A Method and Device for Optimizing the Traffic Microcirculation Network in Urban Renewal

Abstract

The present invention discloses a method and device for optimizing a traffic microcirculation network in urban renewal. Based on the structural characteristics of at least one urban traffic road network, at least one first element is determined, and the first element reflects the first roads in the urban traffic road network that are not interrupted. Based on at least one first element and preset conditions, through topological depth calculation, the number of branch roads connected to each of the first roads is obtained. Based on at least one first element and the calculation results, a connectivity algorithm analysis model is established. Based on the connectivity algorithm analysis model, the urban traffic road network to be optimized is optimized to obtain an urban traffic target microcirculation network. By using the connectivity algorithm analysis model to optimize the urban traffic road network to be optimized, the connectivity of the main roads is improved by driving with branch roads, and the internal vitality of the road network is fully stimulated. Therefore, by implementing the present invention, the vitality and attractiveness of the road network are improved, and the problems of traffic microcirculation blockage and serious internal closure of the road network in the city are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of transportation, and particularly to a method and device for optimizing the traffic microcirculation network in urban renewal. Background Art

[0002] Due to poor management and insufficient supervision, the population in the historical blocks of small and medium-sized cities has seriously declined, the economic potential is relatively low, the development is relatively slow, the vitality and attractiveness of the blocks are low, the economic cycle is damaged, and the advantages of the original landscape and historical culture cannot be transformed into development impetus. Summary of the Invention

[0003] In view of this, embodiments of the present invention provide a method and device for optimizing the traffic microcirculation network in urban renewal to solve the technical problem in the prior art that the vitality and attractiveness of the blocks are low, the economic cycle is damaged, and the advantages of the original landscape and historical culture cannot be transformed into development impetus.

[0004] The technical solutions proposed by the present invention are as follows:

[0005] In a first aspect, embodiments of the present invention provide a method for optimizing the traffic microcirculation network in urban renewal. The method for optimizing the traffic microcirculation network in urban renewal includes: determining at least one first element based on the structural characteristics of at least one urban traffic road network, where the first element reflects the first roads in the urban traffic road network that are not interrupted; through topological depth calculation based on the at least one first element and preset conditions, obtaining the calculation result of each of the first roads, where the calculation result reflects the number of branch roads connected to each of the first roads; establishing a connectivity algorithm analysis model based on the at least one first element and the calculation result; and optimizing the urban traffic road network to be optimized based on the connectivity algorithm analysis model to obtain the target urban traffic microcirculation network.

[0006] In combination with the first aspect, in a possible implementation manner of the first aspect, optimizing the urban traffic road network to be optimized based on the connectivity algorithm analysis model to obtain the target urban traffic microcirculation network includes: obtaining the calculation result of each of the first roads in the urban traffic road network to be optimized through the connectivity algorithm analysis model based on the urban traffic road network to be optimized; dividing the calculation result of each of the first roads to obtain at least one division interval; performing visualization processing on each of the division intervals to obtain a visualization result; analyzing the road connectivity in the urban traffic road network to be optimized based on the visualization result to obtain a road connectivity result; and determining the target urban traffic microcirculation network based on the road connectivity result.

[0007] In combination with the first aspect, in another possible implementation manner of the first aspect, the method further includes: obtaining at least one second element, where the second element reflects a second road interrupted by an intersection in the urban traffic road network; based on each of the second elements, through a calculation method, obtaining the global road integration degree corresponding to the urban traffic road network; establishing a road network structure abstraction model based on each of the second elements and the global road integration degree; and optimizing the target microcirculation network of the urban traffic based on the road network structure abstraction model.

[0008] In combination with the first aspect, in another possible implementation manner of the first aspect, based on each of the second elements, through a calculation method, obtaining the global road integration degree corresponding to the urban traffic road network includes: based on each of the second elements, through a calculation method, obtaining the topological times required for each of the second elements to reach all other elements in the urban traffic road network, where each of the second elements is connected to the remaining elements at both ends; and determining the global road integration degree based on the topological times.

[0009] In combination with the first aspect, in another possible implementation manner of the first aspect, the method further includes: obtaining the target travel mode corresponding to each road in the urban traffic road network; establishing a road reachability model and a road selection degree model based on the target travel mode; based on the road reachability model, processing the urban traffic road network to be optimized to obtain the topological depth of the target road relative to other roads; based on the road selection degree model, processing the urban traffic road network to be optimized to obtain the selection degree of the target road in the urban traffic road network to be optimized; and optimizing the target microcirculation network of the urban traffic based on the topological depth and the selection degree.

[0010] In combination with the first aspect, in another possible implementation manner of the first aspect, the method further includes: determining the road section corresponding to the urban traffic road network; establishing a road section model based on the road section; based on the road section model, dividing the urban traffic road network to be optimized to obtain a target road network structure; and optimizing the target microcirculation network of the urban traffic based on the target road network structure.

[0011] In combination with the first aspect, in another possible implementation manner of the first aspect, the method further includes: processing a target space based on the target microcirculation network of the urban traffic to obtain a target parking lot; and establishing a parking system in the target parking lot based on a preset structure system.

