Design a traffic light for an intersection between EW Street and NS Blvd. It is known that NS Blvd has a lot more traffic than EW Street. It is also known that in the morning hours, many vehicles turn left from NS Blvd onto EW Street. There is a bike lane on EW Street, and there are many pedestrians on the sidewalks for both roads.

a) Write down a clear problem statement, making sure to specify every realistic assumption you make.

b) Consider and explain in English two approaches to solving the problem, one of them very simple, and another that is more complex.

c) Choose one of the approaches you considered, explaining your reasons, and the limitations and consequences of your solution, and draw the transition diagram for both the approaches.