31.2. Time mean speed (v_t)

Try these first

1. 1.

   Define time mean speed.

   Hint

   Consider how it's measured.

2. 2.

   What does n represent in the time mean speed formula?

   Hint

   Think about how many vehicles you are counting.

3. 3.

   What does time mean speed measure?

   • Instantaneous speed of vehicles
   • Average speed over time
   • Speed on a specific road segment

   Hint

   Think about how long the average is maintained.

4. 4.

   True or False: Time mean speed is always equal to space mean speed.

   • True
   • False

   Hint

   Reflect on the definitions of both measurements.

5. 5.

   In a speed study, speeds of a sample of vehicles were collected, with values of 60, 65, 70, 75, and 80 mph. Calculate the time mean speed and discuss how it might differ from a space mean speed in this scenario.

   Hint

   Consider the duration each speed was maintained.

6. 6.

   You are given a frequency distribution table showing categories of vehicle speeds with varying counts. Calculate the time mean speed using the provided data and discuss the implications.

   Hint

   Aggregate results from all categories to reveal overall tendencies.