Yap its a very long time, even with the jam on Mombasa road you hamuta wachana mbali. But That is the safest speed it can go because the rail is quite old, then its not grade separated there are numerous areas where it crosses roads and footpathsand then also lack of a proper signalling mechanism.I have never understood how a train with a right of way can take two hours to crawl from Lukenya station to Nariobi Central station a mere distance of 30Km. Something is terribly wrong. I bet its even faster to jog from Lukenya to Nairob CBD.
The train for Embakasi is quite fast these days clocks upto 60kph but they had to lay the track afresh and install fencing and barriers.