CN115205465A - Method, equipment and storage medium for defining isochronous three-dimensional influence domain of track station - Google Patents

Abstract

The invention discloses a method, equipment and storage medium for defining an isochronous three-dimensional influence domain of a rail station, and relates to the technical field of TOD urban design of rail transit stations and the definition of the influence range. Simulation; based on the calculation of service scope indicators, expand the isochronous circle at different speeds of various slow-moving traffic connections, improve the awareness of traffic accessibility, weaken the value difference caused by distance and distance, and guide the integration of scattered urban resources ;Based on a comprehensive connection perspective, the system integrates multiple urban elements such as transportation, function, and space, and can perform corresponding weight assignments and additions, and conduct vitality intensity simulation in UNA; based on isochronous layer expansion and comprehensive connection elements Integration, expand the research scope to adjacent stations, and form a multi-station linkage mechanism guided by the isochronous circle layer and slow-moving vitality integration.

Description

Method, device and storage medium for defining isochronous three-dimensional influence domain of orbital site

technical field

The invention belongs to the technical field of TOD urban design and influence scope definition of rail transit stations, and in particular relates to a method, equipment and storage medium for defining isochronous three-dimensional influence domains of rail stations.

Background technique

With the continuous development of science and technology, the influence domain of rail transit stations, that is, a series of urban spaces that are affected and radiated after rail transit lines and stations are implanted in urban space, the scope of which is defined by the practice of research on issues related to station urban design. space basis.

The current definition methods mainly include traditional experience definition, tool simulation definition, data analysis definition, and analysis model definition. Design requirements; tool simulation and definition mostly use ArcGIS and micro-traffic simulation tools to define equivalent paths based on planes. These methods are further refined on the basis of empirical definition; data analysis and definition are mostly based on walking behavior data research, shared bicycles The analysis of data, etc., has the characteristics of refinement, but the problem is that it is difficult to obtain data, and it is time-consuming and labor-intensive; the definition of the analysis model is mainly based on the regression analysis model. The application of transportation disciplines is difficult to promote in urban design work; and the existing technology is based on the definition of two-dimensional equivalent paths, and it is difficult to adapt to the evolution of the station urban space model under the background of three-dimensional and intensive urban space, and the calculation It is difficult to meet the needs of efficient deliberation and auxiliary decision-making in urban design work. Therefore, a method, equipment and storage medium for defining isochronous three-dimensional influence domains of orbital stations are now proposed.

SUMMARY OF THE INVENTION

In view of the deficiencies of the prior art, the purpose of the present invention is to provide a method, equipment and storage medium for defining the isochronous three-dimensional influence domain of a track station, which solves the problem that the prior art is difficult to adapt to the background of three-dimensional and intensive urban space in the prior art. The evolution of the urban spatial model of the site requires high computing power, and it is difficult to adapt to the technical problems of efficient deliberation and auxiliary decision-making in urban design work.

The object of the present invention can be achieved through the following technical solutions: a method for defining an isochronous three-dimensional influence domain of an orbital site, the method comprising the following steps:

Obtain 3D connection traffic route network and 3D space coordinates;

The site energy level, connection point, public function, public space, and surrounding site influence factors involved in the comprehensive connection elements are assigned weights based on the area, and are linked with the three-dimensional connection traffic path network to show the value with characteristics Increase the weight bonus to form a complete analysis network in the urban network analysis;

For the complete analysis network, use the three-dimensional space coordinates to simulate the walking reachability, and then carry out the connection reachability simulation operation, and obtain the walking reachability simulation results and the connection reachability simulation results;

Place the simulation results of walking accessibility and connection accessibility on the actual building plot, complete the definition of the "rigid" isochronous layer, and simulate the "elastic" vitality intensity;

The "rigid" isochronous circle layer and the "elastic" vitality intensity are superimposed, and finally the definition of the isochronous three-dimensional influence domain is formed.

Further, the walking reachable simulation takes the three-dimensional space coordinates of the exit gate as a starting point, and performs isochronous reachable range simulation at the walking speed.

Further, the connection accessibility simulation includes a connection path measurement and a connection reachable range, wherein the connection path measurement is a measure of the walking time and distance it takes to reach the connection point from the station. On the basis, the connection reachable range simulation at the connection speed is carried out with the remaining time.

Further, after the service range of the urban network analysis is given the coordinates of the starting point, the reachable range under a specific search radius is simulated. It is linked with the above-ground and underground three-dimensional slow-moving network, and the indoor pedestrian network of public buildings that is closely connected with the station is integrated to form an indoor and outdoor three-dimensional slow-moving traffic network.

