A method, device and electronic equipment for improving the vitality of urban street space

Abstract

The application discloses a kind of urban street space vitality promotion reconstruction method, device and electronic equipment, to the interrelation analysis between building space, external space and the basic analysis unit of street such as each other as starting point, discuss the street vitality promotion reconstruction strategy based on its topological relationship, distance scale, terrain information and industry information such as information quantization analysis, establish spatial correlation degree model, the subjective evaluation of street space present situation and reconstruction design is quantified objectively, it is convenient for designer to analyze, adjust design direction.Therefore, by implementing the application, to replace purely subjective aesthetic evaluation with rational analysis, improve the implementability of street space vitality promotion reconstruction result.

Description

A method, device, and electronic equipment for revitalizing and transforming urban street spaces. Technical Field

[0001] This invention relates to the field of urban street planning technology, specifically to a method, device, and electronic equipment for enhancing and transforming urban street space vitality. Background Technology

[0002] Street vitality is a complex system involving the interaction and interplay of various factors such as street scale, building interface, accessibility and spatial availability, existing topography, business types, and population characteristics. However, individual buildings along the street and their external spaces constitute the most basic material space of the street. They are the hard interface and material foundation that determine the level of street vitality and are the basic analytical unit for street space design.

[0003] The current situation of urban spatial design is becoming increasingly complex. Both street spaces themselves and the various elements they contain are deeply embedded in the urban environment. Design and research should expand their perspective to include adjacent buildings and public spaces such as streets and squares, studying them as a complex system. In addition, the urban environment contains a vast amount of information, with multiple elements coupled and related. Existing technologies have a strong tendency for subjective judgment and fail to integrate and consider multiple information elements, resulting in poor objectivity in design results. Summary of the Invention

[0004] In view of this, embodiments of the present invention provide a method, apparatus and electronic device for enhancing and transforming the vitality of urban street spaces, in order to solve the technical problem that the enhancement and transformation of urban street spaces in the prior art has strong subjective judgment, fails to integrate and consider multiple information elements, and has poor objectivity in design results.

[0005] The technical solution proposed in this invention is as follows:

[0006] In a first aspect, embodiments of the present invention provide a method for enhancing and revitalizing urban street spaces. This method includes: acquiring a first dataset representing basic analytical units of urban streets, wherein the basic analytical units include at least one architectural space basic analytical unit and at least one external space basic analytical unit; the first dataset includes topological relationships, distance scales, terrain information, and business information; establishing a spatial correlation model based on the at least one architectural space basic analytical unit and the at least one external space basic analytical unit, after evaluation using the topological relationships, distance scales, terrain information, and business information; determining a first spatial correlation degree for each architectural space basic analytical unit based on the at least one architectural space basic analytical unit, after processing using the spatial correlation model; determining a second spatial correlation degree for each external space basic analytical unit based on the at least one external space basic analytical unit, after processing using the spatial correlation model and a preset axis rule; and determining an urban street space revitalization enhancement and renovation scheme based on the first spatial correlation degree of each architectural space basic analytical unit and the second spatial correlation degree of each external space basic analytical unit.

[0007] In conjunction with the first aspect, in one possible implementation of the first aspect, before obtaining the first dataset representing the basic analysis unit of urban streets, the method further includes: determining the basic analysis unit of external space as the longest axis traversing the external space when any two points in the external space are mutually visible and connected by a direct line, wherein the external space contains at least one basic analysis unit of external space.

[0008] In conjunction with the first aspect, in another possible implementation of the first aspect, obtaining the topological relationship in the first dataset includes: determining target elements based on a preset urban street spatial scatter plot and a preset fitting degree; and determining the topological relationship based on the target elements.

[0009] In conjunction with the first aspect, in another possible implementation of the first aspect, based on the basic analysis unit of the building space and the basic analysis unit of the external space, and through evaluation of the topological relationship, the distance scale, the terrain information, and the business type information, a spatial correlation model is established, including: based on the topological relationship, the distance scale, the terrain information, and the business type information, processing is performed using the analytic hierarchy process to obtain the weight value of each type of information; based on the weight value of each type of information, the weight value of each basic analysis unit of the building space is determined; based on the weight value of each basic analysis unit of the building space, a building space correlation model is established; and based on the basic analysis unit of the external space and the building space correlation model, the spatial correlation model is established.

[0010] In conjunction with the first aspect, in another possible implementation of the first aspect, based on the at least one basic external space analysis unit, and after processing by the spatial correlation model and the preset axis rule, the second spatial correlation of each of the basic external space analysis units is determined, including: based on each vertex of the external space, calculating each longest straight line reaching other vertices / boundary segments; based on each longest straight line, processing by the external space merging method to obtain at least one target straight line; based on the at least one target straight line, processing by the spatial correlation model to determine the second spatial correlation of each of the basic external space analysis units.

[0011] In conjunction with the first aspect, in another possible implementation of the first aspect, a scheme for enhancing and renovating urban street space vitality is determined based on the first spatial correlation degree of each of the basic architectural space analysis units and the second spatial correlation degree of each of the basic external space analysis units. This includes: performing visualization processing on each of the basic architectural space analysis units based on the first spatial correlation degree to obtain architectural space visualization results; performing visualization processing on each of the basic external space analysis units based on the second spatial correlation degree to obtain external space visualization results; and determining a scheme for enhancing and renovating urban street space vitality based on the architectural space visualization results and the external space visualization results.

