[yummyfajitas]

There are not enough resources to go around. How would you deal with it?

Allow prices to rise until people stop coming. For traffic specifically, impose congestion prices and raise them until the traffic reaches a reasonable level [1]. Allow the same process to occur with rents, food prices, etc.

Also, don't impose unnecessary regulations which would prevent construction to increase capacity.

[1] If the price is high enough, it will make financial sense to increase capacity.