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Full Version: Mock 2011 Exam Lx Question
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For the recent event at Walsall only one student gave an answer, but it was a good one. It isn't perfect, so don't take absolutely everything here as 100% correct, but it is the sort of answer you should be aiming to produce in the exam.

He has agreed it can be shared here to help others.
Actually he also experimented with a different form of presentation and so there is a "bonus extra" for this one.

The question was:
An automatic level crossing, i.e. one where the approach of a train activates the warning equipment at the crossing, is located on a double track, and is equipped with flashing road lights, barriers and an audible warning for pedestrians. Describe, with the aid of diagrams, the key features of the automatic level crossing, explain the configuration and the sequence of operation, and describe suitable timings. Be sure to include why the crossing is configured in the way that you describe and state how this contributes toward the safety of the system.
[15 marks]

If trains occasionally start from rest on the approach to the level crossing, how could the road closure time be optimised?
[5 marks]