When driving at night, what is the rule for determining a safe maximum speed?
Never "overdrive your headlights." You must be able to stop within the distance illuminated by your headlights.
List the four main types of conditions you must consider when determining a safe speed.
1. Traffic: The number and speed of other vehicles.
2. Road Conditions: The state of the pavement (wet, icy, rough, narrow).
3. Weather: Rain, fog, snow, wind, or dust.
4. Visibility: How far you can see ahead.
Why must you reduce your speed in heavy traffic?
To create a safe following distance and give yourself enough time to react and stop if traffic suddenly slows or stops.
When driving on a wet road, by how much should you typically reduce your speed?
Reduce your speed by \(5\) to \(10\) mph. It takes longer to stop, and there is a risk of hydroplaning.
What is hydroplaning and at what speed can it begin?
Hydroplaning is when your tires lose contact with a wet road and ride on a film of water. It can start at speeds as low as \(35\) mph.
When driving on a road with packed snow, what is a safe speed adjustment?
You should reduce your speed by half. Your grip on the road is significantly reduced.
How should you adjust your speed on an icy road?
Slow down to a crawl. On ice, your tires have very little traction, making it difficult to steer or stop.
Why must you slow down significantly when approaching a sharp curve or a hill crest?
To prevent your vehicle's momentum from causing a loss of traction and to ensure you can see and react to any hazards hidden by the curve or hill.
Besides curves, name two other road surface conditions that require a slower speed.
Gravel roads, dirt roads, narrow bridges, and roads with potholes or construction zones.
How does the presence of pedestrians or bicyclists near the road affect your required speed?
You must drive slower and be more cautious. The more people near the roadway, the higher the chance of someone making an unexpected move into your path.
You are driving in heavy fog, and your visibility is very limited. How should you adjust your driving?
Slow down significantly and use your low-beam headlights. If visibility becomes zero, pull off the road completely, stop, and turn on your hazard lights.
When driving in high winds, what particular dangers should you be prepared for?
Sudden gusts can push your vehicle sideways. This is especially dangerous for larger vehicles like trucks and RVs. Reduce speed for better control.
