Three vertical traffic lights showing red yellow and green signals illuminated against a dark background
Schlüsselwörter
traffic,
light,
signal,
red,
yellow,
green,
stop,
caution,
go,
intersection,
road,
street,
driving,
transportation,
regulation,
control,
safety,
order,
direction,
guidance,
signalling,
illumination,
dark,
background,
vertical,
three,
set,
sequence,
cycle,
warning,
information,
command,
decision,
choice,
path,
movement,
city,
urban,
night,
contrast,
modern,
technology,
system,
symbol
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