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    <div class="moz-cite-prefix">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.<br>
      <br>
      The 'one-way' spikes are often used in combination with lifting
      barriers so: barrier=lift_gate;spikes.<br>
      <br>
      Dave F.     <br>
      <br>
      <br>
      On 14/04/2015 10:45, Martin Koppenhoefer wrote:<br>
    </div>
    <blockquote
cite="mid:CABPTjTAM8aPp1mb0=6QOVde0G0x-ygPO7DpTSdQ=71q==0AzYw@mail.gmail.com"
      type="cite">
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        <div class="gmail_extra"><br>
          <div class="gmail_quote">2015-04-14 11:35 GMT+02:00 Dave F. <span
              dir="ltr"><<a moz-do-not-send="true"
                href="mailto:davefox@madasafish.com" target="_blank">davefox@madasafish.com</a>></span>:<br>
            <blockquote class="gmail_quote" style="margin:0px 0px 0px
              0.8ex;border-left:1px solid
              rgb(204,204,204);padding-left:1ex">
              <div>IMO oneway on the node is inconclusive as a node has
                no direction & it should already be on the way. <br>
              </div>
            </blockquote>
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          <br>
          <br>
        </div>
        <div class="gmail_extra">+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: <a
            moz-do-not-send="true"
            href="http://www.indosoftcorp.com/image.php?pid=50">http://www.indosoftcorp.com/image.php?pid=50</a>
          (that's a portable version)<br>
          <br>
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        <div class="gmail_extra">Cheers,<br>
        </div>
        <div class="gmail_extra">Martin<br>
        </div>
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      <br>
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      <br>
      <pre wrap="">_______________________________________________
Tagging mailing list
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</pre>
    </blockquote>
    <br>
  
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