To provide an implement comprising high work efficiency when causing a machine body to travel along a travel path including a first path being a direct travel path, a second path where the machine body travels directly in an orientation different from that of the second path, and a switching path where the machine body moves from the first path to the second path, and capable of causing the machine body to travel surely on an intended path in traveling on the switching path, and an operation method thereof.SOLUTION: A switching path comprises: a forward route on which the machine body travels directly, in a state of changing a travel direction of the machine body by an angle less than 90 degree, to an orientation different from the orientations of the first path and second path, from a termination side of the first path； and a return route where the machine body travels directly toward the termination of the first path or to a start end of the second path, by changing a travel direction so as to return from the termination side of the forward route, when the machine body reaches the termination side of the forward route, the machine body is caused to perform pivot turn or swivel turning on the site, so as to be directed to a travel direction of the return route.SELECTED DRAWING: Figure 8【課題】直進経路である第１経路と、該第２経路と異なる向きに直進する第２経路と、第１経路から第２経路へ移動する切換経路とを含む走行経路に沿って機体を走行させるにあたり、高い作業効率を有するとともに、切換経路の走行中も意図した経路を確実に走行させることが可能な作業機及びその運転方法を提供することを課題とする。【解決手段】切換経路は、第１経路の終端側から該第１経路及び第２経路と異なる向きに進行方向を９０度未満で変更して前記機体が直進する往路と、該往路の終端側から折り返すように進行方向を変更して機体が第１経路の終端又は前記第２経路の始端に向かって直進する復路とを含み、機体が往路の終端側に到達した場合、該機体を、復路の進行方向を向くように、その場で信地旋回又は超信地旋回させる。【選択図】図８
