PROBLEM TO BE SOLVED: To provide a line network plan with reality, which is automatically generated in consideration of, without relying on the experience and intuition of individual engineers on site, topographical conditions in the construction area of the line network and the costs necessary for construction of the road network and the income anticipated by establishing the road network.SOLUTION: According to the present invention, there is provided a line network route-designing apparatus 11. The apparatus comprises: candidate route-generating means 19 for generating a plurality of candidate routes within a pre-specified range of designation, based on previously stored map information in forest and vehicle information on specifications of a work vehicle passing through a work road for each candidate route, based on the length of the route and various condition settings, route length-calculating means 20 for determining the length of each candidate route assumed profit-calculating means 22 for obtaining, as an index for route selection, the assumed profit obtained by subtracting a cost necessary for constructing a work road from an income anticipated by establishing the work road and route-determining means 23 for providing as a determined route a route selected on the basis of the assumed benefit from each candidate route.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2018,JPO&INPIT【課題】現場の技術者個人の経験や勘に依存することなく、路網の作設範囲における地形条件や、路網の新設工事に必要なコストや路網の新設によって見込まれる収入を考慮して、現実性の有る路網計画を自動生成すること。【解決手段】本発明に係る路網ルート設計装置11は、予め記憶された山林内の地図情報と作業道を通行する作業車両のスペックに関する車両情報とに基づき、予め指定された作設範囲内で候補となる候補ルートを複数生成する候補ルート生成手段19と、各候補ルートの長さを求めるルート長さ算出手段20と、各候補ルートそれぞれにつき、ルートの長さと各種の条件設定に基づき、作業道の新設により見込まれる収入から作業道の新設工事に必要なコストを差し引いた想定利益をルート選択用の指標として求める想定利益算出手段22と、各候補ルートの中から、想定利益に基づき選択されたルートを決定ルートとするルート決定手段23とを備えている。【選択図】 図1
