Figure 3. Total Operating Cost for Vehicle Types M and N 

 at Various Annual Mileages. 



8000 



7000 



6000- 



5000 



o 



T3 



ti4000 



o 



o 



o 



QJ 

 > 



3000 



2000 



1000 



Q 



KEY 



Cost function for operations within a 150 mile radius 

 Cost function for operations within a 50 mile radius 



J- 







10 20 30 40 50 



Thousands of miles per year 



60 



70 



cents for a type Q vehicle. But the cost per chick of load capacity de- 

 creases froni a high of 25.9 cents for the type M vehicle to a low of 12.6 

 cents for the type Q vehicle. 



The cost per mile decreases with increasing mileage for each type 

 vehicle. For example, a type O vehicle operating within an area of a 50 

 mile radius has a cost of 22 cents per mile at 10,000 miles per year, and 

 a cost of 10.4 cents per mile at 50,000 miles per year. 



35 



