Which of the following is not one of the three major highway conditions that require you to adjust your speed?

Which of the following is not one of the three major highway conditions that require you to adjust your speed?

• A. Time
• B. Visibility
• C. Traction
• D. Space

Answer: (A)

Speed should be adjusted based on conditions that directly affect your ability to see, to grip the road, and to react to the traffic around you. The three factors that require slowing down or adjusting your speed are visibility (how far you can see ahead), traction (how well the road supports braking and turning), and space (the distance you have to safely stop behind the vehicle in front of you). Time isn’t a road-condition factor you observe on the roadway, so it isn’t something that dictates how you should change your speed. For example, in low visibility you reduce speed to give yourself more time to react; on a wet or icy surface you slow down to avoid skidding; and with limited space, you also slow to maintain a safe following distance. That’s why time is the one that doesn’t fit with the three major highway conditions requiring speed adjustments.

Speed should be adjusted based on conditions that directly affect your ability to see, to grip the road, and to react to the traffic around you. The three factors that require slowing down or adjusting your speed are visibility (how far you can see ahead), traction (how well the road supports braking and turning), and space (the distance you have to safely stop behind the vehicle in front of you). Time isn’t a road-condition factor you observe on the roadway, so it isn’t something that dictates how you should change your speed. For example, in low visibility you reduce speed to give yourself more time to react; on a wet or icy surface you slow down to avoid skidding; and with limited space, you also slow to maintain a safe following distance. That’s why time is the one that doesn’t fit with the three major highway conditions requiring speed adjustments.