7.3. Growth Factor Modeling

Try these first

1. 1.

   What is growth factor modeling?

   Hint

   Consider how it relates to trip generation.

2. 2.

   Identify three explanatory variables used in growth factor modeling.

   Hint

   Think about demographics and socio-economics.

3. 3.

   What does the growth factor modeling predict?

   • Current trips
   • Future trips
   • Trip purposes

   Hint

   Remember that it looks ahead, not just at the present.

4. 4.

   True or False: Growth factor models can be applied effectively for internal trip forecasting.

   • True
   • False

   Hint

   Think about where this model is most useful.

5. 5.

   A region has 1000 households currently generating 2500 trips per day. If the average household income increases and leads to a growth factor of 1.2, what will be the projected future trips?

   Hint

   Use the growth factor to adjust the current trips.

6. 6.

   Critique the effectiveness of growth factor modeling when applied to rapidly changing urban environments. Provide examples of scenarios where it may fail.

   Hint

   Consider the implications of rapid change.