Further, the weight includes a starting point weight and an ending point weight.

Further, the starting point weight is the energy level released by the travel point, including the passenger flow of the site and the number of residents at the starting point, and the ending point weight is an attribute that measures the attraction degree of the target point, including area, capacity, and attraction degree.

Further, the calculation formula for measuring the vitality intensity of the three-dimensional slow traffic network is:

In the formula, Betweenness[i]r,dr is the Betweenness value of the observation point i under the search radius r and the detour ratio dr, Betweenness is the betweenness, and nj,k[i] refers to the shortest distance between the starting point j and the ending point k. The number of times the route passes through observation point i, nj,k refers to the total number of shortest routes from j to k; and the simulation of passenger flow intermediateness relative intermediateness incorporates the influence of the weight attribute of the end point, and simulates how travelers travel between multiple target points. A choice between the two can truly reflect the dynamism of a three-dimensional slow-moving traffic network.

Further, the "simulated elasticity" vitality intensity is a slow traffic simulation in which the integrated connection elements act on the path network under the redundant path behavior selection mode with a certain detour coefficient, reflecting the differentiated distribution of the vitality intensity.

Beneficial effects of the present invention:

Compared with the definition based on the two-dimensional ground path, the “three-dimensional” fine definition based on urban network analysis tools, on the one hand, is the three-dimensional integration of indoor and outdoor, above-ground and underground slow-moving systems, which guides the three-dimensional integration of urban elements and management and control mechanisms. On the other hand, the starting point of the definition is refined from the entrance and exit of the site to the gate of the paid area, which responds to the integration trend of the non-paid area and the urban functional space. , The computing power requirements are low; based on the calculation of the service scope index, the isochronous circle layer expansion is carried out at different speeds of various slow traffic connections, which improves the awareness of traffic accessibility and reduces the value difference caused by distance and distance. Guide the integration of scattered urban resources; based on a comprehensive connection perspective, systematically integrate multiple urban elements such as transportation, functions, and space, and perform corresponding weight assignments and additions; based on the expansion of the isochronous circle and the integration of comprehensive connection elements, the The research scope is extended to adjacent stations, forming a multi-station linkage mechanism guided by the isochronous circle layer and the integration of slow-moving vitality.

Description of drawings

In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. In other words, other drawings can also be obtained from these drawings without any creative effort.

Fig. 1 is the flow chart of the present invention;

FIG. 2 is a schematic diagram of the 5-10-15min walking reachable range simulation of two stations and the definition of the walking isochronous circle layer according to the embodiment of the present invention;

FIG. 3 is a schematic diagram of the simulation of the path to the riding connection point and the simulation of the human flow of the time-measured connection path according to an embodiment of the present invention;

4 is a schematic diagram of isochronous circle definition according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of the MM21 area comprehensive connection vitality intensity simulation and the section circle and vitality intensity along the Sakuragicho Station-Minatomirai Station according to the embodiment of the present invention;

6 is a schematic diagram of an isochronous three-dimensional domain of influence definition mode in the MM21 area according to an embodiment of the present invention;

7 is a schematic diagram of a comprehensive connection system in the middle section of Sakuragicho Station-Minatomirai Station according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of coupling of vitality intensity and redundant path selection along the line between Sakuragicho Station and Minatomirai Station according to an embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

As shown in Figure 1, a method for defining an isochronous three-dimensional influence domain of an orbit site, the method includes the following steps:

Obtain 3D connection traffic route network and 3D space coordinates;

The site energy level, connection point, public function, public space, and surrounding site influence factors involved in the comprehensive connection elements are assigned weights based on the area, and are linked with the three-dimensional connection traffic path network to show the value with characteristics Increase the weight bonus to form a complete analysis network in the urban network analysis;

For the complete analysis network, use the three-dimensional space coordinates to simulate the walking reachability, and then carry out the connection reachability simulation operation, and obtain the walking reachability simulation results and the connection reachability simulation results;

Place the simulation results of walking accessibility and connection accessibility on the actual building plot, complete the definition of the "rigid" isochronous layer, and simulate the "elastic" vitality intensity;

The "rigid" isochronous circle layer and the "elastic" vitality intensity are superimposed, and finally the definition of the isochronous three-dimensional influence domain is formed.

It should be further explained that, in the specific implementation process, the walking reachable simulation takes the three-dimensional space coordinates of the exit gate as a starting point, and performs the isochronous reachable range simulation at the walking speed.

