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Traffic Control Devices
To control the flow of traffic during construction, it's best to have signs posted for drivers to know what is coming up the road. Next, have cones to guide the traffic and an flag person ready to signal which flow of traffic can move.
A Traffic Guard, "Flagman", or "Flagger" is a person who directs traffic through a construction site or other temporary traffic control zone pass ...
Jack Bishop Humphreys has written: 'Identification of traffic management problems in work zones' -- subject(s): Control, Roads, Traffic control, Interference, Communication and traffic, Design and construction
Hand signals are to this day a legal form of traffic control devices.
It is true that signs and road markings are examples of traffic controls. Traffic controls include signal devices and signs that guide vehicle traffic and pedestrians.
It is illegal to disobey traffic control devices. It is not illegal to avoid them. Georgia's traffic laws are in Title 40 of the GA code. Most moving violations are listed in sections 5 and 6.
Yellow (and black letters or symbols) for "ordinary hazards"; Orange for hazards created by temporary construction; or Pink for hazards caused by emergencies in the roadway ahead. Under the U.S. Manual of Uniform Traffic Control Devices.
local, state and federal roads and highways, traffic control devices on the roadways, the drivers that use the roadways.
It means failing to obey any type of traffic control device (stop sign, do not enter sign, semaphore/stop light). If you received a citation for failing to obey a traffic control device it means you didn't stop at a stop sign completely, your drove through a red light, etc.