The car-free solar city model was influenced by the work of Ebenezer Howard and Paolo Soleri, and more recently by the principles of new urbanism.
From a land use perspective, satellite cities and urban infill development are the best ways to accommodate population growth while preserving open space and farmland. The alternative is urban sprawl.
Satellite cities, like those that circle Stockholm, Singapore, and Tokyo, typically have a population ranging from 30,000 to 250,000. These planned cities are surrounded by greenbelt areas and are connected to the greater metropolitan area by an efficient rail system.
Satellite cities differ from suburbs, subdivisions, and bedroom communities in that they have municipal governments distinct from that of the core metropolis and employment bases sufficient to support their resident populations.
Theoretically, a satellite city could be self-sufficient, but what occurs in the satellite city/metropolis constellation is a pattern of cross-commuting, driven by housing costs and urban economics. The jobs/housing balance rarely yields a 50/50 directional split in travel flows; however, establishing mixed-use satellite nodes, similar to a necklace of pearls, with good land use management and rail transit services can go a long way toward achieving such balance...