One company aggressively seeking new bids, internationally, to build such a project, is called Bombardier Transportation. They’ve built several beautiful Monorail systems around the world and have provided beautiful carriages for their passengers to enjoy.
Bombardier makes a very nice monorail system.
But Ulan Bator should make sure the route extends to Chinggis Khaan International Airport.
That way they'll avoid the mistake that Las Vegas made.
You should move to Ulan Baatar, Willie. They’re advanced—they’re getting a MONORAIL! Not to mention the side benefit of not seeing so many train posts from you.