Question
A train is standing on a station ready to leave. The train line out of the station is a single track line and it is
A train is standing on a station ready to leave. The train line out of the station is a single track line and it is also used by trains coming in the opposite direction. Several measures are in place to prevent the train from leaving the station while another train is coming in the opposite direction. The probability of the train leaving the station without the line being clear is therefore quite low, at 0.00002 per situation. The train driver and the train conductor will experience "Train waiting at station, ready to leave on average 12 times every working day and they are working 365 days each year. An average passenger will experience the same situation 3 times on each trip and takes 500 trips each year. On average, the train carries the train driver, the train conductor and 40 passengers when it is waiting to leave. The probability of a collision given that the Train drives out of station and line is not clear" is 0.6 and the probability of being killed given that a person is on a colliding train is 0.2. (a) What is the Individual Risk (IRPA) for the train driver and for an average passenger? (3 mark) (b) What is the PLL for train collision? (4 mark) (c) What is the average FAR-value for the train driver? Use 6570 working hours per year as exposure time. (3 mark)
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