It needs to be further explained that, in the specific implementation process, the connection reachability simulation includes two parts: the connection path measurement and the connection reachability range, where the connection path measurement is the cost from the outbound to the connection point. On an isochronous basis, the remaining time is used to simulate the reachability at the connection speed.

It should be further explained that, in the specific implementation process, the service scope of the urban network analysis is given after the starting point coordinates are given, and the reachable scope under a specific search radius is simulated, which is defined in the isochronous circle layer of the three-dimensional influence domain. In the middle, starting from the exit gate, it is linked with the above-ground and underground three-dimensional slow-moving network, and the indoor pedestrian network of public buildings that is closely connected with the station is integrated to form an indoor and outdoor three-dimensional slow-moving traffic network.

It should be further explained that, in a specific implementation process, the weight includes a starting point weight and an ending point weight.

It should be further explained that, in the specific implementation process, the starting point weight is the energy level released by the travel point, including the passenger flow of the site and the number of residents at the starting point, and the ending point weight is an attribute to measure the attraction degree of the target point, including the area. , capacity, and attractiveness.

It should be further explained that, in the specific implementation process, the calculation formula for measuring the vitality intensity of the three-dimensional slow traffic network is:

Betweenness[i]r,dr is the Betweenness value of the observation point i under the search radius (isochronous reachable range) r and the detour ratio dr, and nj,k[i] refers to the shortest distance between the starting point j and the ending point k The number of times the path passes through observation point i, and nj,k refers to the total number of shortest paths from j to k. The calculation of the Betweenness value of the observation point is to consider the set of all "starting points-end points" within r of the network distance between each other. When entering the detour ratio dr, there will be a path selection greater than r intervening. When the measure is weighted, the intermediate index will add the influence of the starting point weight W[j] to reflect the real release energy level of the site's passenger flow.

The simulation of Patronage Betweenness and Betweenness incorporates the influence of DestinationWeights attribute to simulate how travelers choose between multiple target points, which can more realistically reflect the vitality of the path. .

It should be further explained that, in the specific implementation process, the "simulated elasticity" vitality intensity is the slow traffic simulation in which the integrated connection elements act on the path network under the redundant path behavior selection mode with a certain bypass coefficient. Reflects the differential distribution of vitality intensity.

Example 1: The section between Sakuragicho Station and Minatomirai Station has the slow-moving system with the highest degree of three-dimensionality in the MM21 area, and has a variety of transportation connection methods. It integrates the public space and functional systems at the core of the area, and has the highest degree of linkage two sites. Select Sakuragicho Station-Minatomirai Station as the analysis object and focus, first define the "rigid" isochronous circle of the isochronous three-dimensional influence domain, and in the simulation of "elastic" vitality intensity, through the station weight assignment, comprehensively consider Yokohama Influence of surrounding stations such as station, Shin-Takashima station, and Bach-chan station.

1) Analyze network construction and weight distribution

The research focuses on the three-dimensional urban space system between Minatomirai Station and Sakuragicho Station, and further illustrates the establishment of the isochronous three-dimensional influence domain model. Firstly, the analysis network base is established, including three-dimensional slow-moving path networks such as walking, automatic walking, and cycling, and the indoor walking system of major public buildings closely related to the site is incorporated to form a complete indoor and outdoor three-dimensional slow-moving network. In terms of comprehensive connection factor links and weight assignments, the data of the same year showed that the average daily passengers at Minatomirai Station and Sakuragicho Station were 82,391 and 37,311, respectively, which were used as the basis for assigning weights to the two stations (starting points), passing through public functions. Space and other elements are weighted based on area, and for characteristic target points such as industrial heritage renewal space and coastal landscape space, a certain weight coefficient is added, so as to link the starting point and target point with the three-dimensional slow-moving network, composition, etc. The network basis for the definition of the three-dimensional influence domain and the analysis of related indicators.

2) "Rigid" isochronous layer definition

Walking isochronous circle definition

First, the walking reachable range simulation is carried out. Among them, Minatomirai Station is an underground station, the station hall is located on the B3 floor, and the exit gates are located on the B3 and B2 floors; Sakuragicho Station is an elevated station, and the station hall and exit gates are located at Ground floor. Link the exit gates of the two stations with the three-dimensional route network, and carry out a "5-10-15min" walk-up simulation, and further define the walking isochronous circles according to the building and land ownership and other elements, as shown in Figure 2 shown;

Based on the definition of the walking isochronous circle, it can be seen that a 5-minute walk covers the core areas of the station such as Queen's Square; Minatomirai Station can reach Yokohama International Convention and Exhibition Center within a 10-minute walk, and the flow of people out of Sakuragicho Station is efficiently conveyed by the aerial automatic walkway. The 10-minute reachable range is superimposed at the landmark building; the 15-minute walk has basically achieved interconnection.

