Pillar type variable message sign installed on the highway and expressway service area square main lulu test or super grand prix display system, adopts the single mast or dual column installation. It is an important information release equipment of the highway monitoring system. According to the instructions of the traffic, weather and command and dispatch department, the monitoring and management center can timely release the traffic guidance information, weather and road conditions ahead, festival warm banners and other contents. Can be convenient and effective for monitoring management personnel to provide important information to drivers. And provide a variety of display and mobile mode, multiple information can be displayed alternately, mobile display speed Settings, display brightness automatic adjustment, up to 99 preset fixed display programs, simple and efficient call display.