Transportation in a Green St. Paul will reinforce wise land use to strengthen vital neighborhoods and encourage suburbs to become urban villages in their own right, rather than bedroom communities tributary to the city. Most travel to the center city will be by light rail. It will be supplemented by smaller and more numerous buses, serving areas of small business. Powered by electricity, hydrogen, or gas/electric motors, they will be quiet, convenient, and will reduce pollution and oil consumption. New technologies, such as PRT, which are still experimental, may be tested in limited, high-density situations. With periodic shortages and steadily increasing prices for gas and oil, reducing automobile use will become a necessity, and the stresses, wasted time, and choking pollution of traffic gridlock will be a thing of the past.