apparent
therefore that considerable difference may exist in the kind of
construction adequate for the various sections of road where farm
traffic is the principal consideration. This traffic is made up of
horse drawn wagons, transporting farm products and of horse drawn and
motor passenger vehicles, the motor traffic comprising 80 per cent or
more of the volume of traffic and a greater per cent of the tonnage.
Motor trucks are now employed to some extent for marketing farm
products and, where surfaced highways have been provided, this class
of traffic is superseding horse drawn traffic.

=Farm to Farm Traffic.=--In the ordinary prosecution of farming
operations, a considerable amount of neighborhood travel is
inevitable. Farmers help each other with certain kinds of work,
exchange commodities such as seed, machinery and farm animals and
visit back and forth both for business and pleasure. To accommodate
this traffic, it is desirable to provide good neighborhood roads.
Traffic of this sort follows no particular route and can to some
extent accommodate itself to the condition of the highways without
entailing financial loss, although some discomfort and some
inconvenience may result from inadequate highway facilities. This
traffic will be partly motor and partly horse drawn, but the
proportion of motor driven is large.

=Inter-city Traffic.=--In strictly agricultural districts there is a
large amount of travel between towns, both for business and for
pleasure. The pleasure travel is mostly in motor vehicles and a
considerable part of the business traffic is the same, although horse
drawn vehicles are employed to some extent.

In industrial districts there is a large volume of this class of
traffic consisting of motor passenger vehicles used for business and
for pleasure and of motor freight vehicles used for general business
purposes. In addition, there is certain to be a large amount of motor
truck freight traffic incident to the particular industrial pursuits
of the cities. Where adequate public highways connect industrial
centers, there is invariably a very large amount of inter-city
traffic, due in part to the needs of industry and in part to
concentration of population in industrial centers.

=Inter-County and Inter-State Traffic.=--Automobile touring is a
popular means of relaxation, especially on the part of those who live
in the cities, although it is by no means confined to them. Traffic of
this kind foll