Reply To: May one use an escalator on shabbos?

See “Halachic Issues CommonlyEncountered During a Hotel Stay on Shabbat

and Yom Tov” Rabbi Joshua Flug (on-line) regarding the above issues. With the proliferation of motion detectors and surveillance cameras it will probably become necessary to adopt the lenient opinions insofar as public places and hotel rooms are concerned. Of course, in one’s own home one should be machmir.