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pspahn t1_ixjntny wrote

What is so expensive? The device used where I live simply has a sensor that will change the lights based on an infrared code signaled to it by an emergency vehicle. Like a fancy remote control.


nowhereman1223 t1_iy7ywf3 wrote

That means the light system where you live has that built in from the beginning.

If it wasn't built in or the town has a fully networked Traffic Management System (which most cities do) you have to get the integration from the company that provides your traffic lights or something compatible with them OR get a whole new system.