The generalized form for the equation is as follows: 

 aL + 2aT + U(a-l) = 10 



Where: 



a = number of trips 



L = loading time for one load, based on crew size and truck size 



T = time available for travel one-way 



U = unloading time for one load, based on truck size 

 10 = restriction of 10 hour day for driver 

 aL yields the total truck loading time 

 2aT yields the total truck travel time 

 U(a-l) yields the turnaround time when truck takes 

 more than one trip 



The calculation for the 190-crate truck, two trips per day, and a 

 10-nian crew is (all times in hours) : 



2(1.06) + 2(2 )T + .89 = 10 



4T = 10 - 3.01 

 T = 1.748 



T must then he converted into miles using the functions in Appen- 

 dix B and the regression between road distance and radial distance de- 

 veloped in Appendix A applied (all distances in miles) : 



Equation from Appendix B: 



T = 2.865 + 2.6818D - 0.01020^ 

 1.748 = 2.865 + 2.6818D - 0.0102D2 

 D = 45 road miles 



Equation from Appendix A: 



D = - 1.534 + 1.351P 



_ 45 + 1.534 



~ 1.351 



P = 34.4 radial miles 



Figure C-3 shows that with a density level of 25,000 pounds per 

 square mile per year most of the poultry can he collected on a three 

 trip a day basis for the trucks, but Figure C-1 shows that at the 1,000 

 pound density level very little of the poultry can be collected on a 

 three trip a day basis. Moreover, Figvire C-1 shows that at the 1,000 pound 

 density level the poultry in Supply Band VI cannot be reached at all 

 under the restrictions in this study. Also, even though the impound point 

 in Supply Band V can be reached at the 1,000 pound density level, 

 the outer rim of the supply band cannot be reached, so this eliminates 

 Supply Band V under the 1.000 pound per year density level condition. 



48 



