FARM MOTOR TRUCK OPERATION. 15 
ing when the roads were impassable for trucks, as in some cases no 
road hauling was necessary at such times. 
On the average there were 10.7 weeks during the year when the 
trucks which usually traveled on dirt roads only could not be used, 
7.8 weeks when those which run on part dirt and part improved 
roads could not be used, and 3.5 weeks when those driven only on 
improved roads could not be used. 
In all, less than one-fourth of the truck owners had found it pos- 
sible to use their machines every week in the year, while between 
35 and 40 per cent stated there were over 8 weeks out of the 52 when 
they could not use them. About 50 per cent of the men with wholly 
improved roads stated they could use their trucks every week in the 
year as compared with 9 per cent of those with all dirt roads who 
could do so. There were over 8 weeks during the year when 55 
per cent of the men with all dirt roads were unable to use their raa- 
Pig. 9. — The truck can often be used to advantage for hauling on the farm. 
chines. Snow Avas probably the main cause of the wholly improved 
roads being impassable for trucks at least 1 week in the year. 
The reports indicated that the kind of tires with which the trucks 
were equipped apparently had little to do with the length of time 
they could not be used on account of the condition of the roads. 
HAULING ON THE FARM WITH TRUCKS. 
Although farm-owned motor trucks are used to a much greater 
extent for road hauling than for any other purpose, they can in 
some instances be used to advantage for part of the hauling on the 
farm itself. (See fig. 9.) Approximately 60 per cent of the reports 
showed that some of the hauling on the farm was done with trucks, 
while about 29 per cent of the truck owners who furnished informa- 
tion on this point in 1920 stated that they used their machines to 
