Various traffic control devices are used in road construction  and maintenance work areas to direct drivers and pedestrians  safely through the work site. Be prepared to reduce your  speed and use caution when directed to do so by a sign,  flagger, or law enforcement officer.  Failure to do so is illegal  and is dangerous to those working in the construction  zone.  (Signs will indicate where speeding fines will be doubled  when workers are present).  Construction and Maintenance Signs.  The signs—usually  diamond shaped and/or orange in color—notify drivers of  unusual or potentially dangerous conditions near work areas.  Channeling Devices  include barricades, vertical panels,  drums and cones. Stripes on barricades and panel devices  slope downward in the direction traffic must travel. These  devices alert drivers of unusual or potentially dangerous  conditions in roadway and work zones. These devices may be  equipped with warning lights at night time to guide drivers  safely.  Flashing Arrow Panels.  Used both during the day and at  night to give advance warning and directional information  when it is necessary to move to another lane.  Flaggers.  People who work in roadway construction/  maintenance zones to stop, slow, or guide traffic safely  through the area. Flaggers wear bright colored/fluorescent  vests or jackets and use red flags or signs to direct traffic  through work zones.  26  ©2020 Florida Department of Highway Safety and Motor Vehicles  Construction/Maintenance Signs & Signals 