I agree with the above answer that except #2, all are bridge. One other method to identify a bridge is to check the structure (either with a "tablier"/bridge deck which goes from one support to the next, or with arch like one of the example...). There are typical bridge structure, while most tunnel are just a concrete passage.
Le mar. 28 mai 2019 à 09:29, Tim Couwelier <tim.couwel...@gmail.com> a écrit : > I'll agree with everyone else on the given selection here. > > As for how I try to decide: > Ideally, you'd have the history of 'what came first'. Whichever level this > one is at goes as the 'baselevel'. > Either a new road / railway / .. goes: > OVER it, making that a bridge > UNDER it, making it a tunnel > AT THE ORIGINAL LEVEL, making the existing road/path a bridge or tunnel > based on how that got adjusted. > > That makes this a railway-bridge: > https://www.google.be/maps/@50.9501557,3.1304248,3a,60y,255.18h,91.97t/data=!3m6!1e1!3m4!1sV8dGdG1hKMYxX3JldKdTSA!2e0!7i13312!8i6656 > But this, just a bit further, and at the same level as the road shown in > the previous example, a tunnel for cyclists: > https://www.google.be/maps/@50.9516067,3.1299799,3a,48.9y,281.94h,86.62t/data=!3m6!1e1!3m4!1sPooi08Nvz-feFB6XzaibnQ!2e0!7i13312!8i6656 > > Hope that makes sense, I personally feel it matches with how people tend > to label things. > > > > > > Op di 28 mei 2019 om 00:04 schreef Pieter Vander Vennet < > pieterv...@gmail.com>: > >> Cool collection of bridges (except #2). I too think that if its not dug, >> it's not a tunnel. >> >> I have another cool example, not from belgium though: >> https://www.google.be/maps/@45.5067122,6.6792676,3a,75y,267.08h,77.06t/data=!3m6!1e1!3m4!1stJwtCeCLHlLxMPnVB_ZYdw!2e0!7i13312!8i6656?hl=nl >> >> This view is on a bridge (over a small valley) which acts as ski piste >> (in winter), and continues through a building (which has a ski piste on >> top). >> >> Met vriendelijke groeten, >> Pieter Vander Vennet >> >> >> Op ma 27 mei 2019 om 22:44 schreef GeDeOn . <gedeon2...@outlook.fr>: >> >>> Hi Stijn and all >>> >>> In my opinion, a tunnel is something that was dug, in a hill or in >>> mountain, under a river, ... >>> >>> Otherwise I would think of a viaduct. >>> >>> In that regard only your case #2 is a tunnel. >>> >>> Just my 2 cents... >>> >>> Pierre >>> >>> >>> >>> Envoyé depuis mon smartphone Samsung Galaxy. >>> >>> -------- Message d'origine -------- >>> De : Stijn Rombauts via Talk-be <talk-be@openstreetmap.org> >>> Date : 27/05/19 20:57 (GMT+01:00) >>> À : OpenStreetMap Belgium <talk-be@openstreetmap.org> >>> Cc : Stijn Rombauts <stijnromba...@yahoo.com> >>> Objet : [OSM-talk-be] bridge or tunnel? >>> >>> Hi, >>> >>> 1. This is a bridge: no doubt. >>> >>> https://www.google.be/maps/@50.9628551,5.0810297,3a,75y,328.21h,89.12t/data=!3m6!1e1!3m4!1sXz43z9vWyUiOpCVTschIUQ!2e0!7i13312!8i6656?hl=nl >>> >>> 2. This is a tunnel: sure enough. >>> >>> https://www.google.be/maps/@50.6138142,5.5973887,3a,75y,97.64h,84.03t/data=!3m6!1e1!3m4!1sRvKwojNbhvMdSBWG3zViLw!2e0!7i13312!8i6656?hl=nl >>> >>> 3. This looks like a tunnel, no? Or is the fact that the railway is on >>> an embankment enough reason to make it a bridge? >>> >>> https://www.google.be/maps/@50.5508531,4.7216376,3a,89.9y,51.8h,87.45t/data=!3m6!1e1!3m4!1s4GoklQWnN5bW6ugdo1grmg!2e0!7i13312!8i6656?hl=nl >>> >>> 4. This one looks more like a bridge: >>> >>> https://www.google.be/maps/@50.5923923,4.6668939,3a,75y,57.67h,80.29t/data=!3m6!1e1!3m4!1s4y-C9gvI9ZsUk9jcNQX4eA!2e0!7i13312!8i6656?hl=nl >>> >>> 5. And this? Brunnel or tidge? >>> >>> https://www.google.be/maps/@50.5214486,4.8868137,3a,75y,27.85h,81t/data=!3m6!1e1!3m4!1sx0n9EuFTEx27S4sCQ--GPg!2e0!7i13312!8i6656?hl=nl >>> >>> 6. And if it gets shorter? >>> >>> https://www.google.be/maps/@50.5317414,4.9485687,3a,75y,39.18h,91.35t/data=!3m6!1e1!3m4!1sdTd6puiPIvGKsLBzeCzB6Q!2e0!7i13312!8i6656?hl=nl >>> >>> 7. And this? >>> >>> https://www.google.be/maps/@50.8660892,4.3648486,3a,75y,333.02h,85.73t/data=!3m6!1e1!3m4!1swvUHgLYhl8R5IXGVJ2QWiQ!2e0!7i13312!8i6656?hl=nl >>> >>> 8. A bit more complicated: not only a railway, but also the platforms on >>> a bridge? Or above a tunnel? >>> >>> https://www.google.be/maps/@50.8101922,4.3991964,3a,75y,63.96h,87.57t/data=!3m6!1e1!3m4!1s2ioHz72P7Ju0aTcMLalGKg!2e0!7i13312!8i6656?hl=nl >>> >>> 9. And if you turn around: >>> >>> https://www.google.be/maps/@50.8101922,4.3991964,3a,75y,258.54h,101.02t/data=!3m6!1e1!3m4!1s2ioHz72P7Ju0aTcMLalGKg!2e0!7i13312!8i6656?hl=nl >>> >>> I am curious about your opinion... >>> But of course, what those things are, is not really the question. How >>> should they be mapped? That's the question. >>> >>> Regards, >>> >>> StijnRR >>> >>> _______________________________________________ >>> Talk-be mailing list >>> Talk-be@openstreetmap.org >>> https://lists.openstreetmap.org/listinfo/talk-be >>> >> _______________________________________________ >> Talk-be mailing list >> Talk-be@openstreetmap.org >> https://lists.openstreetmap.org/listinfo/talk-be >> > _______________________________________________ > Talk-be mailing list > Talk-be@openstreetmap.org > https://lists.openstreetmap.org/listinfo/talk-be >
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