automatic

balustrade

capacity

carrying

chain

concept

construction

control

conveyor

device

distance

elevated

entrance

escalator

floors

flow

footpath

handrails

horizontal

infrastructure

mechanical

mechanism

metro

mobility

modern

movement

moving

passengers

platform

position

railing

ride

speed

staircase

stairs

steps

subway

technology

tourism

tracks

transport

transportation

travel

traveler

underground

up

upstairs

urban

vertical

walkway