PROBLEM TO BE SOLVED: To provide a travel route determination device capable of flexibly carrying out a route change in the middle of work so as to cope with a variation in a work environment of a work vehicle.SOLUTION: A travel route determination device includes: a region setting part 44 for setting a work object region CA in a work place a route management part 60 for calculating a travel route element group which is an aggregate of a large number of travel route elements constituting the travel route covering the work object region CA, and storing it so as to be readable and a route element selection part 63 for sequentially selecting a next travel route element for the next travel from the travel route element group based on state information, which is a result of evaluation on a work environment of a work vehicle, while the work vehicle is travelling in the work place.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2018,JPO&INPIT【課題】作業車の作業環境の変動に対処するため、作業途中での経路変更を柔軟に行うことができる走行経路決定装置が要望されている。【解決手段】走行経路決定装置は、作業地の作業対象領域CAを設定する領域設定部44と、作業対象領域CAを網羅する走行経路を構成する多数の走行経路要素の集合体である走行経路要素群を算出して、読み出し可能に格納する経路管理部60と、作業地内での作業車の走行中に、作業車の作業環境の評価結果である状態情報に基づいて、次に走行すべき次走行経路要素を順次走行経路要素群から選択する経路要素選択部63と、を備えている。【選択図】図2
