I can only tell you how I would do it with the current scheme. If some day in a very distant future we'll have routes built up from segments, there might be a better way then.
2016-08-03 8:55 GMT+02:00 Michael Tsang <mikl...@gmail.com>: > Dear all, > > How should I fill in the ref=* tag for public transport routes with > multiple > reference numbers, in each of the following cases? > > 1. There is a service identified by three different numbers, while in fact > the > three numbers belong to the same service with completely no differences. > This > is the case with minibus routes 52A/54A/56A in New Territories, where two > operators jointly dispatch minibuses onto these routes, sometimes with > number > 52A, sometimes with 54A, and sometimes with 56A. However, they are > identical > services. > > Is using semicolon in the ref=* tag a good idea? > No. I would use 3 separate route relations. Annoyingly JOSM's validator will probably complain about that. They are 3 different routes though and the operator/network tags will be different between them. > > 2. There is a service identified by two different numbers, where the two > numbers > are always used simultaneously. This is the case with Shenzhen bus routes > M215-M218, where both numbers are always displayed side-by-side in bus > stops > and on the number plates of the buses. They are almost never used > individually. > Mark ref as it is marked on the buses and the stops, so probably ref=M215-M218 > > 3. There is a service, due to operational reasons, identified by two > different > numbers. However, the two different numbers are used in different segment > of the > service, but in fact, they belongs to the same service (i.e. passengers can > get a ticket and board the vehicle on the segment with the first number, > and > alight at the end of the segment with the second number without > intermediate > alighting or additional payment). This is the case with train route > Z806/Z803 > from Zhaoqing to Kowloon, where the number Z806 is used on the segment from > Zhaoqing to Guangzhou, and Z803 is used on the segment from Guangzhou to > Kowloon (i.e. it can be treated as a through service). > I would use 2 separate routes here as well. I don't think we have a way to indicate the happy coincidence that passengers can remain seated, but they do behave like different routes. Polyglot
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