Close-up of the legs of a passenger walking along the safety line in the subway. Social Security of passengers.
Palabras clave
line,
subway,
platform,
railway,
station,
subway,
train,
transportation,
travel,
tube,
underground,
city,
danger,
motion,
people,
safety,
track,
traffic,
transport,
urban,
warning,
arrival,
arrive,
blue,
door,
modern,
public,
rail,
railroad,
speed,
england,
gap,
london,
mind,
signs,
britain,
yellow,
business,
capital,
carriage,
crowd,
departure,
express,
inside,
metropolitan,
moving,
passenger,
road
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