The current trend toward the use of 3D concrete printing represents a vector for green financing of innovative transportation projects and a shift from traditional construction to additive manufacturing and a closed-loop economy. The potential impact of additive technology in the field of transport infrastructure is expected to be greater than in any other, due to the scale of construction printing and its environmental potential to ensure the environmental safety of transport construction at the global, regional and local levels, which appears to be a relevant interdisciplinary research area. The article analyzes the transition to a "green economy," including the introduction of additive technologies and the rational use of construction resources. The article gives proposals for energy-efficient and ecological green construction of high-speed railways and provides a rationale for the use of additive technologies using 3D-printed noise protection walls made of eco-concrete (green concrete, geo-concrete). The main recommendations on the choice of structures, optimal for the implementation of active noise protection measures on high-speed railways and artificial constructions are given. Presented the work of PSTU students of the Faculty of Transport Construction on the subject of 3D printing of noise protection panels with different acoustic performance. Modern architectural solutions were made with the preparation of a feasibility study on the implementation of innovations and the development of green design competencies.

This article explores the key lean and safe technologies used for unique transportation projects to expand highway infrastructure. Given today's digital requirements, there are trends to reduce time, cost, and safety, but all of this is possible by introducing several key innovations into the design and construction process. New lean BIM technologies, methods of adaptive flexible Agile-approach have completely transformed modern design technologies and with the application of safe work, methods allow not only to carry out safe reconstruction of transport facilities but also to act as a high-tech locomotive of the transport industry, capable of making a significant contribution of lean production for innovative development of the Eastern polygon. The main task of the reconstruction as a modern intensive ecologically safe production of construction works is necessarily considered with efficient resource consumption and nature management. The authors conclude that the reconstruction of BAM tunnels acts today as the main direction and sets a vector of innovation in the field of investment and innovation projects. Improvement of design activity and presented collective work of specialists of technical and economic specializations of PSUPS of two faculties in the field of tunnel reconstruction should be rightfully named as a prospective resource of economic development in the field of transport construction. The main project technologies under consideration in the innovation aspect: Agile+Bim, economic innovations on the choice of optimal strategy taking into account risk and uncertainty for scenario analysis by Monte-Carlo simulation method, technological innovations using the specialized technological complex for tunnel reconstruction.