What type of hazard may require you to adjust your speed significantly?

Adjusting your speed significantly is crucial in construction zones due to the unique and potentially dangerous conditions they present. Construction areas often involve lane closures, workers on the road, heavy machinery, and sudden changes in traffic patterns. These factors can create unpredictable situations for drivers, increasing the risk of accidents. Therefore, decreasing your speed allows for better reaction time and greater awareness of your surroundings, ensuring both your safety and that of the workers present.

In contrast, traffic signals typically require more moment-to-moment adjustments, but they do not usually necessitate a significant change in speed unless they are malfunctioning or there is an associated hazard. Pavement markings serve as guidance for how to navigate the road but do not usually require drastic speed changes. Roadside scenery, while it can be distracting, generally does not pose the same immediate safety concerns as construction zones and does not require significant speed adjustments.