CN115205465A - Method, equipment and storage medium for defining isochronous three-dimensional influence domain of track station - Google Patents
Method, equipment and storage medium for defining isochronous three-dimensional influence domain of track station Download PDFInfo
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Abstract
The invention discloses a method, equipment and a storage medium for defining an isochronous three-dimensional influence domain of a rail transit station, which relate to the technical field of TOD (time of arrival) urban design and influence range definition of the rail transit station, and are used for carrying out isochronous circle layer definition and vitality intensity simulation based on an urban network analysis UNA (unscented application) tool; based on service range index calculation, performing isochronous cycle layer expansion at different speeds of various slow traffic connections, improving traffic accessibility cognition, and weakening value difference degree brought by far and near distances, thereby guiding scattered urban resource integration; based on a comprehensive connection visual angle, system integration is carried out on multiple city factors such as traffic, functions, space and the like, corresponding weight assignment and addition can be carried out, and vitality intensity simulation is carried out in UNA; based on the expansion of the isochronous ring layer and the integration of comprehensive connection elements, the research range is expanded to adjacent stations, and a multi-station linkage mechanism guided by the isochronous ring layer and the slow-moving vitality integration is formed.
Description
Technical Field
The invention belongs to the technical field of TOD (time of arrival) urban design and influence range definition of track traffic stations, and particularly relates to a method, equipment and a storage medium for defining an isochronous three-dimensional influence domain of a track station.
Background
With the continuous development of the technology, a series of urban spaces affected by the urban spaces generated in an urban space affected by rail transit station affected area, namely rail transit lines and stations, are defined as the space basis of research practice of problems related to urban design of the stations.
The current defining method mainly comprises the traditional experience defining method, the tool simulation defining method, the data analysis defining method, the analysis model defining method and the like; the traditional experience definition is based on the concentric circle type definition of 500-800m around the site, and the definition method is relatively extensive and is difficult to adapt to the design requirement of a refined city; the tool simulation definition mostly adopts ArcGIS and microscopic traffic simulation tools to define the equivalent path based on a plane, and the method is further refined on the basis of experience definition; the data analysis defines analysis based on walking behavior data research, shared bicycle data and the like, has the characteristic of refinement, but has the problems of difficult data acquisition, time consumption and labor consumption; the definition of the analysis model is mainly established based on a regression analysis model, and is mostly applied to traffic disciplines due to the complexity of a calculation model and mathematical analysis, so that the analysis model is difficult to popularize in urban design work; in addition, in the prior art, based on the definition of a two-dimensional equivalent path, for the background of urban space three-dimensional and intensification, the method is difficult to adapt to the evolution of a station urban space mode, has a high calculation requirement, and is difficult to adapt to the requirements of efficient promotion and decision assistance in urban design work, so that a method, equipment and storage medium for defining an isochronous three-dimensional influence domain of a track station are provided.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a method, equipment and a storage medium for defining an isochronous three-dimensional influence domain of a track station, and solves the technical problems that in the prior art, under the background of urban space three-dimensionality and intensification, the evolution of a station urban space mode is difficult to adapt, the calculation power requirement is high, and the requirements of efficient knocking and decision assistance in urban design work are difficult to adapt.
The purpose of the invention can be realized by the following technical scheme: a method for defining an isochronous three-dimensional influence domain of a track station comprises the following steps:
acquiring a three-dimensional connection traffic path network and a three-dimensional space coordinate;
station energy levels, connection point positions, public functions, public spaces and peripheral station influence factors related to the comprehensive connection elements are assigned in a weight mode by taking the area as a basis, and are linked with a three-dimensional connection traffic path network, so that value promotion weight addition under characteristic highlighting is performed, and a complete analysis network is formed in urban network analysis;
carrying out walking reachable simulation on the complete analysis network by using the three-dimensional space coordinate, and then carrying out connection reachable simulation operation to obtain a walking reachable simulation result and a connection reachable simulation result;
the walking reachable simulation result and the connection reachable simulation result are positioned in the actual building block, the definition of a rigid equal-time ring layer is finished, and the elastic vitality intensity is simulated;
and superposing the rigid isochronous ring layer and the elastic vitality intensity to finally form the definition of the isochronous three-dimensional influence domain.
