Analysis of labor to operate linear move irrigation machines

Labor to operate linear move irrigation machines (LMIM) is dependent on several factors: machine, field geometry, pipe networks, hydraulics, operator skill and equipment. A mathematical model that takes into account most of these factors is presented. A time and motion study was carried out to evaluate quantitatively the time required to complete various activities in the operation of LMIM. For moving a linear lateral type fed by a flexible hose, the analysis clearly shows that machine width affects labor consumption significantly.