Traffic guards, also known as traffic controllers, traffic marshalls/traffic marshals or flaggers, are trained to set up warning signs and barricades to slow down the speed of traffic in a temporary traffic control zone. When they are on scene they will set up equipment to warn approaching traffic about the incident.
Traffic guards, also known as traffic controllers, traffic marshalls/traffic marshals or flaggers, are trained to set up warning signs and barricades to slow down the speed of traffic in a temporary traffic control zone. When they are on scene they will set up equipment to warn approaching traffic about the incident.
Source: Wikipedia "Traffic guard" · CC BY-SA 4.0
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