Abstract
The operating conditions of locomotives and rolling stock are considered when determining the optimal loading of dump cars under train starting conditions on a calculated gradient of 21,4‰, which helps justify the need for constructing new connecting tracks. The railway access lines of the Donskoy Mining and Processing Plant (Donskoy GOK) play a key role in ensuring the enterprise’s transport and logistics operations. The study highlights that the complex profiles of existing connecting tracks hinder the movement of loaded trains and contribute to increased wear of both track components and rolling stock. The importance of efficient infrastructure operation under difficult terrain and small-radius curves is emphasized. Donskoy GOK is one of the world’s largest enterprises for chromium ore mining with an extensive mineral resource base. The paper reviews the prospects for the development of the plant’s railway infrastructure within a five-year plan. It concludes that improving the track infrastructure is essential to enhance transport efficiency and ensure sustainable production growth.