@yekeyeke;
Cool down bro/sis. The problem with insults is that they tend to cover the good points. And you do have some good points...
The people of Thika road can ride in Trains if the carriages are comfortable, clean and run on a reliable timetable. In fact, the trains don't have to be the "High Speed" kind in order to "out-run" the dilapidated Matatus that the people use. Don't forget that there are no traffic jams on the railway line - cars must stop to let the train pass.
Yes; I have ridden in a comfortable train. This was the "InterCity 125" of the UK way back in the 1980s. It had two claases [1st for the rich and 2nd for the common Mwananchi]. If you do go to the UK, try it... these days the call it "Class 43"
No; I do not feel that the bypass money should have been spent elsewhere.
No; I did not study economics in school at any level. However, I do know that the phrase "transport infrastructure" includes railways, airports etc. Oh; and roads as well!!
Amongst all these, roads are the most inefficient mode of mass-transportation of goods and people.
Nothing is real unless it can be named; nothing has value unless it can be sold; money is worthless unless you spend it.