Advantages and Disadvantages of Growth Factor Models 

Advantages of growth factor method 

1.  They are easily understood and applied with an etimation of the growth factor.
2. The simple process of iteration quickly generate a balance between the observe and a computedtrips ends.
3. They are simple in operation and application and can be used to distribute trips by different modes for different purpose and different time a day. 
4. They have been well tested and found to be reasonable when applied to the areas where the pattern and the density of development is stable. 

 Disadvantages of growth factor method 

1.  Major short coming in these growth Factor Model are that  these are weak to  calculate the future distribution of trips  for those area which are not developed or yet to be developed during the percent yearyear.
2. These models do not  take effect of the change of travel impedance between the zones. o