Patent ID: 7473050

Claim:
An interchange overpass comprising a main road ( 1 ); an intersected road ( 3 ); one or more U-shaped semi-circular roads ( 24 ) each having an inner semi-circle road ( 4 ) and an outer semi-circle road ( 5 ); one or more connection platforms ( 23 ); one or more right on-ramps ( 9 ); and one or more common roads ( 7 ); wherein said main road ( 1 ) is connected to said U-shaped semi-circular roads ( 24 ) by said right on-ramps ( 9 ), said common roads ( 7 ), and optionally said inner semi-circle road ( 4 ); said intersected road ( 3 ) is connected to said U-shaped semi-circular roads ( 24 ) by said connection platforms ( 23 ); and said connection platforms ( 23 ) are connected to said U-shaped semi-circular roads ( 24 ) and said common roads ( 7 ).