Further, the walking reachable simulation takes the three-dimensional space coordinates of the exit gate as a starting point, and the isochronous reachable range simulation is carried out at the walking speed.
Further, the connection reachable simulation comprises two parts of a connection path measure and a connection reachable range, wherein the connection path measure is a walking time and a distance measure taken for arriving at a connection point from an outbound, and the connection reachable range simulation at the connection speed is carried out according to the rest time on an isochronous basis.
Furthermore, after the service range of the urban network analysis is given with the starting point coordinates, the reachable range under the specific search radius is simulated, in the definition of the isochronous circle layer of the three-dimensional influence domain, the outbound gate machine is taken as the starting point, the inbound gate machine and the underground three-dimensional slow traffic network are linked, and the indoor walking network of the public building closely connected with the station is integrated to form the indoor and outdoor three-dimensional slow traffic network.
Further, the weights include a start point weight and an end point weight.
Further, the starting point weight is the energy level released by the trip point, and comprises the station passenger flow and the starting point number of residents, and the ending point weight is the attribute for measuring the attraction degree of the behavior target point, and comprises the area, the capacity and the attraction degree.
Further, the calculation formula for measuring the vitality intensity of the three-dimensional slow traffic network is as follows:
in the formula, betwenness [ i ] r, dr is a Betwenness value of an observation point i under a search radius r and a detour proportion dr, betwenness is intermediate, nj, k [ i ] refers to the number of times that the shortest path between a starting point j and an end point k passes through the observation point i, and nj, k refer to the total number of the shortest paths from j to k; the simulation of the passenger flow mesopticity relative to the mesopticity brings the influence of the end point weight attribute into consideration, and the simulation of how a traveler selects among multiple target points can truly realize the vitality intensity of the three-dimensional slow traffic network.
Furthermore, the simulated elastic' vitality intensity is a slow traffic simulation that the comprehensive connection element acts on the path network in a redundant path behavior selection mode with a certain detour coefficient, and reflects the differentiated distribution of vitality intensity.
The invention has the beneficial effects that:
compared with the definition based on a two-dimensional ground path, the three-dimensional fine definition based on the urban network analysis tool is based on the three-dimensional integration of indoor and outdoor systems, overground and underground slow-moving systems, so that the three-dimensional integration of urban elements and a control mechanism is guided, on the other hand, a defined starting point is finely divided to a pay-out area gate from a station entrance and exit, the integration trend of a non-pay area and an urban functional space is responded, the three-dimensional fine definition is based on an isochronous circle layer of a real three-dimensional path and a space coordinate, the operation performance is stable, and the calculation force requirement is lower; based on service range index calculation, performing isochronous cycle layer expansion at different speeds of various slow traffic connections, improving traffic accessibility cognition, and weakening value difference degree brought by far and near distances, thereby guiding scattered urban resource integration; based on a comprehensive connection visual angle, carrying out system integration on multiple city factors such as traffic, functions, space and the like, and carrying out corresponding weight assignment and addition; based on the isochronous ring layer expansion and comprehensive connection element integration, the research range is expanded to adjacent stations, and a multi-station linkage mechanism under the guidance of isochronous ring layer and slow activity integration is formed.
