8.2. Definitions and notations

Try these first

1. 1.

   Define the trip matrix.

   Hint

   Think about how we visualize data relating to travel between places.

2. 2.

   What does O and D stand for?

   Hint

   Focus on the starting and ending points of trips.

3. 3.

   What does a trip matrix represent?

   • Only total trips from one zone
   • Trips between different zones
   • None of the above

   Hint

   Remember how trips are organized in a two-dimensional format.

4. 4.

   True or False: The generalized cost includes only monetary values related to travel.

   • True
   • False

   Hint

   Consider the various factors affecting the traveler's experience.

5. 5.

   Given a trip matrix with the following values: T = [[30, 50], [20, 40]], calculate the total O and D.

   Hint

   Think about how to sum the rows for O and the columns for D.

6. 6.

   Discuss the trade-offs of using a singly constrained model versus a doubly constrained model in transportation planning.

   Hint

   Evaluate the impact of data limitations on model reliability.