Escalator at Emporium in Sukhumvit Road, revealing people going up and one with a backpack, empty going down, while a person is seen pacing while looking at this mobile phone, Bangkok, Thailand

escalator elevator stairs escalate moving electrical mechanical railing mall shopping center going up going down shoppers shopping travellers tourists stairway motor coaster pedestrian staircase handrail hotel office divider lift schindler reflections shadows conveyor modern tech emporium sukhumvit