Cars spend 95% of their time parked

The Washington Post: "Parking is a major component of our driving experience. A large amount of our driving time is spent looking for a free spot, and our cars are parked on average for a staggering 95 percent of their lifespans. Parking infrastructure is so pervasive that for every car in the United States, there are approximately three non-residential spots — amounting to 5,000 square miles, an area larger than Puerto Rico."