MOTOR ROAD AND METHOD OF OPERATION OF MEGAPOLIS HIGHWAY Russian patent published in 2003 - IPC

FIELD: road building. SUBSTANCE: invention relates to building and operation of motor roads. Novelty, according to proposed invention, is that overhead motor road is arranged along longitudinal axis of motor road and is made of at least eleven spans in length, and twinned in cross section, each branch for not less than four lanes for running in different directions and with side passages in low level at left and right side twinned overhead motor road for notless than two lanes in each direction. Novelty according to proposed method is that overhead motor road has straight-line and curvilinear sections in plan and profile. Section, straight-line in plan, is made of length equal to 0.52-0.64 of length of curvilinear section, and radius of vertical curvature is 4.7 - 5.3 -fold greater than radius of curvature in plan. Roadway of section, curvilinear in plan, changes through ramp into preportal section of motor road tunnel. Moreover, axes of at least two adjacent supports of span structure for one direction of movement within the limits of straight-line section of overhead motor road are made with displacement relative to corresponding axes of supports of span structures for opposite direction of movement with possibility of making at least one passage for transport crossing the road at angle other than 90^°. EFFECT: increased passage of traffic flows. 19 cl, 12 dwg