Page 22 - JCAU-6-1

Journal of Chinese
Architecture and Urbanism Spatial exploration through image semantic segmentation

surfaces, buildings, and vegetation collectively dominate proportions. This situation suggests that, in modern streets,
the visual proportions within the streetscapes of historic the predominant components shaping individuals’ daily
streets, accounting for 37.35%, 25.14%, and 16.78%, perceptions are the streets themselves and the buildings
respectively. lining their sides.
When considering standard deviation, it becomes Examining the standard deviation, it becomes evident
apparent that these three factors undergo substantial that roads and buildings have higher standard deviations.
changes, indicating that the distribution of streets, This observation indicates that the visual sensory changes
buildings, and plants undergoes significant changes as associated with these two elements during movement are
individuals traverse these streets. This phenomenon may relatively more pronounced compared to other elements.
be attributed to the inclination of historic streets to retain Consequently, the distribution continuity of roads and
the spatial design variability and alterations, ultimately buildings appears weaker, while the distribution of other
striving to offer visitors a diverse spatial experience. elements exhibits a more uniform pattern.

2.5.2. Spatial features of the modern street (Street 2) 2.5.3. Comparison of spatial characteristics and
in Lu Xun’s hometown distribution of historic and modern streets in Lu Xun’s

Diverse distributions of various elements characterize hometown
modern streets when compared to historic streets. As Given the aforementioned data, conducting a comparison
depicted in Table 2, the visual space within the streetscapes of the proportion and standard deviation of each element
of modern streets is chiefly dominated by buildings and yielded interesting results.
roads, which constitute the largest proportions at 44.26% (a) Descriptive statistics
and 26.14%, respectively – significantly surpassing other
elements. People, vegetation, and the sky exhibit similar Based on the metrics presented in Table 3 and Figures 7-9,
it can be observed that the proportion of road surface in
historic streets significantly surpasses that in modern
Table 1. Spatial characteristics of historic streets in Lu Xun’s streets, indicating a wider expanse of road surfaces in
hometown
historic streets. On the other hand, the proportion of
Element N (Sum) M (Mean) Proportion Σ (Standard buildings in historic streets is notably lower than in
deviation) modern streets. Moreover, the proportion of people in
Road 2323166 48399 37.35% 109.55 modern streets slightly exceeds that in historic streets,
Building 1563750 32578 25.14% 116.08 suggesting a higher level of human activity in modern
Person 359149 7482 5.77% 81.25 streets under the specific sampling conditions of this study.
The proportions of other elements, such as vehicles, walls,
Transportation 78545 1636 1.26% 38.59
and signs, remain relatively low and stable, indicating a
Vegetation 1043739 21745 16.78% 116.05 uniform and essential distribution of these objects across
Wall 254123 5294 4.09% 52.84 general streets. Notably, the proportional differences imply
Sky 455256 9485 7.32% 68.30 that historic streets emphasize traditional culture, natural
Traffic Sign 143072 2981 2.30% 46.08 environment, and greenery, contributing to a pleasant
and comfortable spatial atmosphere. In contrast, modern
streets feature more buildings and a denser population,
Table 2. Spatial characteristics of modern streets in Lu Xun’s
hometown prioritizing the fulfillment of daily life needs.
Moving on to Table 4 and Figures 10-12, which presents
Element N (Sum) M (Mean) Proportion Σ (Standard standard deviation comparisons of element distributions in
deviation) historic and modern streets, it becomes apparent that, with
Road 1524219 33872 26.14% 112.96 the exception of people and vegetation, there is minimal
Building 2581022 57356 44.26% 121.15 variation in the standard deviations of other elements
Person 402311 8940 6.90% 75.94 between the two types of streets. This observation indicates
Transportation 90648 2014 1.55% 39.02 that these elements likely serve as integral components for
Vegetation 422113 9380 7.24% 78.07 individuals to engage with the urban space while walking
Wall 283589 6302 4.86% 65.16 along each street. The distribution difference in people in
historic streets surpasses that in modern streets, possibly
Sky 409553 9101 7.02% 70.08 due to historic streets offering more areas for visitors to
Traffic Sign 118545 2634 2.03% 48.42 pause and explore, encouraging people to linger and rest,

Volume 6 Issue 1 (2024) 5 https://doi.org/10.36922/jcau.1736