Watching the exit from the Hurricane escapes via CARS, it amazes me that one cannot drive the "wrong way" during different times of day or emergency.
Witness Jarvis in Toronto, reverse directions when needed. Same as highway. 3 lanes both ways when one side has basically no traffice and NOT BEING USE.
Even some gaps are put on the highway and let car going "WRONG WAY" will help very much to exodus from an emergency or time of day to smooth out the flow.