[0012] In a second aspect, an embodiment of the present invention provides an optimization device for the traffic microcirculation network in urban renewal. The optimization device for the traffic microcirculation network in urban renewal includes: a determination module, configured to determine at least one first element based on the structural characteristics of at least one urban traffic road network, where the first element reflects the first roads in the urban traffic road network that are not interrupted; a calculation module, configured to obtain the calculation result of each of the first roads through topological depth calculation based on the at least one first element and a preset condition, where the calculation result reflects the number of branch roads connected to each of the first roads; a construction module, configured to construct a connectivity algorithm analysis model based on the at least one first element and the calculation result; and an optimization module, configured to optimize the urban traffic road network to be optimized based on the connectivity algorithm analysis model to obtain an urban traffic target microcirculation network.

[0013] In a third aspect, an embodiment of the present invention provides a computer-readable storage medium storing computer instructions for causing a computer to execute the method for optimizing the traffic microcirculation network in urban renewal as described in the first aspect and any one of the first aspects of the embodiments of the present invention.

[0014] In a fourth aspect, an embodiment of the present invention provides an electronic device including: a memory and a processor, which are communicatively connected to each other. The memory stores computer instructions, and the processor executes the computer instructions to execute the method for optimizing the traffic microcirculation network in urban renewal as described in the first aspect and any one of the first aspects of the embodiments of the present invention.

[0015] The technical solution provided by the present invention has the following effects:

[0016] The method for optimizing the traffic microcirculation network in urban renewal provided by the embodiment of the present invention optimizes the urban traffic road network to be optimized through a connectivity algorithm analysis model, uses branch roads to drive and improve the connectivity of main roads, and fully stimulates the internal vitality of the road network. Therefore, by implementing the present invention, the vitality and attractiveness of the road network are improved, and the problems of traffic microcirculation blockage and serious internal closure of the road network in the city are solved. Description of the Drawings

[0017] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is a map of the city wall of Changyuan County Annals in Jiaqing period provided by the embodiment of the present invention;

[0019] Figure 2 is a map of the courtyard form of northern Henan folk houses provided according to an embodiment of the present invention;

[0020] Figure 3 is a structural planning diagram of Changyuan Old City provided according to an embodiment of the present invention;

[0021] Figure 4 is a flowchart of a method for optimizing the traffic microcirculation network in urban renewal provided according to an embodiment of the present invention;

[0022] Figure 5 is an analysis diagram of the current situation of the road connectivity in Changyuan Old City provided according to an embodiment of the present invention;

[0023] Figure 6 is an analysis diagram of the connectivity of West Street after the preliminary transformation of the microcirculation provided according to an embodiment of the present invention;

[0024] Figure 7 is an analysis diagram of the connectivity of West Street after the completion of the microcirculation transformation provided according to an embodiment of the present invention;

[0025] Figure 8A is a schematic diagram of the scatter plot of the integration degree of West Street before transformation when the topological step is 3 provided according to an embodiment of the present invention;

[0026] Figure 8B is a schematic diagram of the scatter plot of the integration degree of West Street after transformation when the topological step is 3 provided according to an embodiment of the present invention;

[0027] Figure 9A is a schematic diagram of the scatter plot of the integration degree of West Street before transformation when the topological step is 5 provided according to an embodiment of the present invention;

[0028] Figure 9B is a schematic diagram of the scatter plot of the integration degree of West Street after transformation when the topological step is 5 provided according to an embodiment of the present invention;

[0029] Figure 10A is a schematic diagram of the scatter plot of the integration degree of West Street before transformation when the topological step is 7 provided according to an embodiment of the present invention;

[0030] Figure 10B is a schematic diagram of the scatter plot of the integration degree of West Street after transformation when the topological step is 7 provided according to an embodiment of the present invention;

[0031] Figure 11A is a schematic diagram of the scatter plot of the integration degree of West Street before transformation when the topological step is 9 provided according to an embodiment of the present invention;

[0032] Figure 11B is a schematic diagram of the scatter plot of the integration degree of West Street after transformation when the topological step is 9 provided according to an embodiment of the present invention;

[0033] Figure 12A It is a schematic diagram of the scatter plot of the integration degree of West Street before transformation when the topological step number is 11 according to an embodiment of the present invention;

[0034] Figure 12B It is a schematic diagram of the scatter plot of the integration degree of West Street after transformation when the topological step number is 11 according to an embodiment of the present invention;

[0035] Figure 13 It is an analysis diagram of the road accessibility of Changyuan Old City according to an embodiment of the present invention;

[0036] Figure 14 It is an analysis diagram of the road selection degree of Changyuan Old City according to an embodiment of the present invention;

[0037] Figure 15 It is an analysis diagram of the road integration degree after the microcirculation transformation according to an embodiment of the present invention;

[0038] Figure 16 It is an analysis diagram of the road selection degree after the microcirculation transformation according to an embodiment of the present invention;

[0039] Figure 17 It is an analysis diagram of the road accessibility of West Street in Changyuan Old City after transformation according to an embodiment of the present invention;

