INTRODUCTION TO EMERGENCY VEHICLE OPERATIONS Flashcards
COMPONENTS OF DRI VING FND . 2 0 1 0 . 1 0 1
The cadet will define the components of driving and vehicle control that establish foundational development for good driving habits, including the importance of using safety belts and other occupant protection devices.
♦ Acceleration and Deceleration
♦ Steering
♦ Acceleration and Deceleration
- Acceleration is necessary to reach the desired speeds
- Drivers make conscious adjustments in acceleration and deceleration
- Acceptable strategies and methods for acceleration listed below:
- Acceptable strategies for deceleration are listed below:
• Drivers make conscious adjustments in acceleration and deceleration
habits based on the following criteria:
Engine responsiveness due to gearing and power
Traction conditions – Dry or wet, surface condition
Roadway characteristics and design – hills, straight, curves
• Acceptable strategies and methods for acceleration listed below:
Acceleration and deceleration should be smooth rather than rough, sudden or aggressive
Acceleration or deceleration should be in direct relationship to the vehicle’s intended path of travel
• Acceptable strategies for deceleration are listed below:
Threshold braking is defined as – A technique used to stop a vehicle in the most efficient way without locking up the wheels
Trail braking is defined as – A method of applying brake pressure after entering a turn allowing for a less abrupt and more accurate corner speed adjustment
If a skid or spin occurs, the driver should stay calm and control input to the steering, gas, and brake to avoid a more violent skid or spin. If
the vehicle is entering a spin, the driver should release the throttle and smoothly steer in the direction the back end has begun to spin
♦ Steering
• Over steer – Occurs when the rear tires exceed the slip angles of the front tires, thus causing the rear of the vehicle to move in the direction of the
outside corner
• Under steer – Occurs when the vehicle’s front tires have less traction during cornering than the rear tires
• Hand Positioning – The preferred hand position is nine and three on the steering wheel
• Three types of corners common to highway design are:
• Cornering methods:
• Three types of corners common to highway design are:
Constant radius – requires constant, consistent steering
Increasing radius – requires sharp to gradual steering
Decreasing radius – requires gradual, then sharper steering
• Cornering methods:
Scan 12 seconds ahead and evaluate the conditions of the approaching corner
Ensure lane position adjustments occur before arriving at the corner, positioning to outside avoiding oncoming lanes
Depending on the approach speed, braking may not be necessary. Speed control can be acquired through deceleration, “threshold braking” or “trail braking”
Have speed under control before entering the corner to avoid heavy braking while steering
LAW ENFORCEMENT DRI VING FND . 2 0 1 0 . 1 0 2
The cadet will recall the effects that attitude and emotions have on driving a law enforcement vehicle and the importance of hazard perception with common factors that contribute to collisions.
♦ Effects emotions may have on the body include:
♦ Emotions can have a distracting effect on driving to include:
♦ Effects emotions may have on the body include:
- Increased heart rate and blood pressure
- Increased respiratory rate
- Muscle tension
♦ Emotions can have a distracting effect on driving to include:
- Dimmed or blind powers of observation
- Distorted or slowed ability to interpret or predict events
- Impaired judgment
- Fine motor skills reduced affecting precisely timed skills (steering, braking, etc.)
♦ Some reasons why emotions can be positive in determining driving behavior are:
- Reasoned fear of crash or legal consequences may restrain unsafe tendencies
- Love for family and friends motivates drivers to safer driving
♦ The acronym SIPDE represents the preferred method for a driver to recognize and categorize hazards
• S – Search and scan (keep your eyes moving at all times to effectively see imminent danger)
• I – Identify hazards, identify what’s happening (road-way features and problems)
• P – Predict which hazards could potentially come into conflict with vehicle operation
Predict 2 things
• Worst case scenario
• Actions
• D – Decide on a safe action (decide on something to do should the dog run across the road)
• E – Execute a safe action; use communication
EMERGENCY VEHICLE RESPONSE FND . 2 0 1 0 . 1 0 3
The cadet will identify psychological factors that affect the driver during an emergency response.
♦ Aggressiveness – An emotional display of energy that generally impairs judgment
♦ Aggressiveness – An emotional display of energy that generally impairs judgment
• Common characteristics of aggressive behavior are:
Over confidence
Self-righteousness
Impatience