Day3-0930-LT-Bus stop maintenance in Switzerland

Michael Spreng
Sunday Lightning talk, Main hall

http://2017.stateofthemap.org/2017/bus-stop-maintenance/

Transcript

1. Bus stop maintenance in Switzerland Michael Spreng Swiss OpenStreetMap Association August 20, 2017
2. Data from the Swiss government A list1 of public transport stops maintained by the federal office of transportation The Swiss community imported it in 2010. About 50% were not mapped. 1”Didok-Liste” on https://www.bav.admin.ch/bav/de/home/themen/alphabetische-themenliste/verzeichnisse.html
3. Quality The initial quality of the data (mainly the positions) was not so good. Plan to survey all imported stops. https://didok.osm.ch There are still 4352 stops2 unreviewed since import (16%) 2as of 2017-08-09
4. Maintenance: bit rot Mechanical edit for removed stops Further ideas for mechanical maintenance: Name changes, improved position, operator changed. Currently done manually Figure: comparison interface showing stops with name differences
5. Maintenance: New stops additional information uic number (useful for timetables) [uic ref=*] ”full” name (also useful for timetables) [uic name=*] operator elevation Not all mappers know about this data source. Some new stops are not yet mapped.
6. Maintenance: Example missing details Figure: Bus stop is mapped in OSM, but missing the uic number, name and operator. Matching is done with this uic number in this tool https://didok.osm.ch
7. Aside: Public transport tagging Lots of awkward conversations with new mappers. Too much emphasis on stop position.
8. Summary OSM is better: for many stops both directions are mapped separately. Importing first and improving later didn’t work. A lot of manual work. More effort needed to battle bit rot. Difficult to reach new mappers.