[0040] Figure 18 It is a design diagram of the West Street section according to an embodiment of the present invention;

[0041] Figure 19 It is a diagram of the old city parking system according to an embodiment of the present invention;

[0042] Figure 20 It is a diagram of the electric tricycle parking system according to an embodiment of the present invention;

[0043] Figure 21 It is a structural block diagram of an optimization device for the traffic microcirculation network in urban renewal according to an embodiment of the present invention;

[0044] Figure 22 It is a schematic structural diagram of a computer-readable storage medium according to an embodiment of the present invention;

[0045] Figure 23 It is a schematic structural diagram of an electronic device according to an embodiment of the present invention. Detailed implementation manners

[0046] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0047] The road network in the historical blocks of small and medium-sized cities retains the urban texture characteristics of a specific historical period and is the basic framework for the healthy development of the old city. However, the rapid development and ineffective supervision of modern cities have led to blockages at the end, delayed development, and reduced vitality.

[0048] Taking the West Street of Changyuan Old City as an example, under the unique climate, hydrology, mountains, and geology conditions, Changyuan has accumulated rich historical and cultural values and formed a relatively recognizable settlement pattern in northern Henan (as shown in Figure 1 ), and courtyard structure (as shown in Figure 2 ). However, due to the unclear overall development orientation and insufficient exploration of the historical and cultural elements in the old city, it has gradually lost its distinct characteristics in the planning structure and transportation system (as shown in Figure 3 ). At the same time, there was a lack of overall control during the previous construction process, serious blockages in the microcirculation, poor living environment quality, unreasonable industrial structure, and low development potential.

[0049] An embodiment of the present invention provides a method for optimizing the traffic microcirculation network in urban renewal, as shown in Figure 4 . The method includes the following steps:

[0050] Step 101: Determine at least one first element based on the structural characteristics of at least one urban traffic road network.

[0051] Among them, the first element reflects the first road that is not interrupted in the urban traffic road network and can be determined according to the structural characteristics of the urban traffic road network.

[0052] Step 102: Based on the at least one first element and preset conditions, through topological depth calculation, obtain the calculation result of each first road.

[0053] Among them, the preset conditions indicate the branch road attributes that need to be specified in the statistical scope during the calculation process, that is, not privately occupied, having certain public functions, with a length or end depth reaching more than 30m, and a width reaching more than 6m; the calculation result reflects the number of branch roads connected to the first road.

[0054] Specifically, consider an uninterrupted street as an independent element to participate in the topological depth calculation to obtain the number of branch roads connected to this road.

[0055] Step 103: Establish a connectivity algorithm analysis model based on the at least one first element and the calculation result.

[0056] Among them, taking the at least one first element and the corresponding calculation result as a training set for training, a connectivity algorithm analysis model can be obtained.

[0057] Step 104: Optimize the urban traffic road network to be optimized based on the connectivity algorithm analysis model to obtain an urban traffic target microcirculation network.

[0058] Among them, the urban traffic target microcirculation network represents a regional road network system composed of some secondary arterial roads, branch roads, and roads below the branch roads.

[0059] Specifically, through the connectivity algorithm analysis model, the connectivity between the main roads and the branch roads in the urban traffic road network to be optimized can be obtained, and further optimize the urban traffic road network to be optimized to obtain the corresponding urban traffic target microcirculation network.

[0060] The method for optimizing the traffic microcirculation network in urban renewal provided by the embodiment of the present invention optimizes the urban traffic road network to be optimized through a connectivity algorithm analysis model, uses branch roads to drive and improve the connectivity of the main roads, and fully stimulates the internal vitality of the road network. Therefore, by implementing the present invention, the vitality and attractiveness of the road network are improved, and the problems of urban traffic microcirculation blockage and serious internal closure of the road network are solved.

[0061] As an optional implementation manner of the embodiment of the present invention, step 104 includes: based on the urban traffic road network to be optimized, passing through the connectivity algorithm analysis model, obtaining the calculation result of each first road in the urban traffic road network to be optimized; dividing the calculation result of each first road to obtain at least one division interval; performing visualization processing on each division interval to obtain a visualization result; analyzing the road connectivity in the urban traffic road network to be optimized based on the visualization result to obtain a road connectivity result; determining the urban traffic target microcirculation network based on the road connectivity result.

[0062] Specifically, the calculation results of each road in the urban traffic road network to be optimized are equally divided into ten numerical intervals from the maximum value to the minimum value, and visualized with dark thick lines for high values and light thin lines for low values. Through visual analysis, the connectivity of the roads in the urban traffic road network to be optimized can be obtained, and the urban traffic target microcirculation network can be determined through this connectivity.

[0063] In one example, the west street of the old city of Changyuan was originally accessible in all directions with numerous branch roads. However, in the past two decades, most of them have been occupied by residents and businesses, resulting in blocked microcirculation, complete closure of the two sides of the block, and reduced block attractiveness. Through the simulation of road connectivity (Connectivity), that is, by counting the number of other roads connected by each road and visually expressing it according to the cold and warm colors, it can be found that (as Figure 5 shown), the connectivity of the west street is at a relatively low level in the surrounding road network system, resulting in relatively low road quality.

