[Talk-transit] PT preprocessor from Maps.Me news

[Alexey Zakharenkov]

Hi,

let me share some news from Maps.Me PT preprocessor.

1) Fetching data from overpass API has been release. Now only Python interpreter is needed to validate transport networks for a city or a small country. The scenario with minimum options is:

mkdir /tmp/subway
# generate validation file in json format
python3 process_subways.py --bbox -c "Hamburg S-Bahn" -l /tmp/subway/validation.json
# generate HTML output
python3 validation_to_html.py /tmp/subway/validation.json /tmp/subway/

2) You can observe a validated PT network scheme on the map. Follow «View on the map» link at the preprocessor page: http://osm-subway.maps.me/index.html <http://osm-subway.maps.me/index.html>
Only networks passed validation are shown. This rough visualization aims validation, no high representative quality currently implied.

Bug reports and other feedback is welcome.

Alexey,
Maps.Me



>>>> 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.
>> 
> 

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