A FULL INTERCHANGE URBAN ROAD SYSTEM AND THE TRAFFIC METHOD OF USING IT

摘要

The present invention relates to a full interchange urban road system and the traffic method of using it, characterized in that: the road system is a chessboard shaped double-layer road nextwork, one layer is motor way on the ground and another layer is footway at a suitable elevation accordingly over the motor way, or footways with proper width are located at each side above the two sides of motor way and the two side footways are connected cross with a passageway, or part of footway layer over an intersection of a collector street is constructed as ring pathway or aerial square. A turnaround passageway is designed between each two parallel expressways or under a separate type fly-over bridge arranged at a location the two expressways intersecting, a minor arterial is provided between each two parallel said expressways as a ramp for them and as a passageway leading to a subzone way. The system according to the invention makes pedestrians and vehicles be separated, a great deal of road occupation area be saved, and full interchange for the expressways' crossings be achieved so that a crisscross expressway traffic system is established in the whole city as well as the problem of channelization is thoroughly resolved.