Abstract
Abstract. Urban architectural heritage as a part of cultural heritage, its surrounding buildings will have a certain visual impact on the cultural heritage itself. This paper presents a method for calculating visual impact and applies it to the field of urban architectural heritage. In this method, the visual radius and visual range are calculated based on the theoretical knowledge related to the range of human eye line of sight and the curvature of the earth, and then the visual projection plane is established. Then, through skyline analysis and spatial relationship calculation, the urban architectural heritage and its surrounding buildings are projected. Calculate the visual impairment index through the projection area and the projection surface area to quantify the visual impact. By calculating the visual impact in The Lama Temple area, it is proved that the method presented in this paper is effective and advanced in practical application.
Highlights
In 2015, the United Nations Sustainable Development Summit held in New York adopted 17 Sustainable Development Goals (SDGs), and its sub-goal 11.4 "Further efforts to protect and defend the world’s cultural and natural heritage" mentioned Sustainable development of cultural heritage (Chen et al, 2019)
As a method of evaluating the degree of impact of outstanding universal value (OUV) of cultural heritage, heritage impact evaluation has many similarities with the evaluation of the sustainable development status of cultural heritage. It is mentioned in the heritage impact evaluation that the authenticity and completeness of cultural heritage are important aspects of outstanding universal value
It can be seen that the evaluation of visual impact is very important in evaluating the sustainable development status of cultural heritage
Summary
In 2015, the United Nations Sustainable Development Summit held in New York adopted 17 Sustainable Development Goals (SDGs), and its sub-goal 11.4 "Further efforts to protect and defend the world’s cultural and natural heritage" mentioned Sustainable development of cultural heritage (Chen et al, 2019). As an important category of cultural heritage, architectural heritage has extremely high historical and cultural value, so it must be protected and inherited For this reason, it is important to evaluate the sustainable development status of architectural heritage. As a method of evaluating the degree of impact of outstanding universal value (OUV) of cultural heritage, heritage impact evaluation has many similarities with the evaluation of the sustainable development status of cultural heritage. Most foreign scholars use wind power plants as the research object to analyse their visual effects (Theocharis et al, 2009), and there are few studies related to cultural heritage. By evaluating the visual impact of urban architectural heritage, it provides an indicator for evaluating the sustainable development status of urban architectural heritage
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