Pt:Key:bridge

From OpenStreetMap Wiki
(Redirected from Pt-br:Key:bridge)
Jump to: navigation, search
Linguagens disponíveis — Key:bridge
· Afrikaans · Alemannisch · aragonés · asturianu · azərbaycanca · Bahasa Indonesia · Bahasa Melayu · Bân-lâm-gú · Basa Jawa · Baso Minangkabau · bosanski · brezhoneg · català · čeština · dansk · Deutsch · eesti · English · español · Esperanto · estremeñu · euskara · français · Frysk · Gaeilge · Gàidhlig · galego · Hausa · hrvatski · Igbo · interlingua · Interlingue · isiXhosa · isiZulu · íslenska · italiano · Kiswahili · Kreyòl ayisyen · kréyòl gwadloupéyen · Kurdî · latviešu · Lëtzebuergesch · lietuvių · magyar · Malagasy · Malti · Nederlands · Nedersaksies · norsk bokmål · norsk nynorsk · occitan · Oromoo · oʻzbekcha/ўзбекча · Plattdüütsch · polski · português · português do Brasil · română · shqip · slovenčina · slovenščina · Soomaaliga · suomi · svenska · Tiếng Việt · Türkçe · Vahcuengh · vèneto · Wolof · Yorùbá · Zazaki · српски / srpski · беларуская · български · қазақша · македонски · монгол · русский · тоҷикӣ · українська · Ελληνικά · Հայերեն · ქართული · नेपाली · मराठी · हिन्दी · অসমীয়া · বাংলা · ਪੰਜਾਬੀ · ગુજરાતી · ଓଡ଼ିଆ · தமிழ் · తెలుగు · ಕನ್ನಡ · മലയാളം · සිංහල · ไทย · မြန်မာဘာသာ · ລາວ · ភាសាខ្មែរ · ⵜⴰⵎⴰⵣⵉⵖⵜ · አማርኛ · 한국어 · 日本語 · 中文(简体)‎ · 吴语 · 粵語 · 中文(繁體)‎ · ייִדיש · עברית · اردو · العربية · پښتو · سنڌي · فارسی · ދިވެހިބަސް
Public-images-osm logo.svg bridge
Bridge-yes.jpg
Descrição
A ponte é uma construção artificial que se estende por uma estrada, ferroviária, fluvial ou outro recurso e carrega um rodoviário, ferroviário ou outro recurso.
Grupo: Properties
Usado nestes elementos
não deve ser usado em pontospode ser usado em linhasnão deve ser usado em áreasuso em relações não especificado
Valores documentados: 9
Situação: Não definido

A ponte é uma construção artificial que se estende por uma estrada, ferroviária, fluvial ou outro recurso e carrega um rodoviário, ferroviário ou outro recurso.

There is a single "bridge=<type>" tag:

bridge=yes
bridge=aqueduct
bridge=viaduct
bridge=movable+bridge:movable=swing
bridge=yes+bridge:structure=simple_suspension

which includes various bridge and bridge-like structures like viaducts and aqueducts.

In other words, all bridge-like structures are values of the bridge tag. This is acceptable on nodes and ways, although most instances are on short-ish ways.

In case of an undercrossing/underpass you have to decide on the basis of the construction if you are over a tunnel or on a bridge. The ramps on both sides at an overpass are not part of the bridge. A ramp can be tagged as embankment.

How to Map

Bridge-Junction-Connection.png

The way of a street or of a railway has to be split in three parts: the way before the bridge, the bridge itself, the way after the bridge. Often the bridge will not connect directly to a junction in which case you should add a piece of road connecting the two.

  1. Mark the beginning of the bridge (abutment) by a node.
    In JOSM split the line by key P, in Potlatch by key x.
  2. Mark also the end of the bridge by a node.
    In JOSM split the line by key P, in Potlatch by key x.
  3. Now select the way representing the bridge.
  4. Add the attribute bridge=yes.

Example for a primary road:

highway=primary
+ bridge=yes
+ layer=1
+ name=usually the road over the bridge
+ ref=*

For the name of the bridge itself there are two proposals: bridge_name (en) and one using relations (en)

Other useful tags:

Complex Bridges

3 bridges together

For the description of complex bridges, where two or more bridges cross each other, we use Key:layer:

highway=motorway - the ground level
+ layer=0

highway=motorway - the first bridge from ground level
+ bridge=yes
+ layer=1

highway=motorway - the upper bridge
+ bridge=yes 
+ layer=2

There are five layer-degrees upwards (1 to 5), and five downwards (-1 to -5).

For ascending/descending chutes we dont use a layer.

When there are several bridges close together it is sometimes acceptable not to tag them as bridges, but to tag the single road below as going through a tunnel.

Combining with Key:layer

Tag layer=* is used to separate things that are physically on different levels. The tag bridge=* does not imply anything about layers, so if your bridge crosses any feature on layer=0 (the default if not present), you should consider adding a layer=1 (or higher).

Relation

A bridge can also be tagged as a relation. The proposal can be found under: Relations/Proposed/Bridges_and_Tunnels (en). This enables the grouping of several ways using the same bridge. The relation also enables tagging the number of the bridge (in germany bridges and tunnels have "Bauwerksnummern").

Rendering

In Osmarender (en) (version 4) bridges are drawn with a black outline ending in angled little stubs. The road is drawn on top as usual depending on its type. Mapnik (en) uses a black outline for bridges. JOSM (version 2561) defaults to usage of a blue-colored way segment. In the JOSM wireframe view, there is no distinction between bridge and non-bridge way segments.

See also