ANALYSIS OF TRAFFIC PATTERNS AND YIELD MONITOR DATA FOR FIELD EFFICIENCY DETERMINATION
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Field efficiency is an important criterion for determining the expected field capacity and, indirectly, for making
important machinery management decisions. The data gathered with a yield monitor during harvest and a DGPS monitor
during planting were used to provide time–motion studies of equipment and operator productivity. This study used spatial data
gathered by a farmer to determine field performance of a combine and a planter. Five fields were used to compare results from
soybean and corn production. Fields that are relatively flat with straight rows were contrasted with contoured fields with
slopes up to 3 to 5%. Field efficiency, travel speeds, and unproductive time lapses were compared. When contour patterns
were compared with the straight rows, field efficiency dropped on the contours by 10 and 20% for planting and harvesting,
respectively. Average travel speeds were slower for contour patterns than straight rows by more than 1.6 km/h (1 mph).
Although the histograms of the time lapses were very similar for contour and straight patterns, almost twice the number of
time lapses was found with the contour pattern.