5.6.5 Stopping Distances

• The stopping distance is the total distance a vehicle travels from when the driver first notices a hazard to when the vehicle comes to a complete stop
• What is the definition of thinking distance in stopping distance?

  Distance during reaction time
• The braking distance is the distance the vehicle covers while the brakes are applied and the vehicle decelerates
• Match the component of stopping distance with its definition:

  Thinking Distance ↔️ The distance covered during reaction time

  Braking Distance ↔️ The distance covered while braking
• The thinking distance is the distance covered during the time it takes the driver to react and apply the brakes
• The thinking distance and braking distance together determine the total stopping distance


  True
• How does reaction time affect thinking distance?

  Faster reaction time reduces it
• Slippery or wet road surfaces increase the braking distance because there is less friction
• Order the components and related factors of stopping distance based on their sequence:

  1️⃣ Driver notices a hazard

  2️⃣ Reaction time affects thinking distance

  3️⃣ Driver applies brakes

  4️⃣ Vehicle decelerates during braking distance

  5️⃣ Vehicle comes to a complete stop
• What is the thinking distance defined as?

  Reaction time distance
• The total stopping distance is the sum of the thinking distance and braking distance.


  True
• What determines the total stopping distance of a vehicle?

  Thinking and braking distances
• Order the factors affecting thinking distance from most to least significant:

  1️⃣ Driver's Alertness

  2️⃣ Concentration

  3️⃣ Reaction Time
• Slippery road surfaces increase the braking distance due to less friction.


  True
• What type of impact does speed have on braking distance?

  Exponential
• The formula for braking distance is d_{b} = \frac{v^{2}}{2a}</latex>, where `a` is the deceleration rate.
• A distracted driver will have a shorter thinking distance compared to an alert driver.

  False
• Match the distance type with its calculation:

  Thinking Distance ↔️ $d_{t} =$$\frac{v \cdot t}{2}$

  Braking Distance ↔️ $d_{b} =$$\frac{v^{2}}{2a}$

  Total Stopping Distance ↔️ $d_{s} =$$d_{t} +$$d_{b}$
• The thinking distance is affected by the driver's alertness and concentration

  True
• What are the main factors affecting braking distance?

  Vehicle speed, road surface, brake effectiveness
• What is the relationship between thinking distance and braking distance?

  They add up to stopping distance
• What are three key factors affecting thinking distance?

  Alertness, concentration, reaction time
• The thinking distance is the distance a vehicle travels during the time it takes for the driver to perceive a hazard and start applying the brakes
• Higher vehicle speed leads to a longer braking distance


  True
• How do more effective brakes affect braking distance?

  They reduce braking distance
• The braking distance is affected by the driver's alertness and reaction time

  False
• The braking distance is influenced by vehicle speed, road surface, and brake effectiveness
• Match the components of stopping distance with their definitions:

  Thinking Distance ↔️ Distance during reaction time

  Braking Distance ↔️ Distance during deceleration
• The thinking distance is affected by the driver's alertness, concentration, and reaction time.


  True
• Higher vehicle speed leads to a longer braking distance
• Match the factor with its impact on stopping distance:

  Speed ↔️ Increases both thinking and braking distances

  Reaction Time ↔️ Increases thinking distance
• The formula for thinking distance is $d_{t} =$$\frac{v \cdot t}{2}$.


  True
• How is the total stopping distance calculated?

  $d_{s} =$$d_{t} +$$d_{b}$
• What factors increase the braking distance of a vehicle?

  Speed and slippery roads