PROBLEM TO BE SOLVED: To appropriately and autonomously drive a work vehicle on either route, whether it is traveling on a work route or on a turning route. An autonomous traveling system in which a work vehicle autonomously travels along a travel route including a plurality of work routes in which work is performed by a work vehicle and a turning route that connects the work routes and turns the work vehicle. The position information acquisition unit 23a that acquires the position information of the work vehicle, the traveling accuracy identification unit 23b that identifies the deterioration of the traveling accuracy of the work vehicle, and the traveling accuracy identification unit 23b detect the deterioration of the traveling accuracy of the work vehicle. In this case, a work load reducing process execution unit 23d that executes a work load reducing process is provided. The work load reducing process execution unit 23d executes the first load reducing process when the work vehicle is on the work route. When the work vehicle is on the turning route, the second burden reduction process different from the first burden reduction process is executed. [Selection diagram] Figure 2【課題】作業車両が作業経路を走行するときも、旋回経路を走行するときも、どちらの経路においても適切に自律走行させること。【解決手段】作業車両により作業が行われる複数の作業経路と、各作業経路を接続するとともに作業車両を旋回させる旋回経路とを含む走行経路に沿って、作業車両を自律走行させる自律走行システムにおいて、作業車両の位置情報を取得する位置情報取得部２３ａと、作業車両の走行精度の低下を特定する走行精度特定部２３ｂと、走行精度特定部２３ｂにより作業車両の走行精度の低下が検知された場合に作業車両の負担軽減処理を実行する負担軽減処理実行部２３ｄとを備え、負担軽減処理実行部２３ｄは、作業車両が作業経路上にある場合には、第１負担軽減処理を実行し、作業車両が旋回経路上にある場合には、第１負担軽減処理とは異なる第２負担軽減処理を実行する。【選択図】図２
