That is relevant only if you live at the railway station in one city and work at the railway station in another.
However people who live 10-20 miles away from both stations will need to figure out how to get to and from those stations. If they take surface transit that will eat all the time savings.
It is also important to know how much the ticket will cost compared to the gas and car wear cost. Sometimes speed at any expense is not an optimal solution.
Plus, is there big demand to go from Merced to Fresno or Fresno to Bakersfield...
If not, is it stopping all along the way...
If so, it won’t get up to speed. Hope somebody is picking you up at either end
I also noticed that in the architect’s drawing all people are shown with no luggage. What is the chance that people moving around Central Valley aren’t carrying half a ton of stuff with them all the time? If they aren’t carrying anything, why they are even going themselves? Those trains seem to be useful only for office workers (and only those who can’t live near work.)