[Tagging] Unremovable bollards

[Volker Schmidt]

Sorry to be insistent.
If we create more bollard attributes, we should keep in mind that the
relevant bollard properties from a car drivers point of views are very
different than those of a cyclist or of a blind person may consider
relevant.
*Flexibility*:
a soft flexible bollard will not do anything to a car. It will make a blind
person angry, and it may cause the cyclist to fall and be hurt from the
fall (not from the bollard!)
a hard flexible bollard (
https://sc02.alicdn.com/kf/HTB1u.VtKXXXXXXEXVXXq6xXFXXX4/Traffic-Safety-Black-Delineator-Concrete-Bollards.jpg)
will not doo anything to a slow Land Rover. It will make a blind person
very angry, and may cause impact injury to a cyclist plus injury from the
fall.
*Height*
a terrible solution are low bollards, they stop cars, but may cause fall
and injurayto any weak road user. The risk that you my not see them,
depending on the light conditions.(twovery bad examples:
https://www.mapillary.com/map/im/vWy2ZEEwavA7qCu0jiIyog,
https://www.mapillary.com/map/im/zp-X0Si_CCg2RijAoYX_hQ)
<https://www.mapillary.com/map/im/zp-X0Si_CCg2RijAoYX_hQ>
*Visibility*
Another aspect is poor visibility, especially at night (no reflective
marking, dark colour):
https://www.mapillary.com/map/im/t5VQYDJkjtR47IlvZw6g5A





On Mon, 17 Feb 2020 at 09:47, Martin Koppenhoefer <dieterdreist at gmail.com>
wrote:

> Am So., 16. Feb. 2020 um 21:54 Uhr schrieb ET Commands <
> etcommands at gmail.com>:
>
>>
>> My spelling check does not like "unremovable" but instead suggests
>> "irremovable."  However, if I want to be nit-picky, all bollards are
>> ultimately removable, so maybe more appropriate values would be
>> "retractable" and "non-retractable."
>
>
>
>
> if you look at the details, the situation may be quite different:
>
> - some may be (at least physically) folded (or pulled out) by anybody, no
> key or code required
> e.g.
> https://images.zufor.de/images/product_images/400x/umlegbar-selbstaufrichtend-zzobsozo.jpg
>
> - others may require a specific key (private), or a generic key (e.g.
> available to the fire department)
>
> - another variant are bollards that retract into the ground (hydraulically
> or pneumatically, maybe this distinction doesn't matter for us)
> e.g.
> https://5.imimg.com/data5/FD/EP/MY-1744683/hydraulic-bollard-500x500.jpg
>
> - yet another variant are fixed bollards, which may either be strong (e.g.
> not breakable with a standard car, at least not without breaking the car as
> well) e.g. https://de.wikipedia.org/wiki/Datei:Poller_auf_Buergersteig.jpg
>
> - or could be flexible or light or not restraint (i.e. more symbolic than
> physical) e.g.
> https://sc02.alicdn.com/kf/HTB1u.VtKXXXXXXEXVXXq6xXFXXX4/Traffic-Safety-Black-Delineator-Concrete-Bollards.jpg
> or
> https://sc02.alicdn.com/kf/Hbd2b0a9d420440ca94f0580be9e648b53/Queue-Management-System-Bank-Retracta-Belt-Barrier.jpg
>
>
> Cheers
> Martin
>
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