22 



BULLETIN 910, U. S. DEPARTMENT OF AGEICULTURE. 



The average of the estimates of these 553 men is 3,820 miles, but 

 53 per cent of the estimates were 3,250 miles or less. 



The amount of material hauled from and to the farm, which 

 depends on the type of farming and the size of the farm ; the size of 

 load, which depends on the size of the truck; and the length of haul, 

 all have an influence on the distance per year which a truck travels, 

 but for the farms under consideration these factors are all corelated 

 in such a way that no one of them exerts a predominating influence. 

 For instance, the average of the estimates of the number of miles per 

 year traveled by the trucks on the farms of different types is as 

 follows : 



Miles. 



108 truck farms 3, 800 



93 dairy farms 3, 960 



89 fruit farms 3, 980 



36 crop farms 3, 240 



227 general farms 3, 800 



Similarly, the size of the truck and the distance from the farm to 

 market show very little relation to the number of miles traveled per 

 year. The average of the estimates of — 



113 men -who own J-ton trucks is 3,790 miles per year. 



80 men who own f-ton trucks is 4,370 miles per year. 

 232 men who own 1-ton trucks is 3,660 miles per year. 

 • 52 men who own 1|- and lj-ton trucks is 3,100 miles per year. 



60 men who own 2-ton trucks is 4,070 miles per year. 



16 men who own 2J-ton and larger trucks is 4,980 miles per year. 



These farmers were also asked for their estimate of the number of 

 days per year on which they used their trucks — not the number of 

 full days work per year which the truck did, but simply the number 

 of days on which some use was made of it. The average of the 

 estimates of the number of days per year on which some use is made 

 of the trucks on farms of different types is shpwn in Table XIII. 

 The dairy farmers use their trucks on the most days and the crop 

 farmers on the fewest. The estimates also showed that in general the 

 smaller trucks were used on a somewhat greater number of days than 

 were the larger ones. 



Table XIII. — Days per year on which trucks are used. 



Type of farming. 



Number 

 of esti- 

 mates. 



Days per 

 year on 

 which 

 truck 

 is used. 



Truck 



133 



109 



99 



43 



255 



160 

 244 

 159 

 127 

 162 



Dairy 



Fruit 







All 



639 



173 



