MUTCD 11th Edition (2023)
Section 6H.25 — Signs for Blasting Areas
Manual on Uniform Traffic Control Devices, Section 6H.25. Standards, guidance, options and support statements, with figures and cross-references.
Section 6H.25 Signs for Blasting Areas Support: 01 Radio-Frequency (RF) energy can cause the premature firing of electric detonators (blasting caps) used in TTC zones. Standard: 02 Road users shall be warned where blasting operations occur. A sequence of signs shall be prominently displayed to warn all road users of blasting operations and to direct operators of mobile radio equipment, including cellular telephones, to turn off transmitters in a blasting area. These signs shall be covered or removed when there are no explosives in the area or the area is otherwise secured. 03 The BLASTING…
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