Question:  How does a traffic signal work and why don’t I get a green when I’m on a motorcycle?

 

Answer:  The short answer is traffic signals work just like a person would who is directing traffic.  First it “sees” a vehicle that needs a green, then it provides the green.  Most traffic signals “see” with detector loops that are buried in the pavement.  These loops detect masses of conductive metal.  They detect large masses, like cars or trucks, very well.  If properly installed...
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