Analysis and comparison of simulated and real train driving in an Automatic Train Protection (ATP) system environment

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Anders Lindström

This paper presents the differences between the train traffic simulation tool RailSys and real train traffic with focus on Electrical Multiple Units (EMU) and the Swedish automatic train protection (ATP) system ATC, on a single-track line. Braking, acceleration, different types of resistance and running times have been investigated. From this study it can be concluded that the margins to unconditional ATC braking is high and that the braking differs depending on the signal target. Compared to RailSys, the measurements show significantly lower acceleration and retardation, which results in differences between measured and simulated running time.This is the first step exploring how capacity, signal systems, and driving behaviour interact and will be followed by investigations of the next generation signaling system ERTMS.

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