Hi Ronny,
I thought of using the new itinary calculation crossing the Abacan bridge. I
can see from the map in this area that in Philippines, like elsewhere, ref tag
is used for roads (here ref=R-9).See the link for the
itinaryhttp://www.openstreetmap.org/directions?engine=osrm_car&route=15.1682%2C120.5893%3B15.1426%2C120.5962#map=15/15.1554/120.5929
With OSRM, it does show the ref-R-9 but do not report bridge crossing. With
Mapquest, there is even less info.
I wonder if OSMAnd on Android or any other road calculation software would
report bridge crossing.
Pierre
De : Ronny Ager-Wick <[email protected]>
À : Eugene Alvin Villar <[email protected]>; Pierre Béland <[email protected]>
Cc : OSM-PH <[email protected]>
Envoyé le : Mercredi 18 février 2015 20h18
Objet : Re: [talk-ph] Tagging bridges and tunnels
This is a good point Eugene, and in fact the bridge names are very good
landmarks, given that there are not many other signs on the roads in the
Philippines, especially in rural areas. Another thing to take into
consideration is that many bridges gain their name from the river they cross
over, so there may be many bridges with the same name. They are definitely not
tagged consistently at the moment, for example:
http://www.openstreetmap.org/#map=17/15.15516/120.59219
http://www.openstreetmap.org/#map=17/15.15840/120.60712
If I remember correctly, they are both named Abacan Bridge, but only one of
them has that name on the map, and incidentally the one with a different road
name on each side does not.
Do you know if common routing software will pick up the bridge:name=* tag?
Yes, I know we're not supposed to tag based on what current software will pick
up, but it is interesting to know, given that bridges are such great landmarks.
It would be great with a published suggested standard that fits the Philippine
conditions.
Ronny.
On 2015-02-19 08:08, Eugene Alvin Villar wrote:
Hi Pierre,
Most bridges here in the Philippines have names no matter how small. You can
usually spot their name on the guard rail or on a small sign just before the
bridge. These names are almost always accompanied by the maximum load the
bridge can handle (which is tagged using maxweight=*) and sometimes with the
distance from the island's zero-kilometer marker (I have no idea how to tag
these. Maybe distance=*?).
Some examples:
http://www.philippinesdailyphotos.com/wp-content/uploads/2009/04/bukidnon-atugan-bridge.jpg
http://www.zamboanga.com/z/images/0/09/Calapan_Bridge,_Calapan,_Kabasalan,_Zamboanga_Sibugay,_Philippines.JPG
http://static.rappler.com/images/tullahan-bridge-screengrab-20130708.jpg
Regards,
Eugene
On Thu, Feb 19, 2015 at 1:59 AM, Pierre Béland <[email protected]> wrote:
Eugene,
I expect that only the major bridges have name. And we generally refer to
these by their name and not the road reference. Unless you have
particularities in Philippines. Example Golden Gate Bridge in San Francisco
bay. OpenStreetMap | Golden Gate Bridge (52477381)
Pierre
De : Eugene Alvin Villar <[email protected]>
À : Ervin Malicdem <[email protected]>
Cc : OSM-PH <[email protected]>
Envoyé le : Mercredi 18 février 2015 12h35
Objet : Re: [talk-ph] Tagging bridges and tunnels
Hi Ervin,
Option 1 is what I do.
Take note that if we have a way with highway=something and bridge=yes, then
the object is primarily a highway/road and the bridge is only an aspect or
property of the highway/road segment. Therefore, the name=* tag should be the
name of the highway/road. And then put the name of the bridge on the
bridge:name=* tag.
Besides, it will be very weird to have a long highway with unconnected names
just because there are bridges along the highway.
The only time I would put the name of the bridge on the name=* tag is if the
roads from both ends of the bridge have different names. For example, the
bridge formerly called Del Pan in Manila: www.openstreetmap.org/way/4304674
~Eugene
On Wed, Feb 18, 2015 at 5:34 PM, Ervin Malicdem <[email protected]> wrote:
Query regarding tagging bridges.
What is the appropriate way of tagging bridges?
Option1: Use the name of the road, and place the name of the bridge under
bridge:name or the name of the tunnel under tunnel:name
Option2: Use the name of the bridge/tunnel, omit the road name
Thanks
Ervin M.
Schadow1 Expeditions - A Filipino must not be a stranger to his own
motherland. http://www.s1expeditions.com
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