4 8 12 16 20 24 28 32 36 40 44 48 52 56 60 64 68 72 76 80 



ROUTE MILEAGE 



Figure 9. Relationship between route mileage and truck travel time. 



From the foregoing it is evident that the effects of doubling man minutes 

 in travel, position, and collection are hardly likely to be offset by increases 

 in loading efficiency eventually realized by using two men instead of one 

 man on delivery trucks. 



The "most efficient" factors when used in the formula with actual route 

 specifications should provide a basis for comparison with actual route times 

 being experienced. Such a comparison, of present results against efficiency 

 standards constructed from actual observations, is a fair test of current 

 performance against a goal of more-or-less ideal conditions. 



Under certain circumstances, a savings in elapsed time would be more 

 important than savings in man minutes per unit. If the savings in route 

 time by using additional men were sufficient to permit the utilization of less 

 equipment to cover a given territory, and the amount saved on equipment 

 and operating costs were greater than the savings in labor cost (man minutes), 

 additional men would be profitable. In terms of the results of this study 

 such does not appear to be the case when comparing one and two man 

 routes. 



37 



