Practice Definitions and notations - 41.2 | 20. Trafic Signal Design - I | Transportation Engineering - Vol 2
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41.2 - Definitions and notations

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is a cycle in traffic signals?

💡 Hint: Think about what happens from red to green.

Question 2

Easy

What denotes cycle length?

💡 Hint: Consider how we measure the duration of the changing lights.

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 is a cycle in traffic signals?

  • A single traffic light color
  • A complete rotation through all indications
  • The time for green light only

💡 Hint: Consider what happens through a full change of lights.

Question 2

True or False: The clearance interval is used for clearing the intersection of vehicles before the traffic signal changes.

  • True
  • False

💡 Hint: Think about how signals ensure safety for all movements.

Solve and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Consider an intersection that has a green light of 25 seconds, a yellow light of 5 seconds, and an all-red clearance of 2 seconds. Calculate the cycle length and discuss how lost time factors into this scenario.

💡 Hint: Add all light phases together, and remember to consider the driver's response time.

Question 2

If a change interval is extended from 3 seconds to 6 seconds, hypothesize how this might impact traffic flow and lost time at an intersection.

💡 Hint: Think about how longer yellow lights might help both safety and delays.

Challenge and get performance evaluation