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In order to more clearly illustrate the embodiments or prior art solutions of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a flow chart of the present invention;
FIG. 2 is a schematic diagram of two-site 5-10-15min walking reach simulation and walking isochronous cycle layer definition according to an embodiment of the present invention;
fig. 3 is a schematic diagram of simulation of a path to a riding connection point and simulation of pedestrian flow of a time-measure connection path according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of an embodiment of the invention illustrating the definition of an isochronous channel;
fig. 5 is a schematic diagram of the MM21 region comprehensive connection vitality intensity simulation and the cherry biscuit station-gang future station section circle layer and vitality intensity along the line according to the embodiment of the invention;
FIG. 6 is a diagram of MM21 regional isochronous three-dimensional impact domain definition modes of an embodiment of the present invention;
fig. 7 is a schematic diagram of a comprehensive docking system of an intermediate interval between a cherry-komachi station and a future station according to an embodiment of the present invention;
fig. 8 is a coupling diagram of the vitality intensity and the redundant path selection of the cherry-street-gang future station according to the embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, a method for defining an isochronous three-dimensional impact domain of a track station includes the following steps:
acquiring a three-dimensional connection traffic path network and three-dimensional space coordinates;
station energy levels, connection point positions, public functions, public spaces and peripheral station influence factors related to the comprehensive connection elements are assigned in a weight mode by taking the area as a basis, and are linked with a three-dimensional connection traffic path network, so that value promotion weight addition under characteristic highlighting is performed, and a complete analysis network is formed in urban network analysis;
carrying out walking reachable simulation on the complete analysis network by using the three-dimensional space coordinate, and then carrying out connection reachable simulation operation to obtain a walking reachable simulation result and a connection reachable simulation result;
the walking reachable simulation result and the connection reachable simulation result are positioned in the actual building block, the definition of a rigid equal-time ring layer is finished, and the elastic vitality intensity is simulated;
and superposing the rigid isochronous ring layer and the elastic vitality intensity to finally form the definition of the isochronous three-dimensional influence domain.
It should be further noted that, in the implementation process, the walking reachable simulation is performed at walking speed by using the three-dimensional space coordinates of the outbound gate as a starting point.
It should be further noted that, in the implementation process, the connection reachable simulation includes two parts, namely a connection path measure and a connection reachable range, wherein the connection path measure is a walking time and a distance measure taken from the outbound to the connection point, and the reachable simulation at the connection speed is performed in the remaining time on an isochronous basis.
It should be further noted that, in the specific implementation process, after the service range of the urban network analysis is given by the starting point coordinates, the reachable range under the specific search radius is simulated, in the isochronous circle definition of the three-dimensional influence domain, the outbound gate is taken as the starting point, the outbound gate is linked with the overground and underground three-dimensional slow traffic network, and the indoor walking network of the public building closely linked with the station is integrated to form the indoor and outdoor three-dimensional slow traffic network.
It should be further noted that, in an implementation, the weight includes a start point weight and an end point weight.
It should be further noted that, in a specific implementation process, the starting point weight is an energy level released by the trip point, and includes a site passenger flow volume and a starting point number of residents, and the ending point weight is an attribute for measuring a degree of attraction of the behavior target point, and includes an area, a capacity and an attraction degree.
It should be further noted that, in a specific implementation process, the calculation formula for measuring the vitality intensity of the three-dimensional slow traffic network is as follows:
betweenness [ i ] r, dr is a Betweenness value of an observation point i under a search radius (isochronous reachable range) r and a detour proportion dr, nj, k [ i ] refers to the number of times the shortest path between a starting point j and an end point k passes through the observation point i, and nj, k refers to the total number of shortest paths from j to k. The observed point Betweenness value is calculated as the set of all "start-end points" that take into account the network distance r between them. When substituting the detour ratio dr, then there is a path selection intervention greater than r. When the measure is weighted, the intermediate index adds the influence of the starting point weight W [ j ], and reflects the real release level of the station passenger flow.
The simulation of the passenger flow intermediacy (Patronage Betweenness) relative to the intermediacy (Betweenness) incorporates the influence of the attribute of destination weight (destination weights), simulates how a traveler selects among multiple target points, and can truly reflect the vitality intensity of the path.
It should be further noted that, in a specific implementation process, the simulated elastic "vitality intensity is a slow traffic simulation in which the comprehensive connection element acts on the path network in a redundant path behavior selection mode with a certain detour coefficient, and reflects a differentiated distribution of vitality intensities.
