An agency that maintains a highway on which a work zone speed control system is deployed and the local police department or State police department that deploys a work zone speed control system may use Internet sites and other media to notify the public regarding: The general use of work zone speed control systems; or The segments of highways where and the dates and times when, work zone speed control systems may be deployed. A minimum of two signs approved by the State Highway Administration's Director of Traffic and Safety, alerting drivers to the possible operation of a work zone speed control system within the work zone shall be conspicuously placed in advance of each work zone speed control system. The positioning and spacing of these signs shall be as approved by the agency that maintains the highway on which the work zone is located. A device clearly displaying the speeds of vehicles approaching the device shall be placed sufficiently in advance of each work zone speed control system to enable an alert driver traveling at a speed not more than 25 miles per hour in excess of the speed limit to safely reduce the vehicle's speed to the legal limit prior to the location where the vehicle's speed will be measured by the work zone speed control system. The positioning of the device displaying the speeds of approaching vehicles shall be as approved by the agency that maintains the highway on which the work zone is located. A device that flashes when workers are present in the work zone shall be placed in advance of the first work zone speed control system in the work zone. The positioning of the device that flashes when workers are present shall be as approved by the agency that maintains the highway on which the work zone is located.