[0012] In conjunction with the first aspect, in another possible implementation of the first aspect, the method further includes: utilizing the urban street space vitality enhancement and renovation plan to enhance the vitality of urban street spaces.

[0013] Secondly, embodiments of the present invention provide an urban street space vitality enhancement and renovation device, comprising: an acquisition module for acquiring a first dataset representing basic analysis units of urban streets, wherein the basic analysis units of urban streets include at least one basic analysis unit of architectural space and at least one basic analysis unit of external space, and the first dataset includes topological relationships, distance scales, terrain information, and business information; an establishment module for establishing a spatial correlation model based on the at least one basic analysis unit of architectural space and the at least one basic analysis unit of external space, after evaluation by the topological relationships, the distance scales, the terrain information, and the business information; a first determination module for determining a first spatial correlation degree for each of the at least one basic analysis units of architectural space, after processing by the spatial correlation model; a second determination module for determining a second spatial correlation degree for each of the at least one basic analysis units of external space, after processing by the spatial correlation model and a preset axis rule; and a third determination module for determining an urban street space vitality enhancement and renovation scheme based on the first spatial correlation degree of each of the basic analysis units of architectural space and the second spatial correlation degree of each of the basic analysis units of external space.

[0014] Thirdly, embodiments of the present invention provide a computer-readable storage medium storing computer instructions for causing the computer to perform the urban street space vitality enhancement and renovation method as described in the first aspect and any one of the embodiments of the present invention.

[0015] Fourthly, embodiments of the present invention provide an electronic device, including: a memory and a processor, wherein the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the computer instructions to perform the urban street space vitality enhancement and transformation method as described in the first aspect and any one of the embodiments of the present invention.

[0016] The technical solution provided by this invention has the following effects:

[0017] The method for enhancing and revitalizing urban street spaces provided in this invention starts with the analysis of the interrelationships between basic street analysis units such as building space and external space. It explores strategies for enhancing street vitality based on quantitative analysis of information such as topological relationships, distance scales, terrain information, and business format information. A spatial correlation model is established to objectively quantify the subjective evaluation of the current state of street space and its renovation design, facilitating designers' analysis and adjustment of design directions. Therefore, by implementing this invention, rational analysis replaces purely subjective aesthetic evaluation, improving the feasibility of street space revitalization and renovation results. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 is a flowchart of a method for enhancing and transforming the vitality of urban street spaces according to an embodiment of the present invention;

[0020] Figure 2 is a topographic map of Nanbin Road provided according to an embodiment of the present invention;

[0021] Figure 3 is a topographic map of Nanbin Road provided according to an embodiment of the present invention;

[0022] Figure 4 is a visualization diagram of the external spatial correlation analysis of Changyuan West Street according to an embodiment of the present invention.

[0023] Figure 5A is a scatter plot of Changyuan West Street with a topology step count of 3 according to an embodiment of the present invention;

[0024] Figure 5B is a scatter plot of Changyuan West Street with a topology step count of 5 according to an embodiment of the present invention.

[0025] Figure 5C is a scatter plot of Changyuan West Street with a topology step count of 7 according to an embodiment of the present invention;

[0026] Figure 5D is a scatter plot of Changyuan West Street with a topology step count of 9 according to an embodiment of the present invention.

[0027] Figure 5E is a scatter plot of Changyuan West Street with a topology step count of 11 according to an embodiment of the present invention.

[0028] Figure 6 is a summary and weighting chart of model information based on the analytic hierarchy process according to an embodiment of the present invention;

[0029] Figure 7A is a preliminary axis model diagram of Nanbin Road provided according to an embodiment of the present invention;

[0030] Figure 7B is a simplified model diagram of the Nanbin Road axis provided according to an embodiment of the present invention;

[0031] Figure 8A is a diagram showing the effect of external space comprehensive correlation analysis according to an embodiment of the present invention;

[0032] Figure 8B is a diagram showing the effect of external spatial distance correlation analysis according to an embodiment of the present invention.

[0033] Figure 9A is a diagram showing the effect of architectural space correlation analysis from the perspective of a tourist, according to an embodiment of the present invention.

[0034] Figure 9B is a visualization of the architectural space correlation from a tourist's perspective, provided by an embodiment of the present invention.

[0035] Figure 10A is a diagram illustrating the effect of architectural space correlation analysis from the perspective of old town residents and property owners according to an embodiment of the present invention.

[0036] Figure 10B is a visualization of the spatial relationship between old town residents and property owners from the perspective of an embodiment of the present invention.

[0037] Figure 11 is a diagram showing the spatial selectivity analysis effect after the initial opening of the Changyuan West Street block according to an embodiment of the present invention.

[0038] Figure 12 is a schematic diagram of the spatial connection of the buildings around Changyuan West Street after renovation according to an embodiment of the present invention.

[0039] Figure 13 is a spatial selection analysis diagram of the Changyuan West Street block after the overall internal opening-up provided by an embodiment of the present invention.