Example 1: the cherry tree street station-to-port future station interval is provided with a slow walking system with the highest three-dimensional degree of an MM21 region, has various communication connection modes, integrates a public space and a functional system of a chip area core, and is two stations with the highest linkage degree. The method comprises the steps of selecting a cherry biscuit station-gang future station as an analysis object focus, firstly defining a rigid equal-time circle layer of an equal-time three-dimensional influence domain, giving station weights on the elastic activity intensity simulation, and comprehensively considering the influence of peripheral stations such as a cross station, a new high island station and a horse way station.
1) Analysis network construction and weight assignment
The research focuses on a three-dimensional urban space system between a future station and a cherry-biscuit station, and further illustrates the model establishment of an isochronous three-dimensional influence domain. Firstly, establishing an analysis network base, namely a three-dimensional slow walking path network including walking, automatic walking, riding and the like, and incorporating a main public building indoor walking system closely related to a station to form a complete indoor and outdoor three-dimensional slow walking network. On the aspect of comprehensive connection element link and weight assignment, data in the same year shows that the number of the daily average take-off and landing persons of a harbor future station and a cherry tree station is 82391 and 37311 respectively, the number of the daily average take-off and landing persons is used as a weight assignment basis of two stations (starting points), elements passing through a public function space and the like are weighted on the basis of the area, certain weight coefficients are added aiming at specific target points such as an industrial heritage updating space, a coastal landscape space and the like, and the starting points, the target points and a three-dimensional slow-moving network are linked to form a network basis of isochronous three-dimensional influence domain definition and related index analysis.
2) "rigid" isochronous ring layer definition
Definition of circle layers during walking
Firstly, carrying out walking reachable range simulation, wherein a harbor future station is an underground station, a station hall is positioned on a layer B3, and an outbound gate is positioned on the layer B3 and the layer B2; the cherry biscuit station is the overhead station, and station room and gate machine of leaving a station all are located the ground floor. Linking the outbound gate machines of the two stations with a three-dimensional path network, performing 5-10-15min walking reachable simulation, and further performing walking equal-time circle layer definition according to the positioning of elements such as buildings, land rights and the like, as shown in fig. 2;
based on walking isochronal layer definition, it can be seen that 5min walking covers the core area of the station such as the queen square; the 10-min walking of the harbor future station can reach the international exhibition center of the crosswalk, the flow of people leaving the cherry street station is efficiently transmitted through an aerial automatic footpath, and the 10-min reachable ranges of the two stations are overlapped at the landmark building; interconnection is basically realized in a walking 15min interval.
The landmark building is just a building with the highest strength developed at the position of the isochronous ring layer between two stations, and therefore, the cognition that the strength of the station core area is the highest is generally considered, and the landmark building can actually extend to an intermediate node in the establishment of the isochronous three-dimensional influence domain with multi-station linkage.
Docking isochronous ring layer definition
Firstly, the distance and the time measurement of a connection path are carried out based on the three-dimensional space coordinates of connection points, on the basis, the isochronous reachable range simulation under the residual time is carried out at the connection speed, and the isochronous reachable range simulation further falls into the actual building block to complete the isochronous circle layer definition of connection.
In combination with the main walking axis, the MM21 area is provided with a parking point which can provide a large number of connections for private bicycles and electric bicycles, is a main slow-moving connection point, and is also provided with a fixed connection point which can accommodate a small number of municipal harbour bicycles. Through the connection path simulation and the distance and time measurement, it can be seen that most of the bicycle and electric bicycle connection points at the harbor future station are located in the walking range of 5-10min after the station is out of the station, as shown in fig. 3, the connection path takes a considerable period of time in the definition of the isochronous three-dimensional influence domain, rather than performing the isochronous reachable range simulation at the connection speed directly with the station as the starting point.
