ANALYTICAL METHODS FOR THE COMPUTING TRAIN BRAKING DISTANCE IN THE SIEMENS I60 DEVICES

Abstract

Security in railway transport belongs to the highest priorities of every modern society and great efforts are being made to raise the level of railway safety on a higher level. The priority of every society is to provide quality transport service with safer traffic. The human factor proved to be the weakest point and a large number of railway accidents were occurred as a result of the failure of the human factor. In train controlling, modern techniques try to minimize the possibility of failure making by an engine driver. It has been done in a way of overtaking some of the activities that should engine driver has to do during the process of train controlling to modern devices that perform them instead. One such device is Siemens I60, which has the role of stopping the train in a case when engine driver passes the signal with a certain sign, and does not act according to the intended procedure. In this paper, the train braking diagrams for the adopted train category and different speeds are calculated and constructed and empirical methods are used to calculate the train distance with emphasized its advantages and limitations in their application. The collected data and the diagram illustrations indicating dangerous situations and numerous irregularities which occur during braking of trains. These are the causes of hazardous situations and discussed possible consequences of exceeding the prescribed train stopping distance. Conclusions were made for several characteristic hazardous situation during braking and suggested measures for mitigation and avoid of these situations in the future.