Talk:Tag:barrier=bollard

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implications

Resolved: Page is explicit, and the common-sense definition hasn't changed --achadwick 12:10, 26 April 2011 (BST)

Since its introduction, this tag has been redefined ([1], [2]) to imply foot=yes and bicycle=yes. Is this commonly accepted? If yes, it should not only be in the text, but also in the template. --Tordanik 18:49, 16 May 2009 (UTC)

It was merely not explicited at the origin, but it would be clearly implied by the commonsensical definition of bollard. Circeus 00:19, 17 May 2009 (UTC)

Ambiguity

Resolved: Clarified on the main page --achadwick 12:09, 26 April 2011 (BST)

The article reads:

By default access=no foot=yes bicycle=yes is implied. So tag who can pass the node.

The first sentence suggests that if "access=no foot=yes bicycle=yes" is applicable, I shouldn't have to add extra access, foot or bicycle tags. However, the second sentence tells me to add those tags. What's a simple soul like me to do? --Sybren 16:18, 6 July 2009 (UTC)

When bollars are in a row, notably in the middle of a road to delimit lanes, they imply also bicycle=no. But it's easy to distinguish: the tag will be added to a linear way: no crossing is permitted anywhere along the way. Generally they are fixed on the road along with a continuous line (or zebras) painted, and they are made in plastic (to limit dangerous impacts in case of accidents, because they are found when lanes are narrow, requiring slower speed; you'll also find most often explicit speed limitation trafic signals, and possibly other trafic calming across the road, and sometimes blinking traffic lights to signal a danger).
In this case however crossing by foot is still dangerous even if it may be tolerated: bollard raws rows should have a gap where crossings for pedestrians or bicycles is explictely permitted. Any motorcycle however cannot cross these bollard raws rows, simply because of the continuous line.
Bollard raws rows are built on roads where there's non eough width available to insert a trafic island and metalic barriers would be more dangerous (or would cause access problems for emergency vehicles that can still pass easily between bollards, just like they can, with extreme care, cross a continuous line or use as dead lane with zebras).
In summary: foot=yes and bicyled=yes are implied when this is just tagging a single OSM node on the OSM way for any highway=*. But foot=no & bicyle=yes are implied if this is tagging a OSM way (across the highway or parallel to it, or on the hyshway way itself) or even any surface (any closed way or any relation with way members forming closed rings). — Verdy_p (talk) 22:17, 10 March 2017 (UTC)
I think you are wrong here. Bollards are usually used orthogonal to the way. Google some images.
What you call bollard row (actually bollar raw) is not ment to be tagged by this tag. Chrabros (talk) 02:13, 11 March 2017 (UTC)
no, it's really "row" (i.e. the alignement, like rows and columns in data tables or in checkboards), not "raw" (i.e. rough, irregular, unsurfaced, unaltered, pure, original, natural, unmixed; for example: statues in raw blocks of rock, or tables and chairs made in raw wood) ! — Verdy_p (talk) 02:58, 11 March 2017 (UTC)
these are barriers exactly identical: they can block a way, or limit it all along. They are absolutely not different. Please Google images yourself, you'll see they are exactly the same (with all the variations possible) and their role is also to block vehicles to enter another way; orthogonal or parallel does not change their nature, just like we don't distinguish walls along a road blocking access on the otherside, from walls barring a road however most bollards between lanes in the center of roads are generally in plastic for flexibility, but plastic bollards are also very commonly found as barriers across ways; they may also be static or raisable with remote control! You can find parallel bollar rows delimiting a narrow lane through a large pedestrian square plus transversal (raisable) bollars on both ends of this lane to control times where the lane will be open or closed, and some raisable bollars along the parallel bollar rows to allow emergency services to enter the pedestrian square. These are not different if they are along lanes or across them. — Verdy_p (talk) 03:15, 11 March 2017 (UTC)
I am not calling it raw. You are. Read your previous post. Chrabros (talk) 03:05, 11 March 2017 (UTC)
Reread yourself!!! This is you that wrote "What ... call bollard row (actually bollar raw)", but this is exactly the opposite !!!! — Verdy_p (talk) 03:15, 11 March 2017 (UTC)
You are really funny. You wrote "bollard raw" three times in your comment above. Chrabros (talk) 03:55, 11 March 2017 (UTC)
And you wrote "is not ment" [sic] instead of "meant" (for me in French, "ment" actually means like "lie"/"falsehood"/"tale"/"fib"/"fable" in English)... If you think it's useful to reply such bad comments about typos when your comment contains its own new typos but also (worse) new contradictions... — Verdy_p (talk) 04:04, 11 March 2017 (UTC)

Automatic, "Rising" Bollards

Rising bollard

Some bollards retract into the ground automatically, either in response to a key system or on a timer[1]. A couple of schemes have emerged for representing this, though neither is was in particularly widespread use at the time of writing:

  • Tag as above, and add bollard=rising. 44 uses as of 2011-04-26[2].
  • Tag as above, and add automatic=yes. 29 probable uses as of 2011-04-26[3].

The bollard=* scheme is more extensible, and is probably the better tag. TODO: suggest some other values, or use a Taginfo box to refer readers to a dynamic list.

What about bollard=fixed for example the stumps of concrete, and bollard=removable for those that can be manually removed/lowered (usually a key is needed) for authorised access. --User:LastGrape
Sounds good to me. Let's discuss possible values over at Key:bollard. There was just enough usage in the db to justify a descriptive wiki page (with a taginfo box), and automatic=yes doesn't really seem to have caught on. --achadwick 20:10, 2 March 2012 (UTC)
  1. http://en.wikipedia.org/wiki/Bollard#Movable_bollards
  2. http://taginfo.openstreetmap.org/keys/bollard#values
  3. http://taginfo.openstreetmap.org/keys/automatic#keys

barrier=bollard_row

like tree_row can we have bollard_row to add way to indicate that in this place ther's lot of bollard? -Yod4z (talk) 09:12, 28 March 2015 (UTC)

Just draw the barrier=bollard as a way.--Jojo4u (talk) 11:48, 10 May 2016 (UTC)
I agree. It may even be a closed way (e.g. all around a park or fountain), not implying any surface. Individual bollars are small and this tack is not meant to represent larger obstacles such as blocks or debris.
For this reason I add another implied value area=no. — Verdy_p (talk) 00:54, 29 March 2017 (UTC)