Two-tier mobility
Illustration adapted from the book Near to Far by Dan Sturges. Modified with author's permission. By Steve Price The concept of “two-tier mobility” attempts to impose discipline on America's mobility habits, but in a way that acknowledges the value of full-size cars while being more discerning about their use in daily living. Tier 1 vehicles are bicycles, scooters, mopeds, neighborhood electric vehicles (NEVs), and an emerging class of small, autonomous shuttles transporting 8 to 12 passengers at slow speeds. Over 71 percent of travel in America is within a radius of 8 miles or less. This sweeps out an accessible area of over 200 square miles, depending on geographic constraints. Within this nearby but generous zone, seeking out a freeway for travel doesn't save much time. Some Tier 1 vehicles, such as e-mopeds and NEVs, can easily handle traveling 8 miles and back. About two-thirds of travel is 5 miles or less, which is easily done by bicycle. At 12 to 15 mph, that would ...