[OSM-talk] Downloading Version 3 of all bus stops in a country

[Safwat Halaby]

On Wed, 2017-09-27 at 09:18 +0200, Jo wrote:
> 2017-09-27 8:30 GMT+02:00 Safwat Halaby <swiftfast at gmx.com>:
> 
> > On Tue, 2017-09-26 at 11:46 +0200, Jo wrote:
> > 
> > > Then load that in PostGIS and create scripts to read GTFS into
> > > PostGIS.
> > > 
> > > Then compare the data in the DB and produce output and ideally a
> > > UI.
> > > 
> > > I started doing something like that here:
> > > 
> > > https://github.com/osmbe/public_transport
> > > 
> > > Let me know if you see ways of working on that or another way to
> > > tackle the
> > > problem together.
> > > 
> > > Jo
> > 
> > I will check the project out. Thanks for the link. Would you mind
> > explaining what it is capable of? The readme is not so descriptive.
> > 
> 
> For the time being not so much yet. Before the summer I made some
> progress
> migrating scripts I had created for an import of Belgian bus stops
> and
> lines, but during the summer I got a bit 'distracted' by mentoring
> the
> PT_Assistant plugin.
> 
> The basic idea is to take operator data, either GTFS or a dump of
> their
> internal DB.
> 
> Then compare all the stops regarding tags and position. For the stops
> the
> other tables routes, trips and segments, can be used to calculate
> route_ref.
> 
> Then create OSM route relations based on their data and compare to
> what is
> present in OSM.
> 
> This is where it becomes trickier to keep track of their versions and
> ours,
> especially if the intent is to both give feedback to the operators
> and have
> a platform showing mappers which stops, routes and route_masters are
> in
> need of attention.
> 
> Polyglot

That's very interesting. My script is far less ambitious (no routes,
only plain stops).