[0064] To solve the problem of excessive internal closure of the blocks around the west street, it is designed to clean up the surrounding alley entrances, remove obstacles, and vacate a series of micro-channels connecting the blocks around the streets. Through the establishment of an analysis model of the connectivity algorithm, it can be found that after infiltrating the blocks on both sides of the phased permeable roads, the number of their branch roads has been significantly improved (as Figure 6 and Figure 7 shown), driving the continuous improvement of the connectivity of the main roads, and continuously enriching the available travel modes of the main roads, fully stimulating the internal vitality of the blocks.

[0065] As an optional implementation manner of an embodiment of the present invention, the method further includes: obtaining at least one second element; based on each of the second elements, through a calculation method, obtaining the road global integration degree corresponding to the urban traffic road network; based on each of the second elements and the road global integration degree, establishing a road network structure abstraction model; based on the road network structure abstraction model, optimizing the urban traffic target microcirculation network.

[0066] Among them, the second element reflects the second road interrupted by the intersection in the urban traffic road network; the road network structure abstraction model can further integrate the scatter plot of degrees in the urban traffic target microcirculation network (Integration[HH]Rn-R3)

[0067] Specifically, the model elements corresponding to the road network structure abstraction model are based on road interfaces, that is, the continuous road is interrupted into several independent elements through intersections, and each element is only connected to the rest of the elements at both ends.

[0068] Further, based on each of the second elements, through a calculation method, obtaining the road global integration degree corresponding to the urban traffic road network includes: based on each of the second elements, through a calculation method, obtaining the topological times required for each of the second elements to reach all other elements in the urban traffic road network, and each of the second elements is connected to the rest of the elements at both ends; determining the road global integration degree based on the topological times.

[0069] Specifically, by calculating the topological times required for each element to reach all other elements in the global system (urban traffic road network), the global integration degree of the road (Integration[HH]) can be obtained.

[0070] Furthermore, different values when the topological steps are 3 / 5 / 7 / 9 / 11 are analyzed in sequence and compared with the global integration degree in the X-Y coordinate system.

[0071] Among them, the length of the topological sequence is determined according to the scale of the specific analysis object faced. For example, the number of steps required for the core street in the embodiment of the present invention, Changyuan West Street, to reach the old city boundary is approximately 13 steps. The analysis results beyond 11 steps will cause the analysis results of each element to tend to be the same and lose meaning.

[0072] When the topological steps are 3, the schematic diagrams of the scatter plots of the integration degree of West Street before and after transformation are respectively as Figure 8A and 8B shown; when the topological steps are 5, the schematic diagrams of the scatter plots of the integration degree of West Street before and after transformation are respectively as Figure 9A and 9B shown; when the topological steps are 7, the schematic diagrams of the scatter plots of the integration degree of West Street before and after transformation are respectively as Figure 10A and 10B shown; when the topological steps are 9, the schematic diagrams of the scatter plots of the integration degree of West Street before and after transformation are respectively as Figure 11A and 11B shown; when the topological steps are 11, the schematic diagrams of the scatter plots of the integration degree of West Street before and after transformation are respectively as Figure 12A and 12B shown.

[0073] Among them, the analysis step Rn represents the establishment of connections within n depth ranges; the black cross square represents Changyuan West Street; the trend line is calculated according to the principle that the sum of the distances from all points in the scatter plot to the straight line is the shortest, and intuitively simulates the trend of the scatter plot; the mimic formula y = ax + b is the calculation formula of the straight line; R 2 is the goodness of fit, indicating the appropriateness of approximately simulating the trend of the scatter plot with a straight line. In statistics, it is generally considered that R 2 has a good goodness of fit at 0.5, and R 2 is very consistent above 0.7.

[0074] Through Figures 8A to 12BIt can be seen that: First, after the overall transformation, the integration degree of the main streets in the third section of Changyuan West Street has been greatly improved in the global system; Second, when the analysis step is 3, the fitting degree is greater than 0.7, and when the analysis step is 11, it is even closer to 1, indicating that the similarity of the road integration degree of Changyuan West Street is very high under different topological step conditions, representing that the travel distance has little impact on the analysis results, and there is consistency in micro, meso, and macro integration degrees, which is determined by the relatively small scale of the old city of Changyuan.

[0075] As an optional implementation manner of an embodiment of the present invention, the method further includes: obtaining the target travel mode corresponding to each road in the urban traffic road network; establishing a road reachability model and a road selection degree model based on the target travel mode; processing the to-be-optimized urban traffic road network based on the road reachability model to obtain the topological depth of the target road relative to other roads; processing the to-be-optimized urban traffic road network based on the road selection degree model to obtain the selection degree of the target road in the to-be-optimized urban traffic road network; and optimizing the target microcirculation network of the urban traffic based on the topological depth and the selection degree.

[0076] Among them, due to different road structures, different roads correspond to different travel modes.

[0077] Specifically, based on travel mode analysis, a road reachability model and a road selection degree model can be established.

