FIELD: road building; road with built-in rail; narrow gauge railroads. SUBSTANCE: road has groove 2 with fitted in rail 1 consisting of central beam part 4 with longitudinal chute 5 made on its surface to receive flange of rail vehicle wheel, and two side webs 6. Height of rail 1 is smaller than its width. Central beam part 4 is installed in groove 7 with clearance relative to its bottom and walls. Side webs 6 rest on road surface. EFFECT: roads for combined operation of motor and rail vehicles. 8 cl, 3 dwg
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