$[$Logic $3]$ Define a red$-$light waiCng sequence $($do not include the other light states$)$ with a

request to walk bu$^$on and a car sensor$.$ Determine the red light duraCon if the following

duraCons are applied to the other light states: Green$=50$ sec$.,$ Amber$=20$ sec$.$ write a pseudo code $.$ Request$-$To$-$Walk Bu$0$on

A bu$^$on is provided for pedestrians to press to alert the system a person needs to cross. This is

only effecCve when the lights are in a red$-$light state. This request will reduce the remaining

wait Cme of the red$-$light state to $10$seconds$.$

Car Sensor

There is a sensor mounted on the light fixtures that monitors the number of waiCng cars when

in a red$-$light state. When the number of cars waiCng reaches $5$or more, the sensor will trigger

the system to reduce the remaining wait Cme of the red$-$light state to $10$seconds$.$