One of the more frequent term projects at my local university is an optimization study of traffic lights. Students collect and analyze data and propose optimizations to the local city council which refuses to act on the data due to opposition from businesses. These businesses do not want smooth and efficient traffic flow. They want to slow traffic down so they will get more customers.
My dad explained this to me in the 1950s during one of our family’s summer road trips.
Ever since Hurricane Ian the lights have never been right, it's like the only smart guy in the room retired a decade ago in that department.