This paper proposes the concept of "average horizon" to evaluate the optimality of the path visual coverage.
提出平均视距的概念来衡量路径可视覆盖的最优性,给出以最大平均视距为优化目标的最优可视覆盖路径问题的求解模型。
On the problems of the maintenance of the horizon platform of the roads in Hainan and its measures;
海南省公路视距平台养护工作存在问题与对策