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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is cycle length?
💡 Hint: Think about how the traffic signal changes from green to yellow to red.
Question 2
Easy
Define lost time in traffic signal management.
💡 Hint: Consider delays when the light changes.
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 the formula for calculating total lost time?
- L = N × t
- L = N + t
- L = N / t
💡 Hint: Remember that N represents phases and t represents time.
Question 2
True or False: Effective green time includes lost time.
- True
- False
💡 Hint: Think of what green time signifies.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A traffic signal has 5 phases, with each phase experiencing 4 seconds of lost time. If the saturation flow rate is 2400 vph and the critical volume during peak hours is 1800 vph, determine the cycle length.
💡 Hint: Apply the values systematically to reach the final answer.
Question 2
If a signal has a cycle length of 80 seconds, with startup lost time of 3 seconds per phase, four phases, and a critical volume of 1200 vph, how does this impact the effective green time?
💡 Hint: Think about the balance between cycle length and lost time.
Challenge and get performance evaluation