Hi Alexey,
Is there somewhere a list of all the checks ?
I've noticed that the Jungle Bus validation ruleset for JOSM and Osmose
<https://github.com/Jungle-Bus/transport_mapcss> already covers some of
these, and I think it would not be so hard to add most of these subway
rules to it.
--
Noémie Lehuby
Jungle Bus - http://junglebus.io
Le 31/05/2019 à 14:02, talk-transit-requ...@openstreetmap.org a écrit :
Date: Thu, 30 May 2019 20:29:08 +0300
From: Alexey Zakharenkov<eulenspie...@list.ru>
To: Tijmen Stam<mailingli...@iivq.net>
Cc: Public transport/transit/shared taxi related topics
<talk-transit@openstreetmap.org>
Subject: Re: [Talk-transit] Public transport validator+generator from
Maps.Me
Message-ID:<f2f97af2-c391-44b0-8d89-783778dea...@list.ru>
Content-Type: text/plain; charset="utf-8"
Hello, all readers of «PT validator+generator from Maps.Me» thread!
Thank you, I’ve not excepted to get so encouraging feedback in so short time.
For some reason I haven’t got each reply to my mailbox, but I’ve got them in a
«Talk-transit Digest». So let me answer here to all questions.
1) "Have you checked whatever some of validation rules can be included in the JOSM
validator?"
No, I haven’t. I’ll try to find time to check, but unlikely shortly.
2) "Can you expand it to modes besides subway?"
The validator has two notional modes: underground (subway + light_rail + monorail +
train considered to be rapid transport) and overground (bus, tram, trolleybus, … ).
We run validator with ‘underground' option on a predefined list of rapid transit
networks, which has a form of google-table document, link to which is given in repo’s
readme. The results you can see athttp://osm-subway.maps.me
<http://osm-subway.maps.me/> . At present we do not process overground
transport in our application, but the google doc has an ‘Overground’ sheet with some
cities.
3) "shouldhttp://osmz.ru/subways/ <http://osmz.ru/subways/> be considered
obsolete?»
We run subway validation on a daily basis. If one would have monitored the
subway state for some time, it would become evident that it changes every day,
unfortunately towards degradation if let it go (regarding correctness, not
fullness). Week-old validation results can be considered as outdated (some
cities remain stable for months though). So, Ilya Zverev’s page is definitely
obsolete. BTW, each generated validation HTML page has timestamp at the bottom.
4) "what are Maps.me<http://maps.me/>'s recommendations for subway tagging?»
The author of the preprocessor, Ilya Zverev, wrote such recommendations
athttps://wiki.openstreetmap.org/wiki/Metro_Mapping
<https://wiki.openstreetmap.org/wiki/Metro_Mapping> . They are not the
ultimate truth, and the validator is actually more flexible and resistant to
different mapping techniques as long as the mapped things allow to obtain consistent
and unambiguous transport data snapshot. Anyways, the recommendations along with the
tool have a conclusive strong side: they proved their effectiveness for production
purposes at world-wide scale.
5) "For Belgium, I am missing the Charleroi lightrail …»
The google doc is open for commenting and it is permanently improving! Please
leave your suggestions to rapid transit network list in comments to appropriate
cells, or to free cells underneath if a new network is suggested.
6) "Should an "Entrance" be used at aboveground stations?»
Surely, entrances increase map accuracy and help navigation. Subway infrastructure
may be fully or partially located on the ground (level=0) or even overground
(level>0).
7) "I have not tested this but think that your preprocessor requires a
"station" node. However, I don't see this necessity in PT v_2.»
@Tijmen The preprocessor requires «station» object in its broad sense:
railway=station/halt, highway=bus_stop/tram_stop. All other elements
(platforms, stop_positions, entrances) are optional, but not a station.
@Jason I’ve raised Paris metro and Paris RER from ruins in two weeks. I
estimate New York Subway to be in not much more worse state. Efforts of already
involved mappers are not sufficient to quickly put all subways in order.
Best regards,
Alexey
29 мая 2019 г., в 22:44, Tijmen Stam<mailingli...@iivq.net> написал(а):
On 29-05-19 17:35, Alexey Zakharenkov via Talk-transit wrote:
Hello everybody!
I'm a part of team who worries about public transport status in OSM database,
especially rapid transit transport. I want to represent a public transport
validator+generator that somebody might find a useful facility. It's open
source:
https://github.com/mapsme/subways
Given a list of transport networks it generates output suitable not only for
rendering PT routes but also for routing. Meanwhile it finds errors like gaps
in rail/road sequence in a route, absent/doubling station at a stop, etc. We
run the validator daily and publish the results at
http://osm-subway.maps.me
The page shows that even large and important subway systems (like New York
Subway) in OSM DB are currently corrupted and therefore unusable for practical
purposes. Difficulties occur not only due to negligent mapping but also due to
misalignment how to map PT. I call you, who is interested in PT, to use this
instrument, evaluate it and give feedback. We're ready to improve this tool for
the community sake and take into account worthwhile suggestions.
Thank you for your attention.
I'm ready to answer any questions.
Thank you, very useful!
I have not tested this but think that your preprocessor requires a "station"
node. However, I don't see this necessity in PT v_2.
For Belgium, I am missing the Charleroi lightrail (Metro Leger) system (and possibly
Antwerps "premetro" system, but that is a mixture of tram and subway.
For Austria, I am missing the Dorfbahn Serfaus system.
Then a question about Rotterdam: Should an "Entrance" be used at aboveground
stations? E.g. Maassluis west (converted from train station / to be opened:
https://www.google.nl/maps/place/Maassluis/@51.9262933,4.2356667,214m
Where should the entrance be placed?
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