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Thread: Portable traffic lights - photo

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    Supporting Member Toolmaker51's Avatar
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    Encountered those before, across Illinois, Texas, Ohio, Pennsylvania; typically where road work is going on, especially two lane roads and bridges. They'll divert traffic to one side while holding opposing cars in place, then switch to accommodate that line of vehicles. Some look centrally manipulated, others with signalmen at each end linked by 2-way radio.
    I'm sure there were accidents when manual signalmen were not in sight of each other.
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    Toolmaker51
    ...we'll learn more by wandering than searching...

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    Supporting Member Karl_H's Avatar
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    Quote Originally Posted by Toolmaker51 View Post
    I'm sure there were accidents when manual signalmen were not in sight of each other.
    I remember (before I was old enough to drive) that they would hand a flag to the last car let through. That would signal the guy at the other end to let the line waiting to start to move.



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