Construction workers with reflective vests and helmets holding a stop sign to organize traffic. Risk prevention work.
Palabras clave
stop,
prevention,
risk,
roadsign,
construction,
warning,
car,
caution,
progress,
slow,
maintenance,
city,
pavement,
uniform,
roadwork,
urban,
steam,
man,
red,
orange,
transportation,
asphalt,
street,
effectiveness,
traffic,
protection,
machine,
cone,
signal,
industrial,
metal,
danger,
job,
concrete,
repair,
safety,
men at work,
equipment,
speed,
authority,
holding,
male,
management
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