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3307.4 Warning Signs and Lights
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Warning signs and lights shall be installed to protect the public from the hazards of construction or demolition sites in accordance with Sections 3307.4.1 to 3307.4.3.
3307.4.1 Obstructions and Openings
Where a material pile or other obstruction, or an excavation, opening, or other hazard is located in or adjacent to a public way, such hazard shall be indicated by red flags or signs during daylight hours, and by red lanterns, red lights, oil flares, flashing beacons, lighted signs, or equivalent devices from sunset to sunrise. Such warning devices shall be located no more than 30 feet (9144 mm) apart.
3307.4.2 Dangerous Areas
In areas where special danger to the public exists, such as at vehicle entrances and exits, hoisting areas, points of storage of explosives or highly flammable material, or discharge ends of chutes, descriptive warning signs shall be provided. Such warning signs shall contain the word "DANGER" in prominent letters and, where in, or adjacent to, a public way, shall be illuminated from sunset to sunrise. Barricades and/or designated personnel shall be provided to the extent necessary to keep the public away from such areas or to guide them around the areas.
3307.4.3 Vehicular Traffic
Whenever any work is being performed over, on, or in close proximity to a highway, street, or similar public way, control and protection of traffic shall be provided by barricades, signals, signs, flagperson, or other devices, equipment, and personnel in accordance with the requirements of the Department of Transportation.
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