In 1951-1955, Lengiprotrans developed a project for a new railway line Ekibastuz - Irtyshskoe. The line was to become the southern part of the Omsk - Bessarabka (Irtyshskoe) - Ekibastuz highway. However, the survey and design along this line ended with the design assignment stage.
In 2013, Lengiprotrans provided engineering and consulting services for adjusting the feasibility study (FS) for the construction of a high-speed railway line (HSR) Astana - Almaty in Kazakhstan.
The feasibility study institute's adjustment mainly consisted of working out technical solutions for a maximum speed of 250 km / h. The specified parameters are more precisely defined: travel time - 5.5 hours, the number of trains - 6 pairs of trains per day, a single-track railway station with double-track inserts.
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.
In 1984-1985, Lengiprotrans participated in the design of the Klaipeda-Mukran ferry crossing to ensure transit traffic between the USSR and the CMEA countries (Council for Mutual Economic Assistance). Within the framework of the project, in 1985, the production base of the Balttransstroy trust was designed to organize the construction of a ferry crossing.
The Daugavpils railway junction is a large junction of the Latvian railway that emerged in the second half of the 19th century.
For many years "Lengiprotrans" has participated in the design of the objects of the Daugavpils junction. In 2012, the specialists of the institute prepared pre-design studies for the development of the railway junction.
In the 1980s, Lengiprotrans carried out design and survey work for the external railway transport to the phosphate mining plant in the Syrian Arab Republic. This was due to the need to transport phosphate rock. An album of split point diagrams was developed.
The Payuta - Novy Port railway line was developed in parallel with the Obskaya - Bovanenkovo line and is its branch at the Payuta station towards the Ob Bay.
The Payuta - Novy Port route was laid to the Novoportovskoye heavy oil field on the Yamal Peninsula. The oil reserves of this field have unique properties that make it possible to use it as a raw material for rocket fuel.
In 2006–2011, Lengiprotrans developed a project for a transport interchange along the section of Blanc-Menilskaya Street through the railway tracks of the Oranienbaum direction of the Oktyabrskaya Railway.
Main objectives of the project:
• expansion of the city's road network;
• elimination of traffic jams arising from the low capacity of the existing railway crossing;
• provision of a full-fledged interdistrict transport connection.
On August 25, 1951, the Council of Ministers of the USSR adopted a resolution on the construction of the Titan - Yokanga railway line on the territory of the Kola Peninsula. The line was planned to provide transport links between the ice-free port of Yokanga and the railway network and to create a naval base there. In addition, the railway would facilitate the development of aluminum ore deposits in the center and east of the Kola Peninsula.
In the early 1990s, Lengiprotans developed a project for a high-speed highway Finland (Luzhaika) - Leningrad. However, the project was not implemented at that time for economic reasons. A feasibility study was carried out for road repairs.