Among them, the landmark building is the building with the highest development intensity at the overlapping position of the isochronous circle between the two stations. It can be seen that the cognition of the core area of the station that we usually think has the highest intensity is in the establishment of the isochronous three-dimensional influence domain of multi-station linkage. It can actually be extended to intermediate nodes.

Connection isochronous circle layer definition

First, based on the three-dimensional space coordinates of the connection point, the distance and time of the connection path are measured. On this basis, the isochronous reachable range simulation under the remaining time is carried out at the connection speed, and then the connection is completed in the actual building plot. Isochronous circle definition.

Combined with the main pedestrian axis, the MM21 area has set up parking points that can provide a large number of private bicycles and electric bicycles, which are the main slow-moving connection points, and also equipped with fixed connection points that can accommodate a small number of municipal harbour bicycles. Through the connection path simulation and distance time measurement, it can be seen that most of the bicycle and electric bicycle connection points of Minatomirai Station are within 5-10 minutes walking distance from the station. As shown in Figure 3, this connection path is in the isochronous three-dimensional influence domain. A considerable period of time will be spent in the definition, rather than a direct simulation of the isochronous reach at the connection speed from the station as a starting point.

On the basis of the measurement of the connection path, weight is given based on the capacity of the connection point, and the pedestrian flow simulation of the connection path is carried out. It can be seen that the three connection points for bicycles and electric bicycles with large capacity are the main connection points in the region. As shown in Figure 3; therefore, these three places are used as the starting point to simulate the isochronous circle layer of the connection. In addition, the three main connection points consider the convenience of traffic connection to the station, while the connection point of Minatomirai Station takes into account the connection to the main pedestrian axis of Grandmall and the coastal landscape, and the main bicycle connection point of Sakuragicho Station. Taking into account the connection to the surrounding residential areas, it is located at a 6-minute walk from the station.

Based on the ground cycling connection path network and main connection points, the connection isochronous circle is defined and superimposed with the walking circle to form a composite multi-dimensional isochronous circle. It basically covers the MM21 area, and the main area where the circle is superimposed is still located in the landmark building with the highest intensity, which embodies the value extension and guiding significance of the isochronous circle, as shown in Figure 4.

3) Simulation of "elastic" vitality intensity

As shown in Figure 5, on the basis of the definition of the "rigid" isochronous circle, combined with the starting point (station passenger flow) and the weight assignment of comprehensive connection elements, the slow-moving vitality intensity (passenger flow intermediateness) of the three-dimensional route network is visualized. It can be seen that the hub of Minatomirai Station gathers the core of the vitality of the section, and extends in the direction of Shin-Takashima Station and Yokohama Station. It is mainly linked with the middle section of Sakuragicho Station. The atrium of the landmark building has played a role in relieving the flow of people in the overlapping area of the main circle.

4) Isochronous three-dimensional domain of influence definition

Based on the definition of isochronous circles and the simulation of vitality intensity, the three-dimensional public space information is superimposed to form the definition of two-station isochronous three-dimensional influence domains, as shown in Figure 6. The three-dimensional public space in the MM21 area is mainly on the ground. Through the integration of the slow-moving system in the air, the urban area between Minatomirai Station and Sakuragicho Station gathers the highest density three-dimensional urban space system. In the dense section, the multi-station linkage is further strengthened by the connection of various slow-moving traffic.

Further focusing on the middle section of the two stations, it brings together the main three-dimensional public space and the vitality of people flow in the MM21 area, and is the core section that can be extended and integrated in the isochronous circle and urban vitality. The two stations rely on a three-dimensional slow-moving network in this area, and integrate indoor and outdoor three-dimensional traffic and public space systems through a large number of automated pedestrian facilities, commercial atriums, assembly plazas, and public art. Commercial, office, cultural, and public services are arranged along the main path. Diversified public functions are connected by a comprehensive "transportation-function-space-circle-layer-feature" to create a comfortable long-distance walking experience, as shown in Figure 7.

As shown in Figure 8, the dynamic intensity simulation focus of this intermediate section shows that the station core space of Minatomirai Station and the sky moving walkway of Sakuragicho Station have played a significant role in drainage, and the three-dimensional pedestrian space around the atrium under the Landmark Building It plays a role in dispersing the flow of people, and the outdoor coastal public space is also highly attractive. The shortest path between the two stations is 870m through the path search, and the redundant path simulation of the linkage between the two stations is carried out with a detour coefficient of 1.1. It can be seen that under the path behavior selection with redundancy, the redundant path selection is also consistent with the main vitality interval, which reflects the coupling between the elastic slow-travel behavior selection and the vitality of the comprehensive connection system.

