Abstract
Communities in urban space are the most basic living units. Community visual features directly reflect the local living quality and influence the perception of residents and visitors. The evaluation of the community visual features is of great significance to the space design under the guidance of urban landscape recognition and urban space perception. Based on the street view image data, this paper analyzes the composition of visual features in the community space scale by using the geographically weighted principal components analysis. GWPCA can not only reflect the global characteristics, but also analyze the local components, thus describing the visual features of the community in a comprehensive manner. The results show that: (1) community visual features have significant spatial heterogeneity at different statistical scales, and the spatial heterogeneity of community visual features can provide a basis for urban landscape planning and design; (2) the combination mode of dominant visual elements can reflect different community landscapes. The analysis of this paper further illustrates the effectiveness and application prospect of street view images in identifying the landscape composition mode of urban space from the medium-micro perspective. This conclusion is helpful for planners to learn the dominant visual features of the community through street view images, and, further, use the classification of elements of street view images to guide the planning and design of cityscape.
Highlights
Community is one of the most basic space units in a city, and it is the main place living and rest for urban residents in daily life
The visual appearance features of communities mainly refer to all kinds of things that can be seen in the local space of communities, including cars, bicycles and pedestrians which are dynamic as well as buildings, roads and plants which are static
Further analysis of the spatial distribution of load factors shows that the dominant load factors are trees, high-rise buildings, sidewalks and bicycles at grid of 100 m, trees, walls and ground at grid of 150 m and trees, high-rise buildings and ground at grid of
Summary
Community is one of the most basic space units in a city, and it is the main place living and rest for urban residents in daily life. The visual appearance features of communities mainly refer to all kinds of things that can be seen in the local space of communities, including cars, bicycles and pedestrians which are dynamic as well as buildings, roads and plants which are static. These factors affect the life experience of residents and the impression of tourists on the community
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