What must drivers do in a construction zone in Illinois?

Answer: C — Slow down and obey all posted signs

In a construction zone in Illinois, drivers are required to slow down and obey all posted signs. This requirement is critical for ensuring both the safety of construction workers and the drivers themselves. Construction zones often present unique hazards such as narrowed lanes, equipment, and workers present on or near the road. Signs are strategically placed to provide guidance on speed limits, changing traffic patterns, and other important information pertinent to that specific area. By reducing speed, drivers increase their reaction time to any unexpected obstacles or changes in the driving environment, thereby decreasing the risk of accidents. Additionally, obeying the posted signs helps to maintain order and safety in a potentially chaotic setting. It is important for all drivers to navigate these zones with caution to protect not only themselves but also the individuals working in those areas.