No offence but you are a bad statistician..
The whole logic of deciding the feasibility on the no of Hours saved for only a JAMMU-Trivandrum trip is totally hard to make sense.
You have to give proper weightage to traffic between two different points and then calculate the percentage of hours saved. And then maybe caclutate the weighted mean of these hours saved and then decide whether it is feasible..
In simple words, lets say it only makes 5 hours saving for a 50 hour journey from Jammu to Trivandrum and it saves around 4 hours for a 20 hour journey from Mumbai to Delhi, ( coz of less no of stops )
Hence ratios are .1 and .2
Also consider that 80% traffic is in mumbai corridor and rest travel in jammu corridor.
whats the saving done ? (.1x20 + .2x80) /100 = .18 percentage hours.
So, while you see only jammu corridor to be making not all that profit, even lets say barely breaking even while mumbai corridor will be highly productive notwithstanding the tremendous mobility option which would be added in addition to flights..
Hope it clears everything !!
bro
take any two points in India (I took Kashmir and Kerela as you cannot save more time then that)
now find out all the stops and the time train stops on those stops. Add this time up say its X.
now direct travel time for 200 km/hr is a and for 300 km/hr train is b (for the time train does not stops).
total for 200 km/hr train = a + x
total for 300 km/hr train = b + x
difference = (a +x)- (b+x) = a-b which cannot be more then 5 hours even if you go from Kashmir to Kerala (3000 Kms Journey Max possible).
Note:
when you say 4 hours will be saved from mumbai to delhi you are comparing 300 KM/hr train with present trains of 100 km/hr speed train. this comparison is invalid.
I want you to compare the time saving between 200 Km/hr train and 300 Km/hr train from Delhi to Bombay. if this is a journey of 1000 Kms. Then the time difference couldn't be more then 1.8 hours between 300 Km/hr and 200 Km/hr train. And that is why I am saying 300 Km/hr trains have no major time saving benefits. the time saving is negligible between 200 km/hr and 300 km/hr trains.
We do not such large distances as 10000 kms to travel for any appreciable time saving between 200 and 300 km/hr trains.
Only If the HSR would travel at 500+ Km/hr, only then it would make for some appreciable time saving benefit over 200 Km/hr trains.
for any 2 Particular Points in India:
500 Km/hr trains - 1000 Km journey - 2 hours ( + x hours for stops)
200 km/hr trains - 1000 kms journey - 5 hours (+ x hours for stops)
you save 3 hours.
500 Km/hr trains - 3000 (max) Kms Journey - 6 hours ( + x hours for stops)
200 km/hr trains - 3000 (max) Kms journey - 15 hours ( + x hours for stops)
you save 9 hours (max).