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TOTAL STOPPING DISTANCE = PERCEPTION DISTANCE+REACTION DISTANCE +BRAKING DISTANCE
TSD=PD+RD+BD
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Factors Effecting Distance Factors Effecting Distance
You move your foot to the brake BRAKES ARE APPLIED You see a box falling off of a truck Factors Effecting Distance
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PERCEPTION DISTANCE
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Perception Distance The distance you travel while you Identify, Predict, and Decide to stop for a hazard Factors affecting PD: Distraction DUI Vision problems Weather Fatigue Mental disability Blind spots and LOS restrictions
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Blind spots and LOS restriction Distance
Perception Factors Effecting Distance Factors Effecting Distraction DUI Vision problems Weather Fatigue Mental disability Blind spots and LOS restriction Distance You move your foot to the brake BRAKES ARE APPLIED You see a box falling off of a truck Factors Effecting Distance
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REACTION DISTANCE
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REACTION DISTANCE The Distance your brain tells your foot to move from the gas to the brake. Factors affecting RD: DUI Distraction??? Fatigue AGE Physical mental disability Speed
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Blind spots and LOS restriction Distance
Perception Factors Effecting Distance Factors Effecting PD: Distraction DUI Vision problems Weather Fatigue Mental disability Blind spots and LOS restriction Distance You move your foot to the brake BRAKES ARE APPLIED You see a box falling off of a truck Factors Effecting RD: DUI Distraction??? Fatigue AGE Physical mental disability Speed REACTION Distance
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BRAKING DISTANCE
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BRAKING Distance The distance you travel while the brakes are applied
Factors affecting BD: Available traction Brake condition Driver ability Tire condition Weather/Road Conditions
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Weather/Road Conditions Distraction DUI Vision problems Weather
Perception Factors Effecting Distance Factors Effecting PD: Available traction Brake condition Driver ability Tire condition Weather/Road Conditions Distraction DUI Vision problems Weather Fatigue Mental disability Blind spots and LOS restriction BRAKING Distance You move your foot to the brake BRAKES ARE APPLIED You see a box falling off of a truck Factors Effecting RD: DUI Distraction??? Fatigue AGE Physical mental disability Speed REACTION Distance
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