顾及地形起伏的步行最优路径分析算法  

An Optimal Walking Path Algorithm Considering Terrain Influence

作　　者：严瑞[1,2,3] 龙毅[1,2,3] 郑玥[1,2,3] 余明朗[1,2,3] 

机构地区：[1]南京师范大学地理科学学院,南京市文苑路1号210046 [2]南京师范大学虚拟地理环境教育部重点实验室,南京市文苑路1号210046 [3]南京师范大学地理信息科学江苏省重点实验室,南京市文苑路1号210046

出　　处：《武汉大学学报（信息科学版）》2012年第5期564-568,572,共6页Geomatics and Information Science of Wuhan University

基　　金：国家863计划资助项目(2007AA12Z218);江苏省科技支撑计划(工业)资助项目(BE2010100);南京师范大学科技成果转化资助项目(184070H80908);上海市长三角科技联合攻关资助项目(09595810400)

摘　　要：将行人的生理因素与GIS路径分析有机结合起来,根据生理学研究进展,建立了步行体能消耗计算模型,并提出了基于坡度转换的等效水平距离计算原则,从而将三维空间距离转换为等体能消耗平面距离,实现了顾及地形起伏的最优路径算法。实验结果表明,该算法具有兼顾坡度与距离关系的优势,提高了路径分析方法的有效性。We combined physiological theory with classic GIS path planning method,and a model for calculating walking energy expenditure per unit distance was established based on recent physiological studies,and an approach was made to convert road real length on different gradient to corresponding level distance using the model.With this approach,real path lengths were transformed into equal level lengths before being measured.The results show that both gradient and distance are taken into account in this algorithm,and the route provided was more reliable and useful than that by shortest path algorithm for pedestrians.

关 键 词：最优路径 地形 坡度 步行能量消耗 等效距离 

分 类 号：P208[天文地球—地图制图学与地理信息工程]