train loading generator error in arrival time.

Question:

see attachment. There is an error in arrival time.
In Midas, Loading function is correct. The arrival time is not correct.  
First node of arrival time is 0 but second node must not be 0
Loading function is nothing to do with arrival time because starting time in loading function diagram is t=0.

Answer:

Hello,

Kindly refer to the attached sheet (Explanation).  Do let us know if further assistance would be required.
Based on your calculations, I can say that you are assuming the load to arrive with a "loading slope" on node 1.  But in fact, the load would be like an impact on node 1 and at the same time, it would have an upward slope for node 2.  Hence, the arrival times will ALWAYS be the same for the first 2 nodes.
Hope this clarifies the doubt.  Do let us know if further assistance would be required.

Regards,
Creation date: 5/13/2021 10:08 AM      Updated: 5/13/2021 10:08 AM
Files   
arrival time test.mcb
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arrival time check.xlsx
62 KB
Explanation.xlsx
58 KB