ahhhhhhhhhh, you mean "moving sidewalks"

But what on earth do you refer to as a door? Do you mean the entrance gate or turnstyle?

However with respect to the moving sidewalks I get pretty irritate. There are those who have no clue how they work and the etiquette involved in riding them. It works like two lanes on a highway; one for slow traffic and the other for passing. It never fails that some arse decides to stop with all their luggage on the left hand side of the walkway (or esculator) blocking the flow of the traffic of those walking upon it. The proper etiquette when riding such things is to use the right hand of the moving machine to stop so as not to block those who wish to walk and pass. Also don't be a moron and block the entire walkway with your luggage and bags. Expect an angry barb at you for doing so.

With that said, yes I use the moving side walks. When it comes to escalator Vs stairs? Unless the stairs have open risers I opt for them over the escalator. I am always scared of getting on and off the moving stairs. It is embarrassing.