Inventor Dean Kamen sought to develop a zero-emission method of transportation that relied on "dynamic stabilization," and was easily maneuverable, space-saving and operable on sidewalks.
The Segway has only two wheels, but is self-balancing. The rider leans slightly forward or backward to move in the desired direction, and directs the steering frame left or right to turn. Segways have a beginner setting of 6 mph, and a standard setting of 12.5 mph.
According to the Segway website, a Segway is 11 times more efficient than the average car, and more than three times as efficient as a high-mileage scooter.
The Segway PT relies on electricity to recharge its battery. A single charge lasts for approximately 24 miles of travel.
Owners can use Segways for short commutes and also indoors in many stores, offices and airports. Some police departments use specially designed Segway models for community patrols. Tourism offices have also embraced Segways, offering visitors tours of attractions using Segways as the mode of transport.