primarily about saving time, for example, earlier it took 30 minutes to get from elektrozavodskaya to sokolnikoving stations 5 minutes, and you are already there from this moment. yes, only 10 years have passed in record time, because the construction of the subway in modern the metropolis is not easy. it was necessary to go to cross the existing engineering communications underground. plumbing. here is the disposal of the sewerage system of the gas supply communication system, heat supply, plus a dense building with a superstructure, we used and during the construction, which means that our geodesic mordshader service equipment, which, during the introduction of work, showed any possible deviations and if such deviations occurred. there additional either cementation. there, the pit was reinforced with a special fastening belt, in order to avoid any impact on the structure under construction and adjacent facilities, as well as groundwater and their underground rivers. in moscow, more than 150 , for example, a segment of 1050 m between the nagatinskiy backwater and klenovy boulevard passes under