I would like to ask two questions about 2012 calculation
1) In question 1b signalling system determination, the calculation of 3 and 4 aspect headway is around 120 seconds and 90 seconds respectively. How shall I determine the choice of signalling system? Shall I base on the number of trains per hour between D and H? i.e. 5 trains per hour and so 3 aspects is a cost effective solution to fulfill the headway requirement.
2) for the re-entry time, is it mean the stopping headway plus the 5 minutes of layover time at B?
Thanks
1) In question 1b signalling system determination, the calculation of 3 and 4 aspect headway is around 120 seconds and 90 seconds respectively. How shall I determine the choice of signalling system? Shall I base on the number of trains per hour between D and H? i.e. 5 trains per hour and so 3 aspects is a cost effective solution to fulfill the headway requirement.
2) for the re-entry time, is it mean the stopping headway plus the 5 minutes of layover time at B?
Thanks