Ключевые слова: airport, automatic, comfortable, electric, elevator, entrance, epidemic, equipment, escalate, escalator, glass, handrail, ladder, mall, metal, metallic, metro, movement, moving, pandemic, passage, physical distancing, prevention, protection, quarantine, railing, ramp, road, safeguard, service, skywalk, social distancing, stair, staircase, stairs, stairway, standing, station, terminal, transparent, transport, transportation, urban, visitors, walkway,