Development of Automated Fallback levels of Disrupted Railway Operations

Abstract: Irregularities may be caused by many technical or operational reasons. In railway operation, there may be a failure of the interlocking system, a power failure in the overhead line, a technical fault in a level crossing, or other unexpected unpleasant effects may happen. However, railway operation must be continued in all cases. As some of the technical facilities do not work, train rides are carried out with written orders. This means “deviation from the regular mode”. The safety of railway operations depends on deviation from the regular mode mainly on the people involved. When facing with the challenge the solutions must be developed in order to carry on autonomously in case of deviations from regular mode. The autonomous system must therefore also be able to take the correct measures even in the case of deviations from the control mode. In this work, the associated procedures in fall-back level under the ATO system are described for selected faults from the railway operation. By means of data collection, the possible faults in railway operation were first collected. Afterwards, the impact on the farm was analysed and today's fall-back level were described. In the further step, today's procedures were transferred to the future ATO system and described using a UML diagram. The necessary modifications for the ATO system were developed. The comparison of today's approaches and those under the ATO system shows that for the system, considerableamounts of new components must be invested in the future. In addition, it has been shown that some tasks cannot be transferred directly to the ATO system by the train driver. These measures have not yet been carried out, but the logic of the measures has been mentioned in this work. They can be simulated first and then applied in reality