Traffic lights in my area often treat all roads entering a junction the same. Some roads are busier than others but they get the same amount of time.
Wouldn't it be nice if traffic lights stayed green longer for more busy roads. Or perhaps they could have pressure sensors on the road that detect how many cars are queueing and adjust the amount of time they spend red and green to fit the conditions automatically. That would be very nice.
I wonder how much co2 that would save and if it would improve the traffic.
