This paper describes a system for recommending hiking routes to help manage hiking activities in a protected area. The system proposes various routes, based on five criteria that maximize some aspects of hikers’ requirements (by analyzing the viability and difficulty of the trails) and also those of protected areas managers (by proposals to relieve congestion in areas already used for hiking and to promote awareness of new ones, as a contribution to environmental education). The recommendation system uses network analysis, multi-criteria decision analysis and geographic information system by free software tools: PgRouting, PostgreSQL and PostGIS. This system has been tested in Sierra de las Nieves Nature Reserve (Andalusia, Spain). Of the 182 routes obtained by the system, 62 (34%) are considered viable for hikers in Sierra de las Nieves, taking into account the type of user most likely to visit this protected area. Most routes have a high difficulty level, which is coherent with the mountainous character of the protected area.

中文翻译：

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确定合适和可行的远足路线的推荐系统：Sierra de las Nieves自然保护区（西班牙南部）的原型应用

本文介绍了一种用于推荐远足路线的系统，以帮助管理保护区中的远足活动。该系统根据五个标准提出了各种路线，这些标准最大程度地提高了徒步旅行者需求的某些方面（通过分析步道的生存能力和难度）以及保护区管理人员的需求（通过缓解已经用于徒步旅行和提高对新知识的认识，为环境教育做出贡献。推荐系统通过免费软件工具PgRouting，PostgreSQL和PostGIS使用网络分析，多准则决策分析和地理信息系统。该系统已经在塞拉利昂德拉斯涅维斯自然保护区（西班牙安达卢西亚）进行了测试。该系统获得的182条路线中，有62条（占3​​4％）对塞拉利昂德尼维斯山脉的徒步旅行者来说是可行的，考虑到最有可能访问此保护区的用户类型。大多数路线的难度都很高，这与保护区的山区特征相吻合。