ROAD JUNCTION Russian patent published in 2011 - IPC E01C1/04 

FIELD: construction.

SUBSTANCE: road junction comprises crossing of motor roads arranged at different levels, includes the main overpass placed in the centre of the crossing on one of the motor roads, and forms four sectors in plan. In each sector there is a separated right-turn passage adjacent to crossing motor roads, a left-turn ring exit, diverting from one motor road in forward direction of traffic after the centre of motor roads crossing and adjacent to another motor road in forward direction of traffic to the centre of motor roads crossing, and also a loop passage diverting from the motor road, from which a left-turn ring exit arranged in this sector diverts, to a zone of disconnection of the specified left-turn ring exit from this motor road, and adjacent to this motor road after the specified disconnection zone. The left-turn ring exit and loop passage in each sector cross at different levels, and in zone of their crossing there is an additional overpass. In each sector there is an arched branch that branches off the loop passage, a branching unit of which is placed in the zone located inside the left-turn ring exit, radius of curvature of which is less than the radius of curvature of the left-turn ring exit, adjacent to the same motor road as the left-turn ring exit, and forming an additional ring exit with a part of the loop passage arranged in direction of traffic to the branching unit, and this exit is inside the left-turn ring exit.

EFFECT: reduced travel distance for transport, making a U-turn manoeuvre and right-turn manoeuvre from the zone located near the centre of motor roads crossing.

2 cl, 1 dwg