Balancing urban growth and natural resource availability has been recognized as the main challenge of the 21st century from the strategic documents adopted by the recent World Summits. Agenda 21 advocates sustainable land use, as soil is a crucial natural resource to reduce urban vulnerability due e.g. to climate change, energy saving, and natural disasters. In this perspective, this paper aims at supporting local decision makers in identifying the portions and the buildings of an urban area most susceptible to transformation, in order to promote a sustainable land use according to physical and functional characteristics. The proposed methodology combines the 3D modeling of urban settlements and the adoption of the performance-based approach by the urban transformation government, in order to guarantee the satisfaction of the supply–demand ratio through a compatible balance between urban growth dynamics and the overall urban efficiency. The test area was Gozo island, where a significant urban transformation will occur as a consequence of the new Malta-Gozo tunnel construction.

中文翻译：

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土地利用和城市可持续性评估：戈佐岛案例研究的 3D-GIS 应用

从最近的世界首脑会议通过的战略文件中，平衡城市增长和自然资源的可用性被认为是 21 世纪的主要挑战。21 世纪议程提倡可持续土地利用，因为土壤是减少城市脆弱性的重要自然资源，例如气候变化、节能和自然灾害。从这个角度来看，本文旨在支持地方决策者确定最容易改造的城市地区的部分和建筑物，以根据物理和功能特征促进可持续的土地利用。提议的方法结合了城市住区的 3D 建模和城市转型政府采用的基于绩效的方法，通过城市增长动态与城市整体效率之间的兼容平衡来保证供需比的满足。测试区域是戈佐岛，由于新马耳他-戈佐岛隧道的建设，这里将发生重大的城市转型。