08-16-2017, 03:47 PM
(08-16-2017, 02:47 PM)NotStan Wrote:(08-16-2017, 11:19 AM)Markster Wrote: Current practice is to install redundant traffic lights, in case one malfunctions.
Is the danger posed by a failed signal higher than the danger posed by confusing signals? Debatable.
Thanks for the explanation. I think 2 lights each with an arrow for the left turn lane would be sufficient and would meet the redundancy requirement. The current configuration is a total eyesore.
I think the separate light is required for the fully protected left turn, which basically means you cannot turn left unless you have the green arrow. This is necessary because the trains will be proceeding through those intersections, and wouldn't be able to if cars were waiting to turn left.
But I agree the forest of lights is really excessive.