[Tagging] Highway barrier

Dave F. davefox at madasafish.com
Tue Apr 14 10:04:05 UTC 2015

Those are stingers used to catch nefarious car jacking criminals or 
operate temporary road blocks in down town Baghdad. Are there examples 
of permanent ones? I'd have thought a more obvious barrier, such as a 
fence would be built if it were to be long term.

The 'one-way' spikes are often used in combination with lifting barriers 
so: barrier=lift_gate;spikes.

Dave F.

On 14/04/2015 10:45, Martin Koppenhoefer wrote:
> 2015-04-14 11:35 GMT+02:00 Dave F. <davefox at madasafish.com 
> <mailto:davefox at madasafish.com>>:
>     IMO oneway on the node is inconclusive as a node has no direction
>     & it should already be on the way.
> +1, but the spikes are oneway spikes, so I think we should have this 
> distinction at the top level (i.e. barrier-key). It is fundamental 
> that you can cross from one side and are hindered from the other. 
> There are also omnidirectional spikes like this type elsewhere: 
> http://www.indosoftcorp.com/image.php?pid=50 (that's a portable version)
> Cheers,
> Martin
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