________________________________ > Talk-transit mailing list > [email protected] > http://lists.openstreetmap.org/listinfo/talk-transit _______________________________________________ Talk-transit mailing list [email protected] http://lists.openstreetmap.org/listinfo/talk-transit
