ArticleTogether with the requirement for higher productivity the average performance and the
weight of agricultural machines are increasing. Agricultural land is increasingly exposed to
pressures caused by agricultural machinery. The heavy agricultural machinery
passes across a
field are frequently associated with technogenic soil compaction. Soil compaction is one of the
main problems of modern agriculture. From the previous measuring of the traffic intensity it was
found 86.13
%
of the total field area was run
-
o
ver with a machine at least once a year, when using
conventional tillage and 63.75
%
of the total field area was run
-
over when using direct seeding
technology, with dependence on the working width of the machines. Field passes are inevitable
in present agri
culture. As a result of the increase of total machines weight, it is necessary to
optimize the traffic lines trajectories and limit the entries of the machines in the field. At present,
the choice of traffic lines direction is based primarily on the experi
ence of drivers or the practice
of farmers. There are a number of influences that affect the machine work efficiency. Monitoring
of the tractor, on an irregular 8 fields showed the following results. Eight
-
meter working width
tiller or seeder brought short
ening of total length of turns at headlands with the change in
trajectory azimuth. For purposes of measuring the monitored tractors were equipped with
monitoring units ITineris. An overview of the chosen directions of the trajectories and the lengths
of wo
rking and non
-
working passes was obtained. Based on the shape of the plot, the trajectory
of the lines was also modelled. Suitable traffic lines directions in terms of the ratio of work and
non
-
work passes were searched.
Based on records of real trajectori
es, the ratio of working and non
-
working path ranged between
6.3 and 15.2%. It was obvious from the results that the shortening of non
-
working passes and
turns in comparison with the originally chosen trajectory directions was achieved by optimization.
Thi
s was especially valid for complex shapes of fields. Trajectory optimization leads to a
reduction of total le
n
g
th
of path in all cases. The reduction in total length of path ranged from
69.7
m to 1
,
004.8
m. Changing the length of the working path ranged fr
om 10.9
m to 264.9
m
with the change in azimuth. The extension was observed in three cases. The highest part on the
change of the overall length of the path presented nonworking rides
