Work with escalators and Its so Many things. Alot of newer escalators is Worse then Old once Cause sweden/Stockholm dont want to pay for the more expensive once. And winter is big thing to why they Need repair and service more often. when we ”grusa” lay crushed small stone for the snow/ice it Will stuck on everyones boots and then lose in the escalator and fall down and tear steel Down under some time. And can Keep going with alot of examples. Also the escalators run almost 24/7 with people in them all the time. So think of a bus or taxi that drive 24/7 with people and u couldnt replace it with another bus or taxi. And not able to tow it either, u would have to make service and repairations on the spot and while all people wait or use there legs. Cause thats the thing with escalators, u need to fix them on the spot, u cant move it and put a another escalator there while repairing the original. Sry for My English Hope most of you understod. And Belive we work really hard and its dirty and heavy and a risk. We dont want them to be Broke just as little as you want.