During which conditions is it particularly important to adjust your speed?

Adjusting your speed in specific driving conditions is crucial for maintaining safety. When driving in rain, snow, fog, or on unfamiliar roads, visibility and traction can be severely reduced. Rain and snow can lead to slippery surfaces, increasing the potential for loss of control and requiring a slower speed to maintain safe driving. Fog drastically reduces visibility, making it harder to judge distances and react to obstacles or changes in traffic conditions, necessitating a lower speed to ensure adequate stopping distance. Additionally, unfamiliar roads can present unexpected challenges such as sharp turns or reduced speed limits, making it vital to drive cautiously and adjust speed accordingly to prevent accidents.

In contrast, driving on dry and clear roads, in well-lighted areas, and when traffic signals are functioning properly generally provides optimal driving conditions where standard speeds can be maintained without significant increase in risk.