The on ramp traffic lights worked great in bigger cities, studies have proven it.

but they only work when used properly. Most people get lazy, and just dont stop and roll through the light, so in effect, they do nothing.

They started mounting cameras on the lights when i left Phoenix so they could give tickets to people who didnt stop.

Id like to hear the cost of the lights vs widening highways and see the data.

Someone said the traffic lights cost a couple million.