[0040] Figure 14 is a diagram showing the effect of the optimized external space correlation analysis according to an embodiment of the present invention.

[0041] Figure 15 is an external space correlation analysis diagram after overall optimization according to an embodiment of the present invention;

[0042] Figure 16A is a scatter plot of the overall optimized external space topology of Changyuan West Street with a step count of 3 according to an embodiment of the present invention.

[0043] Figure 16B is a scatter plot of the overall optimized external space topology of Changyuan West Street with a step count of 5 according to an embodiment of the present invention.

[0044] Figure 16C is a scatter plot of the overall optimized external space topology of Changyuan West Street with a step count of 7 according to an embodiment of the present invention.

[0045] Figure 16D is a scatter plot of the overall optimized external space topology of Changyuan West Street with a step count of 9 according to an embodiment of the present invention.

[0046] Figure 16E is a scatter plot of the overall optimized external space topology of Changyuan West Street with 11 steps according to an embodiment of the present invention.

[0047] Figure 17 is a structural block diagram of an urban street space revitalization and renovation device according to an embodiment of the present invention;

[0048] Figure 18 is a schematic diagram of the structure of a computer-readable storage medium provided according to an embodiment of the present invention;

[0049] Figure 19 is a schematic diagram of the structure of an electronic device according to an embodiment of the present invention. Detailed Implementation

[0050] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0051] This invention provides a method for enhancing the vitality of urban street spaces, using the renovation design of the old West Street in Changyuan City, Henan Province (hereinafter referred to as West Street) and the renovation design of Nanbin Road in Chongqing (hereinafter referred to as Nanbin Road) as examples.

[0052] As shown in Figure 1, the method includes the following steps:

[0053] Step 101: Obtain the first dataset representing the basic analytical units of city streets.

[0054] Among them, the individual buildings along the street and their external spaces constitute the most basic material space of the street. They are the hard interface and material foundation that determines the vitality of the street and are the basic analytical units for street space design. They can include at least one basic analytical unit of building space and at least one basic analytical unit of external space. The first dataset includes topological relationships, distance scales, terrain information and business information.

[0055] Furthermore, the basic analysis unit for architectural space can be any shop inside a city street; the basic analysis unit for external space can be a square, street, etc.

[0056] Step 102: Based on the at least one basic analysis unit of building space and the at least one basic analysis unit of external space, and through the evaluation of the topological relationship, the distance scale, the terrain information and the business information, establish a spatial correlation model.

[0057] Specifically, "spatial connectivity" is a quantitative description of the degree of functional connection between the two sides of a street, representing the way densely packed street-front shops are connected. It affects the number of choices visitors can make in the same time and space while walking along the street. The core of the "functional connectivity" algorithm is the "steps," which is the connection that a specific analysis unit (usually an independent shop) has influencing its surrounding units. When applied to urban spaces, it is necessary to establish a corresponding spatial connectivity model based on information such as the topological relationships, distance scales, topography, and business functions of the analysis units.

[0058] Furthermore, topological relationships are the basic structure of this spatial correlation model, which is the number of topological relationships after eliminating the influence of factors such as spatial distance, terrain, and business type. It is generally applicable to spaces with large differences in the actual size of the analysis units but relatively close connections, and helps to eliminate the influence of spatial distance.

[0059] Specifically, when the street analysis units are relatively homogeneous and have little functional difference, such as small-scale streets with dense shops, the distance between analysis units becomes an important structure of the spatial correlation model. It can be determined based on the street scale, shop frontage and depth information obtained from the field survey. For example, in the old city of Changyuan, the walking distance within 50m is mainly determined based on the urban scale, which indicates that there is a direct connection between the corresponding analysis units.

[0060] Furthermore, the topographic structure of the spatial correlation model can be determined based on the natural elements such as topography and water bodies that are to be retained. That is, the topographic structure corresponding to the natural elements such as topography and water bodies that are to be retained is used as the topographic structure of the spatial correlation model.

[0061] In one example, Nanbin Road is mainly affected by the terrain. Therefore, the connection relationship of the analysis unit can be determined based on whether there is a platform directly connected to it and a direct connection that crosses the contour line, as shown in Figures 2 and 3, which are the current topographic map and the current topographic information map of Nanbin Road, respectively.

[0062] Furthermore, the degree of business format correlation can be obtained based on the closeness of the functional connections between the various analysis units of the street. Therefore, when using the spatial correlation model for analysis, the rationality of the current spatial business format layout of the street can be determined.

[0063] Step 103: Based on the at least one basic architectural space analysis unit, and after processing by the spatial correlation model, determine the first spatial correlation degree of each basic architectural space analysis unit.

[0064] Specifically, by performing correlation analysis on at least one basic architectural space analysis unit based on the spatial correlation model, the spatial correlation of each basic architectural space analysis unit in the urban street space can be obtained.

[0065] Step 104: Based on the at least one external space basic analysis unit, and after processing by the spatial correlation model and the preset axis rule, determine the second spatial correlation of each external space basic analysis unit.

