What is the recommended maximum grade for a highway to ensure vehicle safety and

Practice Questions

Q1
What is the recommended maximum grade for a highway to ensure vehicle safety and performance?
  1. 2%
  2. 4%
  3. 6%
  4. 8%

Questions & Step-by-Step Solutions

What is the recommended maximum grade for a highway to ensure vehicle safety and performance?
  • Step 1: Understand what 'grade' means. Grade refers to the steepness of a road, usually expressed as a percentage.
  • Step 2: Know that a 6% grade means that for every 100 units of horizontal distance, the road rises or falls 6 units.
  • Step 3: Recognize that steeper grades can make it harder for vehicles to climb or descend safely.
  • Step 4: Learn that a maximum grade of 6% is recommended to help ensure that all types of vehicles can operate safely and effectively on the highway.
  • Step 5: Remember that this recommendation helps prevent accidents and improves overall road safety.
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