Practice Case 1 Length of valley curve greater than stopping sight distance (L>S) - 18.2.2.2.1 | 18. Vertical Alignment - 2 | Transportation Engineering - Vol 1
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18.2.2.2.1 - Case 1 Length of valley curve greater than stopping sight distance (L>S)

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What defines a valley curve?

💡 Hint: Think about the shape and purpose of road curves.

Question 2

Easy

What do we consider when determining headlight sight distance?

💡 Hint: Relate the question to night driving conditions for clarity.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What condition must the length of a valley curve satisfy when it exceeds the stopping sight distance?

  • The curve must have an infinite radius.
  • The sight distance is minimum at the lowest point.
  • The headlight beam must have a height less than S.

💡 Hint: Think about where visibility would be lowest on the curve.

Question 2

True or False: A valley curve provides more comfort for passengers when designed appropriately.

  • True
  • False

💡 Hint: Consider how passengers react to smooth rides.

Solve and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Considering a valley curve with specific gradients, calculate both the comfort and safety lengths and determine the most appropriate design for SSD.

💡 Hint: Ensure all parameters used in your calculations are aligned with your scenario.

Question 2

Analyze the impact of improper valley curve design in terms of accident statistics and passenger comfort.

💡 Hint: Draw data from real-world scenarios to support your argument.

Challenge and get performance evaluation