[0066] Specifically, external space differs significantly from architectural space, which greatly impacts the establishment and visualization of spatial correlation models. First, streets and plazas in external space lack hard boundaries, making it impossible to clearly define analysis units and presenting a relationship of interconnection and inclusion. Second, the correlation information weights of external space analysis units differ from those in architectural space; their topological relationships are more ambiguous, with distance and terrain correlation being dominant, exhibiting a pattern of distance correlation > terrain correlation > topological correlation > business type correlation. Finally, the distance correlation of external space includes two dimensions: route accessibility and visual accessibility, both of which significantly influence the quality of street space.

[0067] Therefore, by using the spatial correlation model and the preset axis rule to analyze and process at least one basic external spatial analysis unit, the spatial correlation of each basic external spatial analysis unit in the urban street space can be obtained.

[0068] Step 105: Based on the first spatial correlation degree of each of the basic analysis units of the building space and the second spatial correlation degree of each of the basic analysis units of the external space, determine the urban street space vitality enhancement and renovation plan.

[0069] Specifically, the first spatial correlation degree of each basic analysis unit of building space and the second spatial correlation degree of each basic analysis unit of external space are used as important evaluation criteria for the analysis of the current status of urban street space and the analysis of design results to determine the urban street space vitality enhancement and renovation plan. This replaces purely subjective aesthetic evaluation with moderately rational analysis, further improving the feasibility of the urban street space vitality enhancement and renovation results.

[0070] The method for revitalizing urban street spaces provided in this invention starts with the analysis of the interrelationships between basic street analysis units such as building space and external space. It explores strategies for revitalizing streets based on quantitative analysis of information such as topological relationships, distance scales, terrain information, and business information. It attempts to establish a spatial correlation model to objectively quantify subjective judgments about the current state of street space and renovation design, facilitating designers' analysis and adjustment of design directions. Therefore, by implementing this invention, rational analysis replaces purely subjective aesthetic evaluation, improving the feasibility of street space revitalization and renovation results.

[0071] As an optional implementation of the present invention, before step 101, the method further includes: when any two points in the external space are mutually visible and connected by a direct line, determining the basic analysis unit of the external space as the longest axis traversing the external space.

[0072] The external space includes at least one basic external space analysis unit.

[0073] Specifically, the basic analysis unit of external space is generated based on "axis." The principle is as follows: if any two points in the external space are mutually visible and reachable by a straight line, then this "convex space" can be replaced by the longest axis that traverses the entire space. While maintaining the connection relationships between convex spaces, using the longest and fewest axes to connect all convex spaces transforms the spatial system within the area into an axis diagram, as shown in Figure 4, which is a schematic diagram of the current external spatial correlation analysis and visualization of Changyuan West Street. Furthermore, by analyzing the changes in the external space axis diagram before and after urban renewal, the extent to which the design enhances the richness of the urban external environment can be perceived.

[0074] As an optional implementation of this invention, obtaining the topological relationships in the first dataset includes: determining target elements based on a preset urban street spatial scatter plot and a preset fitting degree; and determining the topological relationships based on the target elements.

[0075] Specifically, the number of steps required to establish a connection relationship, i.e., a topological relationship, can be determined by using a scatter plot of global elements and the fit.

[0076] The analysis method can be:

[0077] (1) The default number of analysis steps n is infinite, which means that all analysis units in the world are included in the topology analysis and the average number of global topology values ​​of each analysis unit is calculated.

[0078] (2) Assuming the number of analysis steps is 3, 5, 7, 9, 11, you can choose according to the actual situation and calculate the topological value of each analysis unit under the assumed number of steps in turn;

[0079] (3) Based on the calculation results of each analysis unit, a scatter plot is established. The horizontal axis is set to the global topological value average, and the vertical axis is set to the topological value of the assumed step number, such as Integration R3, Integration R5, Integration R7, Integration R9, Integration R11, etc., and rearranged according to the order of the global topological value average.

[0080] (4) Based on the scatter plot, calculate and obtain the three options: scatter plot trend line, mimicry formula y = ax + b, and fit degree R2, and observe them. The trend line is calculated based on the principle that the sum of the distances from all points in the scatter plot to the straight line is the shortest, which intuitively simulates the overall trend of the scatter plot. The mimicry formula is the calculation formula for a straight line. The fit degree expresses the degree of approximation of the scatter plot trend by using a straight line. In statistics, it is generally believed that the fit degree is good when R2 is above 0.5, and very good when R2 is above 0.7.

[0081] In one example, analyzing the scatter plot of Changyuan West Street reveals a poor fit when the number of steps is low, failing to accurately reflect the overall integration. This is because the functions on both sides of the street are densely packed, the spatial scale is small, and the street remains unchanged. Although topological analysis can ignore the influence of spatial distance, the straight and uniform shape still necessitates a higher number of analysis steps. Even with 11 analysis steps, the fit remains below 0.7. To avoid overly dense connections leading to slow computation, a step count of 7, where the fit exceeds 0.5, is used as the connection criterion.

[0082] Among them, the scatter plots of Changyuan West Street are shown in Figures 5A to 5E, which represent the scatter plots when the topological steps are 3, 5, 7, 9, and 11, respectively.

[0083] As an optional implementation of this invention, step 102 includes: processing the topological relationship, the distance scale, the terrain information, and the business information using the analytic hierarchy process to obtain the weight value of each type of information; determining the weight value of each of the basic architectural space analysis units based on the weight value of each type of information; establishing an architectural space correlation model based on the weight value of each of the basic architectural space analysis units; and establishing the spatial correlation model based on the basic external space analysis units and the architectural space correlation model.

