Currently China's urban sprawl, simplified functional zoning, as well as car-oriented space design have caused increased individual motorized travel, low efficiency of public transportation, and poor condition for the pedestrian. Therefore, a 3D land-use development mode is put forward in this paper, which stresses land-use density, land-use diversity and pedestrian-friendly site design combining with the transit corridor. Then taking the land-use mode along the MTR (mass transit railway) of Hong Kong, the Huadu CBD of Guangzhou as the references, with the utilization of "3D" concept, the development mode with land-use density, land-use diversity and site design along the area around railway is proposed, and the feasibility of this mode is explored.%基于我国当前城市空间蔓延、功能分区单一以及“以车为本”的场所设计带来的个体机动化出行增加、公共交通效率低下、步行环境欠佳等问题,提出需要建立沿公交走廊的密度点轴结合发展(density)、用地混合多元布局(diversity)以及步行友好场所设计(design)的用地“3D”发展模式,以减少机动化出行需求.在此思路下,借鉴香港地区轨道沿线用地发展经验,研究香港实现“3D”模式的具体方法与措施,并以广州花都CBD为例,运用“3D”理念,对花都CBD内轨道沿线的用地密度、混合度、场所进行规划设计,以探索城市用地“3D”发展模式在我国发展的适应性.
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