[enntwo]

Do you refer to the long flat ones at airports as lateralscalators, forwardscalators, or orthangonalscalators?

[shaunxcode]

I think we can both agree that frontscalator makes more sense.

[jodrellblank]

I think transcalator fits together more nicely.

(Edit: or maybe flatscalator)

[isleyaardvark]

I think parallelscalator has a nice ring to it.

[ramchip]

Some are concurrent, but hardly all of them!

[jodrellblank]

Since you must go on one then the next: serialscalators?

[billybob]

Unless you like to ride it facing the wrong way. Then it's a backscalator.

Or is that the one going the other way?

[prawn]

Excuse the serious response for a sec, but they're 'travelators' for those who are unsure.

[Semiapies]

Or conveyors.

[po]

peoplemover

[po]

jetsonator

[Groxx]

I sort of like orthogonalscalators, because it's huge and people seem happy to abuse "orthogonal". Plus, it brings strange things to mind when you mention that there are two or three of them in parallel...

[DanielStraight]

I'll have to admit, I've never thought about that. I like the suggestions given so far though.

[nitrogen]

Why not simply "sidescalator"?