Practice Illustration Of Mean Speeds (31.4) - Fundamental relations of traffic flow

Practice: Illustration of mean speeds

Lesson 31.4Fundamental relations of traffic flow

Practise this section

8 questions

Flashcard drill
4 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
Sign up to start the exercise
Quiz
2 questions · about 1 min · pass mark 70%. Hints available.
Sign up to start the quiz

6 sample questions

Question 1.
What is time mean speed?
Show hintHide hint
Think about how average speeds are calculated over time.
Question 2.
How do we calculate headway?
Show hintHide hint
Consider what spacing and speed mean together.
3Question 3.
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)
Show hintHide hint
Focus on how average calculations are performed.
4Question 4.
True or False: Space mean speed is always greater than time mean speed.
- True
- False
Show hintHide hint
Review the definitions carefully.
Question 5.
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?
Show hintHide hint
Apply definitions and remember how each speed type is derived.
Question 6.
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.
Show hintHide hint
You may want to break down speeds by their mean methods and establish flow parameters.

4 more questions in this section. Enroll free to practise them all.