32.2.4. Moving observer method for stream measurement

Try these first

1. 1.

   What is the main purpose of the moving observer method?

   Hint

   Think about what makes this method different from stationary measures.

2. 2.

   Name two parameters that can be calculated using the moving observer method.

   Hint

   Consider what quantities are observed during traffic flow.

3. 3.

   What is the primary goal of the moving observer method?

   • To measure static vehicle counts
   • To measure traffic flow parameters dynamically
   • To enhance speed limits

   Hint

   Think about how the observer interacts with traffic.

4. 4.

   True or False: The moving observer method requires the observer to be stationary.

   • True
   • False

   Hint

   Recall the definition of the method discussed.

5. 5.

   If a moving observer counts 120 vehicles passing by in one direction and encounters 30 vehicles while moving opposite, calculate the flow if the observer takes 15 minutes for the test.

   Hint

   Ensure your time conversion is correct.

6. 6.

   An observer measures a flow of 720 veh/hr and the average speed of traffic is 40 km/hr. Determine the density and discuss how it reflects the efficiency of road use.

   Hint

   Think about what high density means for drivers on the road.