California DMV Permit Test (Class C)Safe Driving PracticesMedium
You are driving on a winding mountain road with many blind curves. What is the most appropriate speed to maintain?
- ASlightly above the posted speed limit to clear the curves quickly.
- BA speed matching the flow of traffic, even if it feels too fast.
- CA speed that allows you to stop within the distance you can see ahead.
- DThe posted speed limit, as it indicates the maximum safe speed.
Show answer & explanationAnswer & explanation
Correct answer: C. A speed that allows you to stop within the distance you can see ahead.
On winding roads with blind curves, your safe speed is determined by your visibility. You must be able to stop within the distance you can see ahead, as there could be unexpected hazards (e.g., debris, oncoming vehicles, animals) around the curve.
Why the other options are wrong
- A. Speeding on blind curves is extremely dangerous and could lead to loss of control or a head-on collision.
- B. Following unsafe traffic flow does not excuse you from driving at a safe speed for conditions.
- D. The posted speed limit is for ideal conditions; winding roads with blind curves are not ideal.
Safe Speed for Limited Visibility
When visibility is limited (e.g., blind curves, fog, hills), drive at a speed that allows you to stop within the distance you can see ahead.
- This principle is known as 'driving within your headlights' at night.
- Posted speed limits are for ideal conditions.
- Always reduce speed when your line of sight is restricted.
Memory trick: If you can't see, slow down and be ready to flee (stop).