[0078] Furthermore, the analysis target of the road reachability model is the topological depth (Depth) of a specific element (the target road) relative to the remaining elements (other roads) in the global system, that is, the total number of steps required for the remaining elements to reach the analysis element. Further, according to the principle that the color is warmer for a shallower topological depth and colder for a deeper depth, visual processing is performed, which represents the pros and cons of the specific road's relative global reachability;

[0079] The analysis target of the road selection degree model is the status (selection degree) of a specific element as a path in the global system, that is, the shortest step calculation is performed for pairwise connection of all elements, and the number of times each element appears as a selected path is recorded, and the number of times each road appears on the shortest topological path is obtained on an appropriate global scale. Further, according to the principle that a thicker dark line represents a larger number of times and a thinner light line represents a smaller number of times, visual processing is performed, which represents the possibility of a road being selected in regional urban traffic.

[0080] Among them, due to the large amount of data, the visual analysis results of both models need to be divided into 10 numerical segments and re-colored.

[0081] Therefore, by using the road accessibility model to process the urban traffic road network to be optimized, the topological depth of the target road relative to other roads can be obtained; by using the road selectivity model to process the urban traffic road network to be optimized, the selectivity of the target road in the urban traffic road network to be optimized can be obtained.

[0082] In one example, through road accessibility analysis (such as Figure 13 As shown in Figure 2, it is not difficult to find that Changyuan Old City West Street is at a lower position in the system, even lower than the branch roads on both sides that can connect to other roads. However, from the perspective of the urban road structure in a larger scope, Changyuan West Street is an important carrier for connecting the east and west urban areas, with a large amount of transit traffic. The possibility of the road being selected (such as Figure 14 The actual accessibility of the road is greatly deviated from that of the road, and the width of Changyuan West Street is insufficient to accommodate a large amount of transit traffic, which leads to frequent congestion.

[0083] In order to solve the problem of poor accessibility of West Street, the old city has established a road network system based on the scale of historical blocks by opening up traffic circulation and optimizing the road network. This has greatly improved the traffic accessibility of Changyuan West Street at the meso-micro scale and ensured its accessibility (such as Figure 15 ) and selectivity (as shown Figure 16 That is, the road accessibility and the possibility of road selection are consistent with each other, effectively carrying transit traffic and internal traffic in the old city.

[0084] Furthermore, in order to explore the daily travel mode and scale of people, the analysis radius is defined according to the length. It is assumed that people's activities in the city are based on the "shortest topological path Fewest Turns" between the departure and destination, and have nothing to do with the geographical coordinates and straight-line distance between the two places. This analysis method can relatively truly reflect the degree of utilization of the road network. According to the city scale and the travel habits of local people, Changyuan West Street is divided into travel distances (R) of 250m, 500m, 750m, 1000m, 1500m, 2000m, 2500m, 3000m, and 3500m. It integrates a variety of transportation modes such as short-distance walking, long-distance walking, bicycles, battery cars, private cars, and buses obtained through surveys. After analysis, it can be known (such as Figure 17 After the renovation, West Street has been greatly improved in different travel scales, among which the pedestrian environment has been significantly improved. Xianqian Street and the intersection of Central Street and West Street have become the real pedestrian core of the entire old city. The utilization rate of the road network above 3500m has increased significantly, indicating that the carrying capacity of the old city road network for long-distance vehicles, especially transit vehicles, has been improved.

[0085] As an optional implementation manner of an embodiment of the present invention, the method further includes: determining a road section corresponding to the urban traffic road network; establishing a road section model based on the road section; dividing the to-be-optimized urban traffic road network based on the road section model to obtain a target road network structure; and optimizing the target microcirculation network of the urban traffic based on the target road network structure.

[0086] Specifically, the original road system section division is relatively simple, the distinction between the sidewalk and the vehicle lane is not clear, motor vehicles often compete with pedestrians for the road, and some sidewalks become overtaking roads, posing a great safety hazard. At the same time, due to the economic development characteristics of small and medium-sized cities and the characteristics of the travel mode selection of old city residents, there are a large number of bicycles, electric vehicles, and motorcycles in the streets, making supervision more difficult and further exacerbating the chaos of the roads.

[0087] To solve the serious problem of mixed traffic of people and vehicles on West Street, the street section is reorganized (as shown in Figure 18 ), a "U"-shaped road section model is established based on this street section, and based on this model, the to-be-optimized urban traffic road network is divided into a basic structure of building facade - building appendages - space in front of the building - pedestrian traffic - road facilities and greening - non-motor vehicle road - motor vehicle road, and its horizontal width ratio is locked at 1:1:2:1:2:2:5, and a reasonable interval is set. A pedestrian space and a 1.5m-wide facility belt are divided between the space in front of the building and the motor vehicle lane, and municipal facilities and municipal functions such as greening, urban furniture, non-motor vehicle parking, signs, and street lights are integrally arranged. On the basis of meeting the street functions, the continuity, safety, and smoothness of the pedestrian space are ensured, and at the same time, the vehicle driving space and the motor vehicle space are further clarified.

