Proposals have been made for laying the route in areas of prolonged ascent and descent to reduce electricity consumption. The main traction-energy indicators are determined. Conditions have been set for reducing energy and operating costs. The results can be used in the design of railways.

The analytical dependences of electric energy losses on average track section gradient values, train mass and freight traffic density are determined.

This article is dedicated to the determination of transportation intensity influence on deterioration of infrastructure by the analysis of railways functioning inUkraine.

The greatest number of restrictions is related to the parameters and condition of curvilinear track sections. The technique for determination of cost of reorganization of curves at introduction of high-speed traffic for difficult sections of the track plan is developed. The law of work scope change depending on methods of the curve reorganization is established: expanding an existing track bed, adding a new track bed to existing one or shifting a track bed to a new route.

Research results of losses of the railways, related to weights of cargo trains, at occurrence of traffic speed restrictions on abrupt long up-grades are presented.