Designing and construction of new transport infrastructure objects in large megacities is caused by dense urban development, dense network of engineering communications and operating underground facilities. The location of stations and tunnelling of underground tunnels in such conditions is associated with an increase in the cost of construction and installation works. Special methods as well as the use of information modelling technology serve as tools to optimize the costs arising in the course of project implementation within a tight schedule. This is illustrated in the example of the construction of distancing tunnels from the station 'Klenovy Boulevard' to the station 'Kuryanovo' of the projected Biryulevskaya line of the Moscow Metro crossing the station 'Klenovy Boulevard' of the existing Big Circle Line. As part of the design, two options for the crossing were analysed: under the Klenovy Boulevard station of the Big Circle Line and, respectively, above the existing tunnel of the station complex. Thanks to the application of information modelling technology, the second option was chosen, where the route was modelled with coordinated information models reflecting the already implemented design solutions for Klenovy Boulevard on Big Circle Line station, as well as a fragment of the projected crossing between Klenovy Boulevard and Kuryanovo stations, passing over the technical inspection station. At the same time, the distance between the existing and under construction structures in the cross-section according to the adopted structural solutions will be no more than 1,7 m. It is therefore necessary to increase the bearing capacity of the soils and prevent possible deformations. To preserve the strength and stability of the soil massif, a part of the excavation is to be filled with expanded clay concrete in the tunnelling zone of the tunnel boring mechanized complex. The described experience reflects the practical significance of information modelling technology implementation in the construction of structures within the framework of dense urban development and creates an economic effect.