In the description of this specification, description with reference to the terms "one embodiment," "example," "specific example," etc. means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one aspect of the present invention. in one embodiment or example. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments, and the descriptions in the above-mentioned embodiments and the description are only to illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have Various changes and modifications fall within the scope of the claimed invention.

Claims (10)

1. a method for defining an isochronous three-dimensional domain of influence of an orbit site, characterized in that the method comprises the following steps: Obtain 3D connection traffic route network and 3D space coordinates; The site energy level, connection point, public function, public space, and surrounding site influence factors involved in the comprehensive connection elements are assigned weights based on the area, and are linked with the three-dimensional connection traffic path network to show the value with characteristics Increase the weight bonus to form a complete analysis network in the urban network analysis; For the complete analysis network, use the three-dimensional space coordinates to simulate the walking reachability, and then carry out the connection reachability simulation operation, and obtain the walking reachability simulation results and the connection reachability simulation results; Place the simulation results of walking accessibility and connection accessibility on the actual building plot, complete the definition of rigid isochronous layers, and simulate the elastic vitality intensity; The rigid isochronous circle layer and the elastic vitality intensity are superimposed, and finally the definition of the isochronous three-dimensional influence domain is formed. 2. The method for defining an isochronous three-dimensional influence domain of a track site according to claim 1, wherein the walkable reach simulation takes the three-dimensional space coordinates of the exit gate as a starting point, and the isochronous reachable simulation is performed at a walking speed. Reach range simulation. 3. The method for defining an isochronous three-dimensional domain of influence of an orbital site according to claim 1, wherein the connection reachability simulation comprises two parts: a connection path measurement and a connection reachable range simulation, wherein the connection The path measure is the measure of the walking time and distance it takes to reach the connection point from the station. On an isochronous basis, the remaining time is used to simulate the reachable range at the connection speed. 4. The method for defining an isochronous three-dimensional influence domain of a track site according to claim 1, wherein the service range of the urban network analysis is performed on the reachable range under a specific search radius after the starting point coordinates are given. In the simulation, in the isochronous circle definition of the 3D influence domain, starting from the outbound gate, it is linked with the above-ground and underground 3D slow-moving network, and the indoor pedestrian network of public buildings that is closely connected with the station is integrated to form an indoor and outdoor 3D network. Slow traffic network. 5 . The method for defining an isochronous three-dimensional domain of influence of a track station according to claim 1 , wherein the weight includes a starting point weight and an ending point weight. 6 . 6 . The method for defining isochronous three-dimensional influence domains of a rail station according to claim 5 , wherein the starting point weight is the energy level released by the travel point, including the station passenger flow, the number of residents at the starting point, and the ending point weight. 7 . It is an attribute to measure the attraction degree of the behavior target point, including area, capacity, and attraction degree. 7. The isochronous three-dimensional influence domain definition method of a track site according to claim 4, wherein the calculation formula for measuring the vitality intensity of the three-dimensional slow traffic network is:

In the formula, Betweenness[i]r,dr is the Betweenness value of the observation point i under the search radius r and the detour ratio dr, Betweenness is the betweenness, and nj,k[i] refers to the shortest distance between the starting point j and the ending point k. The number of times the route passes through observation point i, nj,k refers to the total number of shortest routes from j to k; and the simulation of passenger flow intermediateness relative intermediateness incorporates the influence of the weight attribute of the end point, and simulates how travelers travel between multiple target points. A choice between the two can truly reflect the dynamism of a three-dimensional slow-moving traffic network. 8. The method for defining an isochronous three-dimensional influence domain of a track site according to claim 1, wherein the simulated elasticity "vigor strength" is an integrated connection under a redundant path behavior selection mode with a certain detour coefficient. The bridging factor acts on the slow traffic simulation of the route network, reflecting the differentiated distribution of vitality intensity. 9. A device, characterized in that, comprising: one or more processors; memory for storing one or more programs; Three-dimensional domain of influence when the one or more programs are executed by the one or more processors such that the one or more processors implement a track site etc. as claimed in any one of claims 1-8 Define method. 10. A storage medium comprising computer-executable instructions, wherein the computer-executable instructions, when executed by a computer processor, are used to execute a track site or the like as described in any one of claims 1-8 Time 3D domain of influence definition method.

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