[0084] Specifically, for the four types of correlation information in the model—topology, distance, terrain, and business type—the importance can be weighed using the YAAHP (Analytic Hierarchy Process), assigning different weights to each type of information to form the final value of each basic analytical unit of the building space, and establishing the corresponding building space correlation model. Furthermore, external space also has a significant impact on the establishment of the spatial correlation model; therefore, based on the building space correlation model, considering the basic analytical units of external space, a spatial correlation model is established.

[0085] In the renovation design of West Street in Changyuan Old Town, based on on-site survey and analysis, due to the large differences in the scale of its analysis units, including a central shopping mall of 4-5 floors and small shops of 1-2 floors, its topological correlation is relatively important. In addition, some shops are homogeneously distributed in the western and central parts of West Street, and there are certain problems with the terrain platform and business formats. Therefore, the importance ranking is topological correlation > distance correlation > business format correlation > terrain correlation. The score ratio can be obtained by comprehensive weighing the judgment matrix, as shown in Figure 6.

[0086] As an optional implementation of this invention, step 104 includes: calculating each longest straight line reaching other vertices / boundary segments based on each vertex of the external space; processing each longest straight line using an external space merging method to obtain at least one target straight line; and determining the second spatial correlation degree of each basic analysis unit of the external space based on the at least one target straight line using the spatial correlation model.

[0087] Specifically, the external spatial correlation is established based on the "axis" rule: taking each vertex of the spatial boundary as an element, the longest straight line that passes through this vertex and reaches other vertices or boundary segments is calculated. The initial image is not presented according to the principle of the simplest. Furthermore, through a principle similar to external space merging, redundant axes are deleted to obtain mathematically strict "longest and least" axes, simplifying the image, as shown in Figures 7A and 7B, which are the initial axis model diagram and the simplified axis model diagram of Nanbin Road, respectively.

[0088] Furthermore, the external spatial comprehensive correlation analysis represents the spatial situation under global calculation, while the external spatial distance correlation analysis represents the activity level of the space in the system. The latter simply represents the length of the axis and the scale of the space, as shown in Figures 8A and 8B, respectively.

[0089] As an optional implementation of this invention, step 105 includes: performing visualization processing on each of the basic architectural space analysis units based on a first spatial correlation degree to obtain architectural space visualization results; performing visualization processing on each of the basic external space analysis units based on a second spatial correlation degree to obtain external space visualization results; and determining an urban street space vitality enhancement and renovation plan based on the architectural space visualization results and the external space visualization results.

[0090] Specifically, the visualization results of the external space can be seen in Figure 4.

[0091] After establishing the spatial correlation model, the numerical values ​​(first spatial correlation) can be fed back into the street map to complete the visualization of the indoor space, so as to more accurately locate the global relationship of each store.

[0092] Among them, spatial correlation can be neglected for the integrity of the system. The existence of isolated analysis units does not affect the accuracy of the analysis results of the rest. It can be used to express spaces that are weakly or unconnected to the main space. For example, the houses inside the Changyuan West Street block are not open to tourists, so their spatial correlation can be excluded and become isolated elements.

[0093] In one instance, since most of the shop owners on Changyuan West Street are also local residents, most of them still maintain the living habits of having shops in the front and living rooms in the back, and shops downstairs and living rooms upstairs. Therefore, different groups of people have different perceptions of the street. The model construction and visualization analysis of the indoor space correlation can be carried out from the perspectives of tourists (as shown in Figures 9A and 9B) and local residents (as shown in Figures 10A and 10B).

[0094] Furthermore, through spatial correlation model analysis, the architectural space exhibits the following problems:

[0095] (1) Group cognitive bias: Analysis of the current situation of West Street reveals that from the tourist's perspective (Figure 9B), due to the linear distribution of shops, the analysis unit is only distributed along the street, resulting in a relatively singular perception of spatial relationships. However, from the perspective of residents and shop owners (Figure 10B), their choice is slightly better because some areas are accessible from within the blocks. This will lead to a decrease in the old town's attractiveness to outsiders, while relying solely on the original residents faces problems such as insufficient consumption power, insufficient willingness to renovate, and a decline in spatial quality.

[0096] (2) Differences in commercial vitality: The current situation analysis shows that the intersection of the eastern section of West Street with Central Street and County Front Street is located in the core of the old city, with more convenient transportation and a large shopping mall business model. The flow of people is high and the commercial atmosphere is strong. However, from the perspective of architectural correlation analysis, this area is weakly connected with other places and presents an isolated situation. Its vitality cannot be utilized by more street shops in the western and middle sections of West Street, resulting in huge differences in the vitality of the entire street. The eastern side is crowded and the other areas are gradually becoming desolate.

[0097] The external space has the following problems:

[0098] (1) Monotonous spatial structure: The building facades on West Street are too close to the street, the building interfaces are relatively rigid, and the concave and convex features are not rich enough, resulting in a monotonous street structure, a monotonous way of walking and visual experience, a distorted scale, and a decrease in spatial attractiveness. This results in a large amount of through traffic and a loss of the feeling of a pedestrian street (Figure 4).

