交通承载力评估在密度分区及容积率测算中的方法研究及应用实践--以深圳为例

交通承载力作为科学确定城市密度分区的重要影响因素,目前尚未引起足够重视。深圳在新一轮城市密度分区调整优化研究中,将交通系统作为评估密度分区和地块客积率测算的定量分析指标,分别从宏观层面、中观层面和微观层面,系统建立了交通承载力和城市开发强度之间的互动评估模型,并在方案编制前、中、后不同阶段采用静态交通评估和动态交通评估相结合的技术手段,通过反复迭代和评估测试,最终确定基于未来交通规划方案基础上的深圳市新一轮密度分区方案以及不同用地类型的地块基准容积率。密度分区视角下的交通定量评估理论和技术方法,有利于促进城市用地和交通系统的协调发展,为大城市密度分区决策提供科学依据,同时也可以为国内外城市提供借鉴和参考。

A Research on Method and Application of Traffic Carrying Capacity Evaluation in Density Zoning and FAR Measurement--Taking Shenzhen as an Example

Though an important factor for scientifically defining urban density zones,traffic carrying capacity has not received sufficient attention at present.In Shenzhen's new round of research on urban density zoning adjustment and optimization,the transportation system is used as a quantitative indicator to evaluate density zoning and plot FAR while interactive evaluation models of traffic carrying capacity and urban development intensity have been systematically established at the macro,the meso,and the micro level respectively.The technical method of combining static traffic assessment and dynamic traffic assessment is adopted before,during and after the preparation of the plan.Through repeated iterations and evaluation tests,a new round of Shenzhen's density zoning plan based on the future transport planand the benchmark plot FAR with different land types are finally determined.The theory and technical methods of quantitative traffic assessment from the perspective of density zoning can promote the coordinated development of urban land and transport system,provide scientific basis for decisiomaking on density zoning of large cities for cities worldwide.