$($Highway$)$ While driving home for the holidays, you note that your average speed of travel is about $60$ miles per hour. Moreover, the trafic report from the WXPN trafic chopper states that there is an average of $24$ cars going in your direction on a one quarter mile part of the highway. What is the flow rate of the highway $($going in your direction$)$ in cars per hour? $($Hint: we look at $1$ mile of highway as our process$)$