[0099] (2) Insufficient vitality linkage: West Street is mainly composed of east-west convex spaces, with a small number of other convex spaces. The commercial foundation of County Front Street and Central Street is even weaker, resulting in a weak connection with the external space of the area. People only move along West Street and ignore the surrounding side roads. West Street itself lacks vitality and cannot revitalize the surrounding area (Figure 4).

[0100] Therefore, by combining the above issues and using the visualization processing results, a plan for enhancing and revitalizing urban street spaces can be determined, and the enhancement of urban street space vitality can be completed, including:

[0101] (1) Connecting the rear buildings of the street: Through the gradual opening up of the internal spatial units of the block (as shown in Figure 11), the street-side spatial units are gradually upgraded, and the external space with high pedestrian traffic corresponds better with the vitality of the shops. After the long-term renovation and transformation is completed, the internal part of the block will be completely connected (as shown in Figure 12). It can be seen that a new vitality center has been formed in the middle section of West Street (as shown in Figure 13), which corresponds to the vicinity of the old No.1 Middle School entrance. This place has been selected as the Changyuan Old Town Renovation Command Center, the Exhibition and Education Center, and some private property renovation demonstration sites.

[0102] (2) Opening up surrounding external spaces: The design attempts to open up the encroached roads and gradually create more branch roads. After local optimization, the public space can extend to both sides of the street, the convex space increases, and the axis diagram becomes richer. In particular, several relatively open convex spaces are formed in the middle section of West Street, which increases the vitality of the street (as shown in Figure 14). After overall optimization, the convex space composition system is richer, and the street itself becomes a carrier of more diverse external spaces, further enhancing the richness and vitality of the external space from both visual and activity dimensions (as shown in Figure 15).

[0103] (3) Balancing the number of topological steps in external space: Although the topological correlation of external space has a low impact, its scatter plot analysis can be treated as a special project, which determines the ease or difficulty of finding a way when people move through urban space. If the number of topological steps is too high, the difficulty of finding a way will be too great, and some areas will be difficult to reach, resulting in reduced vitality. If the number of topological steps is too low, the streets will be visible at a glance, making it difficult to form a vibrant cluster in a local area.

[0104] The analysis revealed that the goodness of fit was above 0.5 when the number of topology steps was 3, and above 0.7 when the number of topology steps was 5. To ensure accurate analysis and avoid excessive system complexity affecting calculations, it was determined that elements within 5 steps could establish connections. Therefore, the number of topology steps in the external space of Changyuan West Street should be maintained at around 5 during the renovation process, which satisfies the need for rich street space while avoiding excessive difficulty in pathfinding (as shown in Figures 16A-16E, which represent scatter plots of the external space topology steps of Changyuan West Street after overall optimization when they are 3, 5, 7, 9, and 11, respectively).

[0105] By establishing a correlation model and using weighting methods, multiple information elements are integrated and considered as important criteria for evaluating the current status of street space and the design results. This approach replaces purely subjective aesthetic evaluation with moderately rational analysis, thereby enhancing the vitality of street space and improving the feasibility of design outcomes.

[0106] This invention also provides a device for revitalizing urban street spaces, as shown in Figure 17. The device includes:

[0107] The acquisition module 201 is used to acquire a first dataset representing basic analysis units of urban streets. The basic analysis units of urban streets include at least one basic analysis unit of building space and at least one basic analysis unit of external space. The first dataset includes topological relationships, distance scales, terrain information and business information. For details, please refer to the relevant description of step 101 in the above method embodiment.

[0108] Module 202 is used to establish a spatial correlation model based on the at least one basic analysis unit of building space and the at least one basic analysis unit of external space, through the evaluation of topological relationships, distance scales, terrain information and business information; for details, please refer to the relevant description of step 102 in the above method embodiment.

[0109] The first determining module 203 is used to determine the first spatial correlation degree of each of the at least one basic architectural space analysis units after processing by the spatial correlation degree model; for details, please refer to the relevant description of step 103 in the above method embodiment.

[0110] The second determining module 204 is used to determine the second spatial correlation degree of each of the at least one external spatial basic analysis units after processing by the spatial correlation degree model and the preset axis rule; for details, please refer to the relevant description of step 104 in the above method embodiment.

[0111] The third determining module 205 is used to determine the urban street space vitality enhancement and renovation plan based on the first spatial correlation degree of each of the building space basic analysis units and the second spatial correlation degree of each of the external space basic analysis units; for details, please refer to the relevant description of step 105 in the above method embodiment.

[0112] The urban street space revitalization and renovation device provided in this invention takes the interrelationship analysis between basic street analysis units such as building space and external space as its starting point. It explores street revitalization and renovation strategies based on quantitative analysis of information such as topological relationships, distance scales, terrain information, and business format information. It attempts to establish a spatial correlation model to objectively quantify the subjective judgments of the current state of street space and renovation design, facilitating designers' analysis and adjustment of design directions. Therefore, by implementing this invention, rational analysis replaces purely subjective aesthetic evaluation, improving the feasibility of street space revitalization and renovation results.

