LAND TRANSPORT Road junction in cramped urban conditions

摘要

The invention relates to a road construction and can be used in the construction or reconstruction of nodes intersection roads on different levels, in close urban areas. The technical result is to reduce the width of the land acquisition and the volume of excavation, increased bandwidth and traffic safety, simplifying the design elements of underground and aboveground loop interchanges. Decoupling crossing at different levels of the main and secondary roads comprises main loop sector on secondary roads are made additional peripheral loop sectors, with the main and additional peripheral loop sectors arranged in a row along the additional axis of the road, symmetrically on both sides of the main axis of the road, while the left part of a series of sectors of the loop is rotated by 180 ° specular reflection of right-hand side row with respect to the axis of the secondary road. Left turn maneuvers and reversals are carried out through four tunnel passage on the lower level of the main loop and additional peripheral sectors. For a right turn exits the main and auxiliary road acceleration and braking are provided additional strips. 1 bp 1 ZP f BACKGROUND il.9, 1 - in Bull.