On the basis of the measure of the connection path, giving a weight according to the capacity of the connection point, and performing people flow simulation on the connection path, wherein three connection points of the bicycles and the electric bicycles with large capacity are the main connection points of the region, as shown in fig. 3; therefore, the three points are used as starting points to perform the connection isochronous cycle layer simulation. In addition, the three main connection points consider the convenience of connection of station traffic, the connection points of the harbor future stations consider connection of Grandmall main walking axes and coastal landscapes, and the main bicycle connection points of the cherry street stations consider connection of peripheral residential areas and are located at the position where the stations walk for 6 min.
The method comprises the steps of defining a connection isochronous ring layer based on a ground riding connection path network and main connection points, and overlapping the connection isochronous ring layer with a walking ring layer to form composite multi-dimensional isochronous ring layer overlapping, wherein the influence domain of two stations connected for 15min basically covers an MM21 area, the main area of the ring layer overlapping is still located in a landmark building with the highest strength, and the value extension and guide significance of the isochronous ring layer is reflected in a centralized mode, as shown in fig. 4.
3) "elastic" vitality intensity simulation
As shown in fig. 5, based on the definition of the "rigid" isochronous layer, the slowness intensity (intermediateness of the traffic) of the three-dimensional path network is visualized by combining the weighting of the starting point (the traffic volume at the station) and the comprehensive connection element. The visible harbor terminal gathers the regional activity core, extends towards the new high island station and the cross shore station, is mainly linked with the middle region of the cherry biscuit station, has higher activity on the coastal landscape and Queen axes along the line, and has the function of people stream relief in the main circle-level superposition region
4) Isochronous three-dimensional impact domain definition
Based on the isochronous circle layer definition and the vitality intensity simulation, three-dimensional public space information is superposed to form two-site isochronous three-dimensional influence domain definition, as shown in fig. 6. The three-dimensional public space of the MM21 area is mainly on the ground, and through the integration of aerial slow-moving systems, the three-dimensional urban space system with the highest density is gathered in the urban interval between the future stations and the cherry biscuit station, and the three-dimensional urban space system is also the interval with the most dense multi-dimensional isochronous ring-layer superposition, so that multi-station linkage is further enhanced by the connection of various slow-moving traffic.
Further focusing on the middle interval of two stations, collecting the main three-dimensional public space and the vitality of people flow in the MM21 area, and being a core interval capable of carrying out the extension and integration of the isochronous cycle layer and the urban vitality. The two stations rely on a three-dimensional slow-walking network in the interval, diversified public functions such as commerce, office, culture, public service and the like are distributed along a main path through the integration of indoor and outdoor three-dimensional traffic and public space systems such as a large number of automatic walking facilities, commercial courtyards, gathering squares, public arts and the like, so that complete comprehensive connection of traffic-function-space-circle layer-characteristics is achieved, and comfortable long-distance walking experience is created, as shown in fig. 7.
As shown in fig. 8, the vitality intensity simulation focusing is performed on the intermediate section, the station nuclear space of the visible harbor future station and the air automatic walkway of the cherry biscuit station both play a significant role in drainage, the three-dimensional walking space around the atrium under the landmark building plays a role in pedestrian flow relief, and the outdoor coastal public space also has high attraction. The shortest path between the two stations is 870m as known from the path search, and the redundant path simulation of the two-station linkage is performed with a detour coefficient of 1.1. Therefore, under the condition of redundant path behavior selection, the redundant path selection is consistent with the main activity interval, and the coupling of the flexible slow-moving behavior selection and the activity of the comprehensive connection system is reflected.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above 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 shows and describes the general principles, principal features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.
