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The non-public railway line Bovanenkovo ​​- Sabetta will be the final link in the exit of the Northern latitudinal railway (Obskaya-2 - Salekhard - Nadym - Pangody - Novy Urengoy - Korotchaevo) to the Northern Sea Route, which will provide a connection between the general railway network and the shortest sea route between the European part Russia and the Far East.

In addition, the railway line is necessary for the delivery of goods and crews to the port of Sabetta, to the gas condensate fields of the Yamal Peninsula and for the export of liquid hydrocarbons.

Sabetta is a seaport on the eastern coast of the Yamal Peninsula. It is designed to transport liquefied natural gas and provide year-round navigation along the Northern Sea Route.

The project of railway approaches to the port of Sabetta included the following works.

As part of design and survey work:
• performance of field engineering and geodetic, hydrometeorological and environmental surveys (with completion of work in 2016), engineering and geological surveys (with completion of work on artificial structures in the winter season 2016–2017);

Khovrino is a junction railway station on the main line of the Oktyabrskaya railway.

The project was implemented as part of the program for the development of transport and logistics centers (TLC) for the period until 2020, which provides for the closure of a number of freight yards and the reconstruction of existing ones with subsequent creation. TLC in their place. The program is designed to create the most convenient conditions for the redistribution of goods for urban needs.

The design work at the facility consisted of two stages:

The construction of the Baikal-Amur Mainline (BAM) can rightfully be called a significant achievement of transport construction at the end of the 20th century. The specialists of Lengiprotrans were engaged in the design of BAM sections in different periods: Komsomolsk — Sovetskaya Gavan in the 1940s, Chara — Tynda in 1967–1984.

Justification of investments in the construction of a high-speed railway line Moscow - Rostov-on-Don - Adler (VSM Center - South) was developed by Lengiprotrans in 2013–2014. The project was implemented in order to substantiate the volume and timing of capital investments in the creation of a dedicated high-speed line. Pre-design and estimate documentation has been developed.

Implementation of the investment project of the HSR Center - South will ensure the achievement of the following social, economic and commercial goals:

The railway line Mga - Gatchina - Ivangorod - Kotly - Kalische is a section of the Oktyabrskaya railway passing through the territory of the Leningrad region. The road provides transport and economic links between the regions of the North-West and the Center of Russia with Estonia, and also serves the national economic transportation of the region of gravity.

The project for the comprehensive reconstruction of the Mga - Kalische route was developed by Lengiprotrans in the 1990s – 2000s.

The elevated express is a new type of passenger transport that provides rhythmic and uninterrupted movement within the urban transport network. It was supposed to solve transport problems in the southern part of the city, connecting the Krasnoselsky, Kirovsky, Moskovsky, Frunzensky, Nevsky administrative districts.

Balezino is a junction railway station on the Kirov - Perm line of the Gorkovskaya railway. It is a docking station between alternating and direct current.

In the Eastern park of Balezino station, Lengiprotransom designed the construction of two and lengthening of one track to ensure the formation and passage of transit trains of increased length (100 conventional wagons).

Privodino is a railway station of the Northern Railway in the Kotlassky District of the Arkhangelsk Region. In December 2004, an oil loading complex was built at the station.

Under the Lengiprotans project, the Privodino station was reconstructed to organize a railway loading station with a cargo turnover of 4 million tons of oil per year. Additional tracks were laid to ensure the reception of empty tanks, their supply to the railway tracks of the loading rack, the delivery of loaded tanks from the rack and their dispatch to the external railway network.

After the outbreak of the Great Patriotic War, the blockade of Leningrad and the cessation of traffic on a number of sections of the main passage of the October railway (the St. Petersburg - Moscow line), which ended up in the territory occupied by German troops, the need arose for a rockade railway.

"Lentransproekt" (1951 - "Lengiprotrans") worked out the options for the direction of the new railway line from the station Vesyegonsk of the Oktyabrskaya railway to the Kirov railway at different points of destination.