[0088] Furthermore, the external space of the old city is crowded and there are no dedicated parking spaces. There are a large number of storefronts on both sides of West Street, and both owners and residents have temporary parking needs. Most of them use the sidewalk as a parking lot, which exacerbates the contradiction between people and vehicles and also restricts the update of the old city's business forms and economic development.

[0089] As an optional implementation manner of an embodiment of the present invention, the method further includes: processing a target space based on the target microcirculation network of the urban traffic to obtain a target parking lot; and establishing a parking system in the target parking lot based on a preset structure system.

[0090] Wherein, the preset structure system is "underground - ground - three-dimensional".

[0091] Specifically, the public space is an important part of the street model and can be used as a buffer space for the road. To solve the problem of the lack of parking spaces on West Street, combined with the internal infiltration design of the block, the courtyard and alley spaces on both sides of the street are transformed into parking lots, and a parking system is constructed in the order of underground - ground - three-dimensional (as shown in Figure 19as shown), and form a database. In addition, vehicles such as bicycles and battery-powered vehicles play an important role in the life of the old city and are also one of the root causes of microcirculation blockages. Their size is approximately 2.03m * 0.71m, with a relatively small volume and flexible parking spaces. Combined with the parking in the pocket spaces of the back streets of the road, dedicated parking bays for electric tricycles are set up in areas with wider sidewalks to supplement the parking spaces for electric tricycles (such as Figure 20 as shown).

[0092] During the long development process, due to slow economic development and insufficient supervision, the original small-scale road network in the historical blocks of small and medium-sized cities has been gradually blocked, resulting in the gradual closure of the internal blocks, weakened connection with the surrounding road network, and at the same time, the rationality of road cross-sections and space division has got out of control, and street resources have been occupied by individuals or shops. These are all the basic reasons for the loss of vitality, decline in attractiveness, and breakage of the economic cycle in historical blocks.

[0093] In this case, by implementing the above embodiments of the present invention and carrying out partial traffic microcirculation transformation in stages, the traffic environment can be effectively improved with less investment, the vitality of the streets can be enhanced, a demonstration effect can be formed when benefits are obtained from the early investment, and the enthusiasm of property owners to participate in the transformation and regulate their behaviors can be stimulated, thereby triggering a virtuous cycle of historical block renewal, and finally tracing back to the historical context and reproducing the prosperity of the historical block.

[0094] The above embodiments of the present invention establish a basic model of the streets in the historical block, decompose it into a composition system of road network structure - travel mode - road cross-section - public space, and through the opening of traffic microcirculation, enrich the walkability and experience, improve the walking system from different scales, ensure the fire safety of the block, and thus enhance the vitality and economic value of the block.

[0095] The embodiments of the present invention also provide an optimization device for traffic microcirculation network in urban renewal, as Figure 21 shown. The device includes:

[0096] A determination module 201, configured to determine at least one first element based on the structural characteristics of at least one urban traffic road network, where the first element reflects the first roads in the urban traffic road network that are not interrupted; for detailed content, refer to the relevant description of step 101 in the above method embodiments.

[0097] A calculation module 202, configured to obtain the calculation result of each of the first roads through topological depth calculation based on the at least one first element and a preset condition, where the calculation result reflects the number of branch roads connected to each of the first roads; for detailed content, refer to the relevant description of step 102 in the above method embodiments.

[0098] A building module 203, configured to build a connectivity algorithm analysis model based on the at least one first element and the calculation result; for detailed content, refer to the relevant description of step 103 in the foregoing method embodiment.

[0099] An optimization module 204, configured to optimize the to-be-optimized urban traffic road network based on the connectivity algorithm analysis model to obtain an urban traffic target microcirculation network; for detailed content, refer to the relevant description of step 104 in the foregoing method embodiment.

[0100] The urban traffic microcirculation network optimization device provided by the embodiment of the present invention optimizes the to-be-optimized urban traffic road network through a connectivity algorithm analysis model, uses branch roads to drive and improve the connectivity of main roads, and fully stimulates the internal vitality of the road network. Therefore, by implementing the present invention, the vitality and attractiveness of the road network are improved, and the problems of urban traffic microcirculation blockage and serious internal closure of the road network are solved.

[0101] As an optional implementation manner of the embodiment of the present invention, the optimization module includes: a first calculation sub-module, configured to obtain a calculation result of each first road in the to-be-optimized urban traffic road network through the connectivity algorithm analysis model based on the to-be-optimized urban traffic road network; a division sub-module, configured to divide the calculation result of each first road to obtain at least one division interval; a processing sub-module, configured to perform visualization processing on each division interval to obtain a visualization result; an analysis sub-module, configured to analyze the road connectivity in the to-be-optimized urban traffic road network based on the visualization result to obtain a road connectivity result; a first determination sub-module, configured to determine the urban traffic target microcirculation network based on the road connectivity result.

[0102] As an optional implementation manner of the embodiment of the present invention, the device further includes: a first acquisition module, configured to acquire at least one second element, where the second element reflects a second road interrupted by an intersection in the urban traffic road network; a first calculation module, configured to obtain the road global integration degree corresponding to the urban traffic road network based on each second element through a calculation method; a first building module, configured to build a road network structure abstraction model based on each second element and the road global integration degree; a first optimization module, configured to optimize the urban traffic target microcirculation network based on the road network structure abstraction model.

