Traffic guards, also known as traffic controllers and 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 use a variety of equipment:
Signal flags.
Signal hand sign; called stop/slow paddles in the United States, these are a sign that has 'stop' on one side and 'slow' or 'go' on the other side.
Traffic vest.
Helmet (or a hard hat); protecting the head from hazards.
In some cases, alternatives to human traffic guards are used for traffic control. Traffic guards may be assisted by Automated flagger assistance devices (AFADs) so that they can stay out of the roadway when directing traffic. Temporary traffic lights or yield signs may also be used as an alternative to human traffic guards.
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A parking enforcement officer (PEO), traffic warden (British English), parking inspector/parking officer (Australia and New Zealand), or civil enforcement officer is a member of a traffic control agency, local government, or police force who issues tickets for parking violations. The term parking attendant is sometimes considered a synonym but sometimes used to refer to the different profession of parking lot attendant. In the United States, even where parking meters are no longer used, the term "meter maid" is often still used to refer to female PEOs.
State police, provincial police or regional police are a type of sub-national territorial police force found in nations organized as federations, typically in North America, South Asia, and Oceania. These forces typically have jurisdiction over the relevant sub-national jurisdiction, and may cooperate in law enforcement activities with municipal or national police where either exist. In Argentina, as a federal country, each province has its own independent police force and its responsible of its funding, training and equipment.