[0113] As an optional embodiment of the present invention, the device further includes: a fourth determining module, used to determine that the basic analysis unit of the external space is the longest axis traversing the external space when any two points in the external space are mutually visible and connected by a direct line, wherein the external space contains at least one basic analysis unit of the external space.

[0114] As an optional implementation of this invention, the acquisition module includes: a first determining submodule, used to determine target elements based on a preset urban street spatial scatter plot and a preset fitting degree; and a second determining submodule, used to determine the topological relationship based on the target elements.

[0115] As an optional implementation of this invention, the establishment module includes: a first processing submodule, used to obtain the weight value of each type of information by processing it through the hierarchical analysis method based on the topological relationship, the distance scale, the terrain information, and the business information; a third determining submodule, used to determine the weight value of each of the basic architectural space analysis units based on the weight value of each type of information; a first establishment submodule, used to establish an architectural space correlation model based on the weight value of each of the basic architectural space analysis units; and a second establishment submodule, used to establish the spatial correlation model based on the basic external space analysis units and the architectural space correlation model.

[0116] As an optional implementation of this invention, the second determining module includes: a calculation submodule, used to calculate each longest straight line reaching other vertices / boundary segments based on each vertex of the external space; a second processing submodule, used to process each longest straight line using an external space merging method to obtain at least one target straight line; and a third processing submodule, used to determine the second spatial correlation degree of each of the basic analysis units of the external space based on the at least one target straight line using the spatial correlation model.

[0117] As an optional implementation of this invention, the third determining module includes: a fourth processing submodule, used to perform visualization processing on each of the basic architectural space analysis units based on a first spatial correlation degree, to obtain architectural space visualization results; a fifth processing submodule, used to perform visualization processing on each of the basic external space analysis units based on a second spatial correlation degree, to obtain external space visualization results; and a fourth determining submodule, used to determine an urban street space vitality enhancement and renovation plan based on the architectural space visualization results and the external space visualization results.

[0118] As an optional implementation of the present invention, the device further includes: an execution module, used to utilize the urban street space vitality enhancement and renovation scheme to complete the enhancement of urban street space vitality.

[0119] For a detailed description of the functions of the urban street space vitality enhancement and renovation device provided in the embodiments of the present invention, please refer to the description of the urban street space vitality enhancement and renovation method in the above embodiments.

[0120] This invention also provides a storage medium, as shown in FIG18, on which a computer program 301 is stored. When executed by a processor, this program implements the steps of the urban street space vitality enhancement and renovation method described in the above embodiments. The storage medium may be a magnetic disk, optical disk, read-only memory (ROM), random access memory (RAM), flash memory, hard disk drive (HDD), or solid-state drive (SSD), etc.; the storage medium may also include combinations of the above types of memory.

[0121] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. The storage medium can be a magnetic disk, optical disk, read-only memory (ROM), random access memory (RAM), flash memory, hard disk drive (HDD), or solid-state drive (SSD), etc.; the storage medium can also include combinations of the above types of memory.

[0122] This invention also provides an electronic device, as shown in FIG19. The electronic device may include a processor 41 and a memory 42, wherein the processor 41 and the memory 42 may be connected by a bus or other means. FIG19 shows an example of connection by a bus.

[0123] Processor 41 can be a central processing unit (CPU). Processor 41 can also be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or combinations of the above types of chips.

[0124] The memory 42, as a non-transitory computer-readable storage medium, can be used to store non-transitory software programs, non-transitory computer-executable programs, and modules, such as the corresponding program instructions / modules in the embodiments of the present invention. The processor 41 executes various functional applications and data processing by running the non-transitory software programs, instructions, and modules stored in the memory 42, thereby realizing the urban street space vitality enhancement and transformation method in the above method embodiments.

[0125] The memory 42 may include a program storage area and a data storage area. The program storage area may store applications required for operating the device and at least one function; the data storage area may store data created by the processor 41, etc. Furthermore, the memory 42 may include high-speed random access memory and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid-state storage device. In some embodiments, the memory 42 may optionally include memory remotely located relative to the processor 41, and these remote memories may be connected to the processor 41 via a network. Examples of such networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.

[0126] The one or more modules are stored in the memory 42. When executed by the processor 41, they perform the urban street space vitality enhancement and renovation method shown in the embodiment of Figure 1-16E.

[0127] The specific details of the above-mentioned electronic device can be understood by referring to the relevant descriptions and effects in the embodiments shown in Figures 1 to 16E, and will not be repeated here.

[0128] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and all such modifications and variations fall within the scope defined by the appended claims.

