Ralph Blumenthal recently wrote an interesting and witty article for the New York Times focusing on how confusing parking can be in Manhattan:

The piece reinforced what we already knew: that parking has become a gigantic problem for commuters on a daily basis, particularly in a crowded metropolitan area like New York City. And the city certainly does not make it easy to understand. One of the main reasons we created PrimoSpot was to make parking less painful - to simplify the signs and regulations, and help people find parking more easily. Less driving, less wasted gas and time!