42.4 - Performance Measures
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Practice Questions
Test your understanding with targeted questions
What is stopped delay?
💡 Hint: Think about what happens when you have to stop at a traffic light.
Define queue length.
💡 Hint: Consider how many cars are lined up at a stoplight.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the main component of delay at an intersection?
💡 Hint: Consider what contributes to waiting time.
True or False: Webster's model assumes that vehicles arrive in a random pattern.
💡 Hint: Reflect on the assumptions that simplify traffic modeling.
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Challenge Problems
Push your limits with advanced challenges
Calculate the total delay per cycle at an intersection where the cycle length is 120 seconds, effective green time is 70 seconds, critical flow is 600 vehicles/hour, and saturation flow is 1800 vehicles/hour.
💡 Hint: Break down the equation and substitute values step by step.
Discuss the impact of reducing average delay at a traffic signal on vehicle emissions and driver behavior.
💡 Hint: Consider environmental and psychological aspects.
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