Buses, trollys, walking....but thats just the ones who worked and needed to be somewhere.
Even the ones who didn't work (and unlike some here I will continue to believe, until proven wrong, that most NO citizens had jobs and were not welfare leaches) would have had money for bus fare.
And if not, the Mayor could have made the buses free for special one-way trips out of town to the west and northwest. Somebody here has mentioned that the city did offer something like this but there were few takers.