I had never seen nor heard of those. We do have a few new flashing
amber only signs at some pedestrian crossings, particularly MUP
intersections. HAWK sounds complicated, I don't think most of the
drivers I deal with would intuit the whole flashing red thing on the fly
(I'm not sure I would either). Turn arrows seem to befuddle quite a
few.
Not to mention, after HAWKing each crossing, you must be about 75% of
the way to a signal controlled intersection. In my uneducated mind, the
hierarchy in terms of speed, throughput, and complication is:
1. Uncontrolled intersection
2. Stop/yield sign intersection
3. Multi-way stop intersection
4. Rotary
5. Signal-controlled intersection
6. Freeway interchange
IMO rotaries are usually improvements on multi-way stops, but they don't
do well replacing large multi-lane signal-controlled intersections. I
have seen small rotaries replace intersections on less-traveled streets
primarily for traffic calming, which also seemed an improvement.
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