You are the one full off illogical baseless statements based on misinformed guesses.
Nairobi expressway is a ppp, private investment that the government has no obligation to compensate if it gets a loss. Wewe ukifungua duka, ikose kupata faida, serekali ya Tz inafaa kukulipa? It is not a loan because no money is being given to kenya as debt, understand?
It seems clear you don't know Nairobi or have never been to Nairobi. Commuter rail does not run along mombasa road but goes from syokimau to eastlands and back to town. A very different path from the expressway. From GM to Westlands to james gichuru there is no railway coverage but you assume you know Nairobi and put a railway where it doesn't exist.
Kila mtu isipokua tz citizens mesmerised by govt PR knows Tz sgr is paid by loan from banks, very expensive loans.