Traditional intersections cause more accidents than newer designs such as a Double Diverging Interchange.
Traffic lights are not the best way to manage traffic as it causes people to rely on the light color rather than their surroundings.
We can no longer rely on traffic signals to manage traffic. Driver become unaware of the surroundings as they are focused solely on the color of the light and not the other vehicles around them. Many Miami drivers learn how to drive in other countries with less regulation and that driving style transitions to the US where traffic laws are commonly disregarded. I believe using traffic circles and double diverging interchanges will greatly aid in managing traffic flow proving to be safer and more economical for the city.