Like it sounds, speeding in a work zone means to exceed the speed limit in a construction area. Note that speeding in a work zone is not a separate offense from speeding. Rather, it is an added penalty for the underlying speeding charge. In order for an area of the road to become a work zone in Nevada, government workers (or contractors) must erect three things: 1) A sign located before the beginning of such an area stating “DOUBLE PENALTIES IN WORK ZONES” to indicate a double penalty may be imposed pursuant to this section; 2) A sign to mark the beginning of the temporary traffic control zone; and 3) A sign to mark the end of the temporary traffic control zone. Note that Nevada law also levies extra penalties for speeding in a temporary traffic zone, which do not have the same sign requirements as work zones. Instead, temporary traffic zones are either: Pursuant to an emergency which results from a natural or other disaster and which threatens the health, safety or welfare of the public; or On a public highway where the posted speed limit is 25 miles per hour or less and that provides access to or is appurtenant to a residential area.