You could add an arm that was fully lighted and flashing and they would still be knocked down. For some reason some folks seem to disregard the fact that as a continually aging community there will always be folks who forget the gate arms are there, are distracted or to blind to notice.
A gate arm that had a pressure hinge and when hit released the gate arm to fold back would solve many issues, but the cost would be high and I've a feeling that the cost of the cheap aluminum ones prevents any real change.
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