Claims (10)
1. A method for defining an isochronous three-dimensional influence domain of a track station is characterized by comprising the following steps:
acquiring a three-dimensional connection traffic path network and a three-dimensional space coordinate;
station energy levels, connection point positions, public functions, public spaces and peripheral station influence factors related to the comprehensive connection elements are assigned in a weight mode by taking the area as a basis, and are linked with a three-dimensional connection traffic path network, so that value promotion weight addition under characteristic highlighting is performed, and a complete analysis network is formed in urban network analysis;
carrying out walking reachable simulation on the complete analysis network by using the three-dimensional space coordinate, and then carrying out connection reachable simulation operation to obtain a walking reachable simulation result and a connection reachable simulation result;
positioning the walking reachable simulation result and the connection reachable simulation result in the actual building block to complete the definition of rigid equal-time ring layers and simulate the elastic activity strength;
and (3) superposing the rigid isochronous ring layer and the elastic activity strength to finally form the definition of the isochronous three-dimensional influence domain.
2. The method for defining the isochronous three-dimensional influence domain of the rail station according to claim 1, wherein the isochronous three-dimensional influence domain simulation is performed at an isochronous achievable range at a walking speed starting from three-dimensional space coordinates of an outbound gate.
3. The method as claimed in claim 1, wherein the docking reachable simulation includes two parts, a docking path measure and a docking reachable range simulation, wherein the docking path measure is a walking time and a distance measure taken from the outbound station to the docking station, and the reachable range simulation at the docking speed is performed with the remaining time on an isochronous basis.
4. The method as claimed in claim 1, wherein the service area of the urban network analysis is simulated by giving coordinates of a starting point, and the three-dimensional influence area is defined by linking an outbound gate with an overground and underground three-dimensional slow-moving network and integrating a public building indoor walking network closely connected with the station to form an indoor and outdoor three-dimensional slow-moving traffic network.
5. The method as claimed in claim 1, wherein the weight includes a start point weight and an end point weight.
6. The method as claimed in claim 5, wherein the starting point weight is the energy level released by the trip point, including the station passenger flow and the starting point number of residents, and the ending point weight is the attribute measuring the attraction degree of the action target point, including the area, the capacity and the attraction degree.
7. The method for defining the isochronous three-dimensional influence domain of the track station as claimed in claim 4, wherein the calculation formula for measuring the vitality intensity of the three-dimensional slow traffic network is as follows:
in the formula, betwenness [ i ] r, dr is a Betwenness value of an observation point i under a search radius r and a detour proportion dr, betwenness is intermediate, nj, k [ i ] refers to the number of times that the shortest path between a starting point j and an end point k passes through the observation point i, and nj, k refer to the total number of the shortest paths from j to k; the simulation of the passenger flow mesopticity relative to the mesopticity brings the influence of the end point weight attribute into consideration, simulates how a traveler selects among multiple target points, and can truly simulate the vitality intensity of the three-dimensional slow traffic network.
8. The method as claimed in claim 1, wherein the simulated elastic "activity intensity is a slow traffic simulation that the comprehensive connection element acts on the path network in a redundant path behavior selection mode with a certain detour coefficient, and reflects a differentiated distribution of the activity intensity.
9. An apparatus, comprising:
one or more processors;
a memory for storing one or more programs;
the one or more programs, when executed by the one or more processors, cause the one or more processors to implement a method of three-dimensional impact domain bounding as recited in any one of claims 1-8 for a track site or the like.
10. A storage medium containing computer-executable instructions for performing a method for isochronous three-dimensional impact domain definition of a track station according to any one of claims 1-8 when executed by a computer processor.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116910853A (en) * | 2023-06-28 | 2023-10-20 | 深圳市蕾奥规划设计咨询股份有限公司 | Pedestrian travel simulation method and device for TOD three-dimensional slow-going space |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116910853A (en) * | 2023-06-28 | 2023-10-20 | 深圳市蕾奥规划设计咨询股份有限公司 | Pedestrian travel simulation method and device for TOD three-dimensional slow-going space |
| CN116910853B (en) * | 2023-06-28 | 2024-05-17 | 深圳市蕾奥规划设计咨询股份有限公司 | Pedestrian travel simulation method and device for TOD three-dimensional slow-going space |
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