测量不可测的:与可步行性相关的城市设计品质

本研究试图全面客观地衡量城市街道环境的与人们感受有关的品质.使用专家小组评级的方法,使得根据街道及其边缘的物质环境特征来衡量城市设计的五个品质——意象、围合空间、人的尺度、透明度和复杂性——成为可能.可操作的定义并不总与定性的定义相一致,可操作定义针对城市设计品质(urban design qualities)的性质提供了新见解.本研究的直接目的是为研究者提供(这五个城市设计品质的)可操作性定义,这样他们可以测量街道环境并测试其与步行行为之间的显著性联系.纽约市目前正在进行验证研究.最终目的是,根据本研究和其他后续研究的成果,来指导城市设计实践.

Measuring the Unmeasurable:Urban Design Qualities Related to Walkability

This study attempts to comprehensively and objectively measure subjective qualities of the urban street environment.Using ratings from an expert panel,it was possible to measure five urban design qualities in terms of physical characteristics of streets and their edges:imageability,enclosure,human scale,transparency and complexity.The operational definitions do not always comport with the qualitative definitions,and provide new insights into the nature of these urban design qualities.The immediate purpose of this study is to arm researchers with operational definitions they can use to measure the street environment and test for significant associations with walking behaviour.A validation study is currently underway in New York City.Depending on the outcome of this and other follow-up research,the ultimate purpose would be to inform urban design practice.