31.8 - Summary
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Practice Questions
Test your understanding with targeted questions
What is time mean speed?
💡 Hint: Think about how you measure speed over time.
What does space mean speed focus on?
💡 Hint: Consider the duration vehicles spend traveling.
3 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What is true about time mean speed?
💡 Hint: Consider how both speeds are defined.
Fundamental diagrams relate which three elements?
💡 Hint: Focus on important traffic flow measurements.
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Challenge Problems
Push your limits with advanced challenges
You observe a traffic stream for one hour with 180 cars passing. Two are moving at 10 m/s, five at 20 m/s, and the rest (173) at 15 m/s. Calculate the time and space mean speeds.
💡 Hint: Use the definitions of mean speeds correctly and set the equations up carefully.
If a road can hold a maximum of 40 vehicles but sits at 30 causing slow movement, how does this reflect in a flow-density diagram?
💡 Hint: Refer back to how flow changes with density on that diagram.
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Reference links
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