Recent content by taepn

Hi, everyone In general, when refurbishing the station, how much the percentage of increasing demand that we expect?

Hi, everyone I am confused that the length of the platform is necessary to design to cover the whole length of the train (locomotive+carriage) or just cover only the carriage? for example, if the station was built to accommodate 12 car train formation, the operated train is 2 electric...

Thank you and if the currently service delay 20% , 30% of the cause of delay due to the failure of rolling stock, and establish RCM can reduce reliability issue 25% , how much of PPM increase? I think that is 0.25*0.3*20 = 1.5% is correct?

Thank you, and if I said that the RCM can reduce reliability issue 25%, it can be implied that PPM level is improved up to 25% ?

Thank you, and it does not involve the punctuality of train?

Hi, everyone I would like to ask you that how the establishment of reliability centred maintenance for rolling stock (RCM) can improve the Public Performance Measure (PPM) ?

Hi, everyone I would like to ask you that in the UK, what is the proportion of responsibility for the cost of signalling system maintenance between TOCs and Network Rail? In addition, the signalling maintenance cost is combined with the fixed track access charge or the variable track access...

Thank you, and how to identify the length of the marker block in ETCS level 2?

Can anyone recommend me about how to calculate the headway of two following train for the mixed traffic operation (intercity, regional, freight) when controlled by ETCS level 2 and ETCS level 3?

Sure, I am a student and now studying on tunnel construction but no experience in this field.

hello everyone, could you recommend the suitable shape of the railway tunnel to allow the train on double track dive under another train on above ground?

Yes, your thought is correct. I consider on the tunnel for the train dives under the above-ground railway.

Thank you, yes, I am not a native speaker. This post, it means the underpass tunnel.

Thank you, if I use gradient 1 in 50 for the underpass , is it possible? and what is the minimum height between the top of an underpass to above ground?

Hello, everyone I am a student and now studying in tunnel construction. I have some question as the following; - How much-recommended slope for access and egress and height of tunnel for the train with 125 mph of speed? - Could you recommend the method the build the tunnel for the double track?