Sunday, September 4, 2011

The Loop Detector and the Arm Barrier

Friday I rode the new light rail.  It was slow as molasses.  We stopped at every red light.  There is a solution.  The crossing automobile traffic should flow continuously.  A loop detector on the track a block before the intersection can turn on the red light and lower an arm barrier when the train goes by.  That way, traffic will only be held up when the train approaches (every 15 minutes). 

Why didn't the engineers think of that?
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2 comments:

  1. jmac08April 20, 2012 at 7:20 PM

    Thanks for these posts! There was some traffic arm barrier similar to this one on a railroad here in El Paso. The sensor malfunctioned though and it slammed into my roof yesterday. I think the engineers need to go back to the drawing room! haha

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