In what situation should you expect changing conditions while driving in a work zone?

The situation in which you should expect changing conditions while driving in a work zone is when the area is undergoing road construction. Work zones are specifically designated areas where construction or maintenance activities are taking place. During these times, you can encounter a variety of changes such as altered traffic patterns, narrowed lanes, reduced speed limits, and increased presence of construction vehicles or equipment. These factors create a need for extra caution as the environment can change rapidly, with potential hazards introduced that are not typically present in regular driving conditions.

In contrast, while bad weather might affect driving conditions, it does not exclusively relate to work zones. The absence of visible workers does not eliminate the presence of signs, cones, or other indicators that a work zone still exists, meaning conditions may still be hazardous. High-speed traffic can contribute to danger but is not a specific indicator of changing conditions related to a work zone. Therefore, the presence of construction directly correlates with a heightened awareness of changing conditions necessary for safe navigation through these areas.