Abstract
An important condition when arranging high-speed railway transportation with insignificant traffic is saving of capital investments in construction of new lines or the reconstruction the existing ones. Development of methods for multi-criteria estimation of the possibility of using fully single-track blocks on a line with high-speed traffic, as well as single-track blocks with double-track inserts, is a relevant issue. The purpose of the study is to develop the criteria and the method for estimation of the feasibility of using single-track elements on a line with high-speed traffic. Methods of simulation modeling, mathematical statistics, regression analysis were used. A method that includes estimation of the technological conditions of using single-track elements on a line with high-speed traffic instead of double-track blocks was developed. The method can be used for multi-criteria optimization of the configuration of a combined single-track and a double-track line using single-track elements in high-cost areas.
Highlights
One of the most urgent tasks that railway transport faces is the need for a planned increase in traffic speeds, introduction of high-speed transportation in both passenger and freight traffic [1]
The model takes into consideration the structure of missed train traffic, the difference in speed, the duration of occupation of the element, the delay of trains on the approaches and the costs associated with the slowdown in passage of trains
The results obtained confirm the possibility of using single-track elements on the lines with high-speed train traffic
Summary
One of the most urgent tasks that railway transport faces is the need for a planned increase in traffic speeds, introduction of high-speed transportation in both passenger and freight traffic [1]. The lines intended for high-speed traffic are designed to be double-track This is due to a significant passenger flow, which requires high intensity of traffic of high-speed trains [3]. In a number of countries in Eastern Europe, Central Asia, South America, as well as in Russia, the volume of passenger traffic is insufficient for development of highspeed traffic under such scheme. In these conditions, creation of a high-speed railway system requires finding ways to reduce the amount of required investments [5, 6]
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