[OSM-talk] BuzMap - Global Transit Map http://buz-map.com

Julien djakk djakk.geographie at gmail.com
Mon Jan 27 12:18:49 UTC 2020

Hello Mark !

I have tried this too :

With parallel lines and generalization :)

Julien “djakk”

Le dim. 26 janv. 2020 à 05:41, Mark Lester via talk <talk at openstreetmap.org>
a écrit :

> Hello Mappers,
> I've been building this http://buz-map.com, there's a couple of read me's
> at the top. There are a stack of issues but this now looks eminently doable.
> My pitch on all this is that people like maps. Give people a map of a
> transport network and they will follow the wiggly lines. They will notice
> that an island has a connecting ferry and a bus network (see Estonia).
> Envisage mountainous and wilderness areas and their transit geography more
> easily (see Sweden). Be able to scan an entire metropolis network to it's
> extremities without having to use trial and error (see Paris, Prague,
> Petersburg, Athens). And generally be intrigued and want to zoom in and
> discover. I am not having much success evangelizing this view with regard
> to a global transit map. If I can get this to a production state with all
> known GTFS, and sex up the high level areas that have no listed transport
> with a much deeper road network than you normally get at higher tiers, we
> will at least have the "intrigue me" travel map that I personally want.
> Obviously I haven't got very far with the front end. In particular it's
> not interacting very well on mobile, it's lousy in fact. I need help in any
> way shape or form available but if anyone knows how to get a thin line to
> interact in Leaflet on mobile, please suggest. I did try to paint a massive
> invisible one on top but it didn't work and I got nowhere with the
> debugger, so even help with that would be appreciated. I also want to do
> funky stuff like flipping the railways or buses to the foreground on
> touching. In a dense centre of a metropolis, being able to flip the metro
> or tram network to the top is already an important requirement. The Mapbox
> stuff does this but I haven't sussed the layers within tiles stuff and how
> to do it yet.
> I've got a game plan to fix most of the other bugs, especially in the rail
> routing which is quite screwed right now once you zoom in. I will get the
> whole of the visible GTFS world on there, so all of USA that's available,
> and anything else that I can find. It's going to take a few months,
> probably most of the year including downtime. I say visible GTFS, as oppose
> to existing. There is an awful lot of bus data that patently exists as it's
> in booking engines, and in GTFS form if it's on Google, but isn't anywhere
> easily found.
> What I want to investigate is to use the reduction method I have to draw
> efficient level 8 to 1 vector tiles of simplified road networks. So you can
> look at say all of India, US, Canada, China, Russia, Brazil or any area of
> that size, and get a decent view of the national road infrastructure even
> if I haven't got any bus data yet. I still will need to do some of the
> same simple reduction used for doing the detailed lower tier standard
> rendering of levels 7-16, i.e. filter road classifications down once it
> becomes an unavoidable mess even with reduction, leaving only motorways for
> the top two or so tiers. I think we will get a usable, readable and
> "representative" map of these upper layers, which by default are either
> road light or completely vacant. The bus network I have in Europe, which
> is just a tiny subset, is messy at the high level, I will try to refine it,
> but the trains work, so I am sure motorways will too and we'll tune in the
> lower road classifications and with appropriate clustering radii as we
> proceed down the tile tree.
> Any input gratefully received. Apologies for the spam of three lists,
> please respond directly unless it's something of interest to more than just
> me. Also I am in contact with OSM folks, I know I am using free tile
> servers. How we run this as a public self funding service is one of the
> many things I need help with. It seems an obvious gimme for anyone selling
> bus tickets but it's not easy to get anyone to pick the phone up. I have
> resigned myself to having to build a production system in between doing not
> a lot.
> Mark Lester
> _______________________________________________
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> talk at openstreetmap.org
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