Claims

1. A method for revitalizing and transforming urban street spaces, characterized in that, The method includes: acquiring a first dataset representing basic analytical units of urban streets, wherein the basic analytical units of urban streets include at least one basic analytical unit of architectural space and at least one basic analytical unit of external space, and the first dataset includes topological relationships, distance scales, terrain information, and business information; based on the at least one basic analytical unit of architectural space and the at least one basic analytical unit of external space, and after evaluation by the topological relationships, the distance scales, the terrain information, and the business information, establishing a spatial correlation model, wherein spatial correlation is a quantitative description of the degree of functional connection between the two sides of a street, representing the connection mode between densely packed street-front shops, which affects the number of choices that visitors walking on the street can make in the same time and space; based on the at least one basic analytical unit of architectural space, and after processing by the spatial correlation model, determining the first spatial correlation of each basic analytical unit of architectural space; based on the at least one basic analytical unit of external space, and after processing by the at least one basic analytical unit of architectural space, determining the first spatial correlation of each basic analytical unit of architectural space; and based on the at least one basic analytical unit of external space, after processing by the at least one basic analytical unit of architectural space, determining the first spatial correlation of each basic analytical unit of architectural space. The spatial correlation model and the preset axis rule are used to determine the second spatial correlation of each of the basic external spatial analysis units. Based on the first spatial correlation of each of the basic architectural spatial analysis units and the second spatial correlation of each of the basic external spatial analysis units, a scheme for enhancing and transforming the vitality of urban street spaces is determined. Specifically, based on the basic architectural spatial analysis units and the basic external spatial analysis units, and after evaluation of the topological relationships, distance scales, terrain information, and business information, a spatial correlation model is established, including: based on the topological relationships, distance scales, terrain information, and business information, processing using the analytic hierarchy process to obtain the weight value of each type of information; determining the weight value of each of the basic architectural spatial analysis units based on the weight value of each type of information; establishing an architectural spatial correlation model based on the weight value of each of the basic architectural spatial analysis units; and establishing the spatial correlation model based on the basic external spatial analysis units and the architectural spatial correlation model.

2. The method according to claim 1, characterized in that, Before obtaining the first dataset representing the basic analysis unit of urban streets, the method further includes: when any two points in the external space are mutually visible and connected by a direct line, determining the basic analysis unit of the external space as the longest axis traversing the external space, wherein the external space contains at least one basic analysis unit of the external space.

3. The method according to claim 1, characterized in that, Obtaining the topological relationships in the first dataset includes: determining target elements based on a preset urban street spatial scatter plot and a preset fitting degree; and determining the topological relationships based on the target elements.

4. The method according to claim 2, characterized in that, Based on the at least one basic external space analysis unit, and after processing by the spatial correlation model and the preset axis rule, the second spatial correlation of each basic external space analysis unit is determined, including: calculating each longest straight line reaching other vertices / boundary segments based on each vertex of the external space; processing each longest straight line using the external space merging method to obtain at least one target straight line; and determining the second spatial correlation of each basic external space analysis unit based on the at least one target straight line using the spatial correlation model.

5. The method according to claim 1, characterized in that, Based on the first spatial correlation of each of the basic architectural space analysis units and the second spatial correlation of each of the basic external space analysis units, a scheme for enhancing and renovating the vitality of urban street spaces is determined, including: visualizing each of the basic architectural space analysis units based on the first spatial correlation of each of the basic architectural space analysis units to obtain architectural space visualization results; visualizing each of the basic external space analysis units based on the second spatial correlation of each of the basic external space analysis units to obtain external space visualization results; and determining a scheme for enhancing and renovating the vitality of urban street spaces based on the architectural space visualization results and the external space visualization results.

6. The method according to claim 5, characterized in that, The method also includes: using the urban street space vitality enhancement and renovation plan to enhance the vitality of urban street spaces.

7. A device for revitalizing and transforming urban street spaces, characterized in that, The device includes: an acquisition module for acquiring a first dataset representing basic analysis units of urban streets, the basic analysis units of urban streets including at least one basic analysis unit of architectural space and at least one basic analysis unit of external space, the first dataset including topological relationships, distance scales, terrain information, and business information; an establishment module for establishing a spatial correlation model based on the at least one basic analysis unit of architectural space and the at least one basic analysis unit of external space, after evaluation by the topological relationships, the distance scales, the terrain information, and the business information, wherein spatial correlation is a quantitative description of the degree of functional connection between the two sides of the street, representing the connection mode between densely packed street shops, which affects the number of choices that visitors walking on the street can make in the same time and space; a first determination module for determining the first spatial correlation of each basic analysis unit of architectural space based on the at least one basic analysis unit of architectural space, after processing by the spatial correlation model; and a second determination module for... Based on the at least one basic external space analysis unit, and after processing with the spatial correlation model and the preset axis rule, a second spatial correlation degree is determined for each basic external space analysis unit; a third determining module is used to determine a scheme for enhancing and transforming urban street space vitality based on the first spatial correlation degree and the second spatial correlation degree of each basic building space analysis unit; wherein, the establishing module includes: a first processing submodule, used to obtain the weight value of each type of information by processing with the analytic hierarchy process based on the topological relationship, the distance scale, the terrain information, and the business information; a third determining submodule, used to determine the weight value of each basic building space analysis unit based on the weight value of each type of information; a first establishing submodule, used to establish a building space correlation model based on the weight value of each basic building space analysis unit; and a second establishing submodule, used to establish the spatial correlation model based on the basic external space analysis unit and the building space correlation model.

8. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions for causing the computer to perform the urban street space revitalization and transformation method as described in any one of claims 1 to 6.

9. An electronic device, characterized in that, include: The system includes a memory and a processor, which are interconnected. The memory stores computer instructions, and the processor executes the computer instructions to perform the urban street space revitalization and transformation method as described in any one of claims 1 to 6.

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