Exploring Quantitative Assessment Method for Coherence of Urban Appearance
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.
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