31.7.4. Combined diagrams

Try these first

1. 1.

   What does the flow-density curve represent?

   Hint

   Think about how number of cars changes with space.

2. 2.

   How does speed typically change as density increases?

   Hint

   Consider what happens in heavy traffic.

3. 3.

   What happens to flow at maximum density?

   • Increases
   • Decreases
   • Remains constant

   Hint

   Recall how heavy traffic affects movement.

4. 4.

   True or False: Speed decreases as vehicle density increases.

   • True
   • False

   Hint

   Think about traffic jams.

5. 5.

   Design an experiment to observe how different densities affect vehicle speed on a controlled track.

   Hint

   Consider the types of vehicles that will be used.

6. 6.

   Analyze the implications of a new traffic policy that aims to reduce density at peak times. How might this affect flow?

   Hint

   Think about real-world examples where policies have changed traffic flow.