[0103] As an alternative implementation manner of an embodiment of the present invention, the first calculation module includes: a second calculation sub-module, configured to obtain, through a calculation method based on each of the second elements, the topological times required for each of the second elements to reach all other elements in the urban traffic road network, and each of the second elements is connected to the remaining elements at both ends; a second determination sub-module, configured to determine the global road integration degree based on the topological times.

[0104] As an alternative implementation manner of an embodiment of the present invention, the device further includes: a second acquisition module, configured to acquire a target travel mode corresponding to each road in the urban traffic road network; a second establishment module, configured to establish a road reachability model and a road selection degree model based on the target travel mode; a first processing module, configured to process the to-be-optimized urban traffic road network based on the road reachability model to obtain the topological depth of the target road relative to other roads; a second processing module, configured to process the to-be-optimized urban traffic road network based on the road selection degree model to obtain the selection degree of the target road in the to-be-optimized urban traffic road network; a second optimization module, configured to optimize the urban traffic target microcirculation network based on the topological depth and the selection degree.

[0105] As an alternative implementation manner of an embodiment of the present invention, the device further includes: a first determination module, configured to determine a road section corresponding to the urban traffic road network; a third establishment module, configured to establish a road section model based on the road section; a division module, configured to divide the to-be-optimized urban traffic road network based on the road section model to obtain a target road network structure; a third optimization module, configured to optimize the urban traffic target microcirculation network based on the target road network structure.

[0106] As an alternative implementation manner of an embodiment of the present invention, the device further includes: a third processing module, configured to process a target space based on the urban traffic target microcirculation network to obtain a target parking lot; a fourth establishment module, configured to establish a parking system in the target parking lot based on a preset structure system.

[0107] For the detailed function description of the traffic microcirculation network optimization device in urban renewal provided by the embodiments of the present invention, please refer to the description of the traffic microcirculation network optimization method in urban renewal in the above embodiments.

[0108] The embodiments of the present invention further provide a storage medium, such as Figure 22As shown, a computer program 301 is stored thereon. When the instructions are executed by a processor, the steps of the method for optimizing the traffic microcirculation network in urban renewal in the above embodiments are implemented. Among them, the storage medium can be a magnetic disk, an optical disc, a read-only memory (ROM), a random access memory (RAM), a flash memory, a hard disk drive (HDD), or a solid-state drive (SSD), etc.; the storage medium can also include a combination of the above types of memories.

[0109] Those skilled in the art can understand that to implement all or part of the processes in the above method embodiments, it can be completed by instructing relevant hardware through a computer program. The program can be stored in a computer-readable storage medium. When the program is executed, it can include the processes of the method embodiments as described above. Among them, the storage medium can be a magnetic disk, an optical disc, a read-only memory (ROM), a random access memory (RAM), a flash memory, a hard disk drive (HDD), or a solid-state drive (SSD), etc.; the storage medium can also include a combination of the above types of memories.

[0110] The embodiment of the present invention also provides an electronic device, as Figure 23 shown. The electronic device may include a processor 41 and a memory 42. The processor 41 and the memory 42 can be connected through a bus or other means. Figure 23 Taking the connection through the bus as an example.

[0111] The processor 41 can be a central processing unit (CPU). The 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, etc. chips, or a combination of the above types of chips.

[0112] 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 of the processor by running the non-transitory software programs, instructions, and modules stored in the memory 42, that is, to implement the method for optimizing the traffic microcirculation network in urban renewal in the above method embodiments.

[0113] The memory 42 may include a program storage area and a data storage area. Among them, the program storage area can store an operating device and application programs required for at least one function; the data storage area can store data created by the processor 41 and the like. In addition, the memory 42 may include a high-speed random access memory, and may also include a non-transitory memory, such as at least one magnetic disk storage device, a flash memory device, or other non-transitory solid-state storage devices. In some embodiments, the memory 42 may optionally include a memory remotely set relative to the processor 41, and these remote memories can be connected to the processor 41 through a network. Examples of the above networks include but are not limited to the Internet, an enterprise intranet, a local area network, a mobile communication network, and combinations thereof.

[0114] The one or more modules are stored in the memory 42 and, when executed by the processor 41, execute the method for optimizing the traffic microcirculation network in urban renewal in the Figures 1 - 20 embodiments shown.

[0115] Specific details of the above electronic device can be understood by referring to the Figures 1 to 20 corresponding relevant descriptions and effects in the shown embodiments, and will not be elaborated here.

