What does this sign indicate?

Explanation

Work Zones. Driving through a work zone can be challenging. Construction workers and equipment may be close to traffic. Vehicles may enter the road and cause unexpected slowing in these areas. Work zones can change the flow of traffic. Orange signs, lane markings, drums, cones, barricades, or flaggers will guide you safely through the work area. Slow down and pay attention. Work zones may have temporary speeds posted that apply whether or not workers are present. The work zone speed applies until you see a sign indicating the end of the work zone or another posted speed.