use of sensors to detect the presence of vehicles. Now, construct a flowchart describing the algorithm for a smart traffic light controller, again for a four-way intersection, that maets the following specifications: - The light on the main road remains green until cars are detected at the red light on the cross street. - After cars have been detected waiting at the light on the cross street for Twc=1.5min, the light on the main road should turn yellow for Tym=5sec. - The duration of the green light on the cross street is Tgc=1min. - The duration of the yellow light on the cross street is Tyc=3sec