Practice Illustration of mean speeds - 31.4 | 10. Fundamental relations of traffic flow | Transportation Engineering - Vol 2
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Illustration of mean speeds

31.4 - Illustration of mean speeds

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Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is time mean speed?

💡 Hint: Think about how average speeds are calculated over time.

Question 2 Easy

How do we calculate headway?

💡 Hint: Consider what spacing and speed mean together.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the formula for time mean speed?

v = sum(v_i)/n
v = sum(v_i * q_i)/Sum(q_i)
v = 1/(n * spacing)

💡 Hint: Focus on how average calculations are performed.

Question 2

True or False: Space mean speed is always greater than time mean speed.

True
False

💡 Hint: Review the definitions carefully.

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Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

A stretch of road has a time mean speed of 30 m/s with 100 vehicles traveling. If the headway is recorded as 2s, what is the space mean speed?

💡 Hint: Apply definitions and remember how each speed type is derived.

Challenge 2 Hard

In a test scenario, two sets of vehicles with average speeds of 10 m/s and 50 m/s, find the relationship between flow and density given the speed of incoming versus outgoing vehicles.

💡 Hint: You may want to break down speeds by their mean methods and establish flow parameters.

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Reference links

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