Exploring Quantitative Assessment Method for Coherence of Urban Appearance
Abstract：
Although “coherence” has been widely mentioned in urban
appearance assessment, few scholars have conducted systematic
studies or proposed objective and quantitative indicators. To fill this
gap, this paper first reviews the international theorie and literature
to establish a basic understanding of its concepts, principles, and
contents. Then, based on Caliskan’s morphometric framework, the
building characteristics of the houses are further considered and the
indicators of coherence, “consistency” and “proximity”, are calculated
using quantitative and visual methods. The case studies show that the
two “coherence” indicators effectively identified commonalities and
differences among houses in the district, and find that the influencing
factors include building type, age, layout, location, etc. The quantitative
assessment of the “coherence” for urban appearance not only provides
a new approach to conservation and renewal, but also helps to improve
the efficiency and reliability of planning and design decisions.