Equipment
For a train speed optimization system to work, it is necessary to have a signalling system which is capable of displaying several different speeds, for instance 40, 60, 90 km/h and the full line speed, which also requires an train protection system that is able to handle these cases (cab signalling may replace these installations). Further, the track must be equipped with inductive loops that detect the presence of trains with sufficient precision (or other means of detecting the positions of the trains). Finally a computer system is needed that is able to reasonably predict the movements of the trains for the next few minutes.
Read more about this topic: Train Speed Optimization
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