THE RESEARCH OF DURATION OF FREIGHT TRAINS MOVEMENT BETWEEN THE TECHNICAL STATIONS OF RAILWAY DIRECTION

Abstract

One of the key problems of railway transport functioning is timely delivery of goods to the customers of transport services while ensuring efficient use of the rolling stock. One of the important components required to solve this problem is to obtain qualitative forecast about the freight trains movement between the technical stations, as it allows to plan as railways’ operational work on processing wagons flow as well as organize effectively its interaction with cargo owners. For exact forecast of the trains’ arrival is necessary to define the main factors that affect the value of the duration of train movement between the technical stations of railway direction, nature of this influence. For conducting research were obtained data of the duration of freight trains movement from ACS FT UZ-U database on the railway direction Sinelnikovo-I - Nizhnedneprovsk node - Pyatikhatki. As a result of statistical data processing, it was determined that the random variable of the duration of the train movement obeys the logarithmically-normal distribution law; this hypothesis was tested and confirmed using Pearson criterion. It has been suggested that the duration of train movement is influenced by such factors: the time departure of the train from the neighboring technical station throughout the day, day, month, the train’s mass and the locomotive type. Quantitative assessment of the degree of connection between the duration of the train movement and each indicated factor was made using correlation analysis. It was found that seasonality has a significant effect on the movement duration, ie departure month, day of week and time of departure of the train throughout the day have moderate effect, and the train’s mass and the locomotive type have weak influence