[0116] Although the embodiments of the present 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 present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A method for optimizing the traffic microcirculation network in urban renewal, characterized in that, The method includes: Based on the structural characteristics of at least one urban traffic road network, determining at least one first element, where the first element reflects the uninterrupted first roads in the urban traffic road network; Based on the at least one first element and preset conditions, through topological depth calculation, obtaining the calculation result of each of the first roads, where the calculation result reflects the number of branch roads connected to each of the first roads; Based on the at least one first element and the calculation result, establishing a connectivity algorithm analysis model; Based on the connectivity algorithm analysis model, optimizing the urban traffic road network to be optimized to obtain an urban traffic target microcirculation network; The method further includes: Obtaining at least one second element, where the second element reflects the second roads in the urban traffic road network that are interrupted by intersections; Based on each of the second elements, through a calculation method, obtaining the global road integration degree corresponding to the urban traffic road network; Based on each of the second elements and the global road integration degree, establishing a road network structure abstraction model; Based on the road network structure abstraction model, optimizing the urban traffic target microcirculation network; The method further includes: Obtaining the target travel mode corresponding to each road in the urban traffic road network; Based on the target travel mode, establishing a road reachability model and a road selection degree model; Based on the road reachability model, processing the urban traffic road network to be optimized to obtain the topological depth of the target road relative to other roads; Based on the road selection degree model, processing the urban traffic road network to be optimized to obtain the selection degree of the target road in the urban traffic road network to be optimized; Based on the topological depth and the selection degree, optimizing the urban traffic target microcirculation network; The method further includes: Determining the road section corresponding to the urban traffic road network; Based on the road section, establishing a road section model; Based on the road section model, dividing the urban traffic road network to be optimized to obtain a target road network structure; Based on the target road network structure, optimizing the urban traffic target microcirculation network.

2. The method according to claim 1, characterized in that, Based on the connectivity algorithm analysis model, optimizing the urban traffic road network to be optimized to obtain an urban traffic target microcirculation network, including: Based on the urban traffic road network to be optimized, through the connectivity algorithm analysis model, obtaining the calculation result of each of the first roads in the urban traffic road network to be optimized; Dividing the calculation result of each of the first roads to obtain at least one division interval; Performing visualization processing on each of the division intervals to obtain a visualization result; Based on the visualization result, analyzing the road connectivity in the urban traffic road network to be optimized to obtain a road connectivity result; Based on the road connectivity result, determining the urban traffic target microcirculation network.

3. The method according to claim 1, wherein Based on each of the second elements, through a calculation method, obtaining the global road integration degree corresponding to the urban traffic road network, including: Based on each of the second elements, through a calculation method, obtaining the topological times required for each of the second elements to reach all other elements in the urban traffic road network, and each of the second elements is connected to the remaining elements at both ends; Determine the global integration degree of the road based on the topological degree.

4. The method according to claim 1, wherein The method further includes: Based on the target microcirculation network of the urban traffic target, process the target space to obtain a target parking lot; Establish a parking system in the target parking lot based on a preset structural system.

5. An optimization device for the traffic microcirculation network in urban renewal, characterized in that, The device includes: A determination module, configured to determine at least one first element based on the structural characteristics of at least one urban traffic road network, where the first element reflects the first road that is not interrupted in the urban traffic road network; A calculation module, configured to obtain a calculation result of each of the first roads through topological depth calculation based on the at least one first element and a preset condition, where the calculation result reflects the number of branch roads connected to each of the first roads; An establishment module, configured to establish a connection degree algorithm analysis model based on the at least one first element and the calculation result; An optimization module, configured to optimize the urban traffic road network to be optimized based on the connection degree algorithm analysis model to obtain a target microcirculation network of urban traffic; The device further includes: A first acquisition module, configured to acquire at least one second element, where the second element reflects the second road that is interrupted by an intersection in the urban traffic road network; A first calculation module, configured to obtain the global integration degree of the road corresponding to the urban traffic road network through a calculation method based on each of the second elements; A first establishment module, configured to establish a road network structure abstraction model based on each of the second elements and the global integration degree of the road; A first optimization module, configured to optimize the target microcirculation network of urban traffic based on the road network structure abstraction model; The device further includes: A second acquisition module, configured to acquire the target travel mode corresponding to each road in the urban traffic road network; A second establishment module, configured to establish a road accessibility model and a road selection degree model based on the target travel mode; A first processing module, configured to process the urban traffic road network to be optimized based on the road accessibility model to obtain the topological depth of the target road relative to other roads; A second processing module, configured to process the urban traffic road network to be optimized based on the road selection degree model to obtain the selection degree of the target road in the urban traffic road network to be optimized; A second optimization module, configured to optimize the target microcirculation network of urban traffic based on the topological depth and the selection degree; The device further includes: A first determination module, configured to determine the road section corresponding to the urban traffic road network; A third establishment module, configured to establish a road section model based on the road section; A division module, configured to divide the urban traffic road network to be optimized based on the road section model to obtain a target road network structure; A third optimization module, configured to optimize the target microcirculation network of urban traffic based on the target road network structure.

6. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions for causing the computer to execute the method for optimizing the traffic microcirculation network in urban renewal according to any one of claims 1 to 4.

7. An electronic device, characterized in that, Including: A memory and a processor, which are communicatively connected to each other. The memory stores computer instructions, and the processor executes the computer instructions to execute the method for optimizing the traffic microcirculation network in urban renewal according to any one of claims 1 to 4.

Images