68 Chapter 4 — Your Driving Hazardous Driving Work Zones Examples of typical work zone signs: The “Flagger” sign warns drivers of construction or maintenance on the road  ahead where a flagger wearing an orange vest is stationed at the site to control  traffic. The flagger uses a “STOP/SLOW” paddle to either stop traffic or allow  traffic to proceed. When you see the “Flagger” sign, STAY ALERT and be  prepared to stop. Warning signs alert drivers of unusual features or conditions that they are  about to encounter. It is unlawful to drive a motor vehicle greater than the speed limit that is set  and posted while driving in a work zone. A highway work zone is the area  between the first sign that indicates the beginning of a work zone and the last  sign that indicates the end of a work zone. There is a penalty for speeding in  a work zone if a sign is posted at the beginning of the work zone listing the  penalty. This penalty is in addition to any other penalties for the speeding  conviction. A highway work zone can be easily identified by unique orange  warning signs immediately preceding the work zone. The orange signs with  messages in black letters are reserved strictly to identify work zones. In addition  to alerting drivers as they approach and enter work zones, black-on-orange signs  are used within the work zone to convey specific information and directions to  drivers as they travel through the work zone. that are on or adjacent to the road used by vehicles.  The work zone may or may not actually interfere  with the normal traffic flow, but it will usually  contain activities that may tend to draw the driver’s  attention or otherwise distract a driver from traffic.  It is very important to STAY ALERT in work zones  and to be prepared at all times to react safely to  unexpected conditions. A street or highway work zone warns of construction or maintenance activities 