Ключевые слова: abstract, adult, anonymous, audience, big, blurred, business, busy, city, crossing, crowd, crowded, day, face, fast, group, hour, large, life, man, many, men, modern, motion, old, outdoor, outside, pedestrians, pensionary, pensioner, people, person, population, retire, retiree, rush, scramble, sidewalk, street, urban, walk, walking, women,