Chapter 3 Flashcards
What are the three primary controls?
The accelerator the brakes and the steering wheel
What does smooth, breaking accelerating and steering depend on?
Proper seat, adjustment, proper steering wheel adjustment, and hand position and proper positioning of your right foot in relation to the pedals
What is visual input?
The attention to driving and directed visual search significantly influence, the risk of being involved crash, and driving search for objects or conditions, or approaching your planned path of travel
How far should you direct your attention ahead and to both sides along your path of your vehicle in order to identify objects and conditions that could be hazardous
20 to 30 seconds
What is operating space and why do you need?
Operating space is space in front of to the sides of into the rear of your vehicle and it is used as a cushion
Space is one of the most important and effective things. A driver can give themselves to greatly reduce the risk of collision.
What does additional space give you time to respond to?
Hazards, weather conditions, and unexpected traffic variations
What is the visual control zone?
Planned path of travel, and is 12 to 15 seconds ahead.
It allows enough distance to make breaking steering corrections and response to most hazardous objects and conditions and to identify an alternative path if needed.
What is visual referencing
Relating some part of roadway to some part of the vehicle
Example right side road to right side vehicle
It’s used to help manage the space to keep around your vehicle
What are the most important factors in developing accurate space judgment?
Experience and visual referencing
Factors that may can influence the drivers perception of reference points are
Left or right eye dominance, driver, seat, adjustments, seat, height, drivers head movement and vehicle type and design
What is traction?
The grip between tires and road surface it allows drivers to steer brake or accelerate
What three things does traction depend on
Vehicle speed, tire condition, and roadway surface
What types of road surfaces reduce road traction
Sewer covers, mud, tar, paint or road markings, wetlands, loose, gravel, sand, dirt,Vinyl strips
What is hydroplaning?
With speeds as low as 35 mph and water depth of 1/12 of an inch tires can rise up on a wedge of water and you can lose control of vehicle
What is a crowned roadway?
Road that is higher in the middle than at the sides
What is a banked roadway?
Usually found at a curve it’s higher on one edge than the other
What are road shoulders
Immediate off-road areas on the left and or right sides of a road highway. They provide less traction and be cautious. If difference is 3 inches or more.
What does ABS stand for?
Antilock braking system
How does inertia effective vehicle when it enters turn too fast
It keeps the vehicle moving straight ahead rather than allowing it to turn
What is inertia?
The tendency to do nothing or remain unchanged
What does Nia cause objects inside the vehicle to do when a driver decelerates and brakes
Object and inside vehicle keep moving
What five factors influence, the force of inertia when driving
Sharpness of Turner curve, vehicle, speed, vehicle, size, height, and weight, roadway, slope, and roadway surface condition
How does kinetic energy affect a vehicle?
It impacts on how quickly vehicle can slow down
When a vehicle speed doubles from 20 mph to 40 mph how much more distance need to stop the vehicle
The distance need to stop the vehicle increases by four times
