Originally Posted by
ozflier
Thank you for your quick responses,
My preference is to take a train that originates from Lanzhou not one that stops there on the way from somewhere else.
Reports to me are that trains starting elsewhere are already dirty especially the toilets and often the cabin .
So that's why I'm on the lookout for the one train that has, in the past, starts at LHW.
You're gonna be on the train for 24 hours whether it starts in Lanzhou or starts elsewhere. Based on my experience, taking the train starting in Lanzhou will get you about 2 hours Max before things get dirty. Not worth being picky IMHO. Take the one with the best timing.