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영어

Intelligent Transportation Systems (ITS) as part of the policy VMS(Variable Message Sign), while the prevalence of extended maintenance was a problem occurs. VMS(Variable Message Sign) display unit of a cover up/down adjustable side road and at the same time ensure the rotation, but for weight lifting for holding the display unit and the rotation for load bearing capacity and load support means to have a varying biaxial mobile guide signs support structures. VMS(Variable Message Sign) and maintenance of structures built or installed according to the security and safety of workers in the field improve accessibility, and these variable structure guidance signs of economic construction and maintenance costs and to promote administrative efficiency rotary VMS(Variable Message Sign), up/down has been granted the ability to develop support structures.