CN116452026A - Comprehensive traffic-based traffic junction function evaluation system - Google Patents
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Abstract
The invention belongs to the field of traffic junction function evaluation, in particular to a traffic junction function evaluation system based on comprehensive traffic, which comprises a research foundation, a research object and a function classification and evaluation method, wherein the research foundation is used for defining and observing characteristics of a traffic junction, the research object is used for classifying different traffic transportation modes, the function classification is used for classifying and carding node place models, and the evaluation method is used for classifying and evaluating according to node functions and place functions; the research is to use a core transportation mode as a research object, the transportation junction function as a switching port, and the evaluation result is used for describing the traffic network accessibility space pattern and the space connection strength space pattern of the node city, and the transportation junction function of the node city is compared transversely, so that a decision basis is provided for promoting the construction and development of comprehensive transportation and improving the unbalanced development of a specific region.
Description
Technical Field
The invention relates to the field of traffic junction function evaluation, in particular to a traffic junction function evaluation system based on comprehensive traffic.
Background
With the development of economic globalization and scientific technology, the transportation mode is continuously improved, meanwhile, the travel demands of people are more prominently personalized, and the single transportation mode can not meet the requirements of people on high efficiency, economy and rapidness of transportation, so that new, higher and more perfect requirements on transportation hub construction are required.
In the patent with the application number of CN202211172882.0, the invention discloses an airport comprehensive transportation hub traffic station layout optimization method, which is used for clearly dividing the land-side transportation mode of the airport comprehensive transportation hub into primary and secondary modes; selecting an airport comprehensive transportation hub transportation station layout optimization index; model assumption is carried out on the airport comprehensive transportation hub transportation station layout optimization flow based on the characteristics of space layout, passenger transfer and the like; based on the analysis of the comprehensive transportation hub planning design flow, optimizing and analyzing the transportation station layout method; and on the basis, an airport comprehensive transportation hub transportation station layout optimization model is constructed. The invention can flexibly propose various layout optimization schemes according to design requirements, effectively improve the convenience of passenger transfer and walking and the transfer efficiency of the comprehensive transportation junction, thereby reducing the transfer and walking distance, walking time and streamline interference degree of passengers and having a certain practical application significance for finely guiding the planning, design and optimization work of the comprehensive transportation junction of an airport.
The existing traffic infrastructure is greatly unbalanced in development, and the following problems generally exist: firstly, a high-efficiency collecting and transporting system is not formed yet; secondly, the highway transportation capability is not enough; thirdly, the traffic network structure is imperfect, the coverage breadth is insufficient, and the scale level of the traffic junction is low; fourthly, the effective connection of various transportation modes is not realized yet; fifthly, the inter-city railway construction level is low, and the traffic network function is imperfect.
Therefore, a traffic hub function evaluation system based on comprehensive traffic is provided for the problems.
Disclosure of Invention
In order to make up the defects of the prior art, the research uses a core transportation mode as a research object, the transportation junction function is a switching port, the traffic network accessibility space pattern and the space connection intensity space pattern of the node city are depicted through the evaluation result, the transportation junction function of the node city is transversely compared, and a decision basis is provided for promoting the construction and development of comprehensive transportation and improving the unbalanced development of a specific region.
The technical scheme adopted for solving the technical problems is as follows: the invention discloses a traffic junction function evaluation system based on comprehensive traffic, which comprises a research foundation, a research object and a function classification and evaluation method, wherein the research foundation is used for defining and observing characteristics of a traffic junction, the research object is used for classifying different traffic transportation modes, the function classification is used for classifying and carding node place models, and the evaluation method is used for classifying and evaluating according to node functions and place functions.
Preferably, the research basis comprises the constituent elements of the transportation junction and the characteristics of the transportation junction.
Preferably, the constituent elements of the transportation hub consist of "points" and "lines"; a point, namely a station facility for transportation; wires, i.e. the various trunks in transportation.
Preferably, the characteristics of the transportation hub comprise an anchoring characteristic, a transfer characteristic and a distribution characteristic, and the anchoring strength in the anchoring characteristic is mainly related to the grade and the spatial distribution of the transportation mode.
Preferably, the subject includes railway transportation, road transportation, water transportation, and air transportation.
Preferably, the transportation network and the transportation hub of the railway transportation are respectively a railway network and a railway station, the transportation network of the road transportation is a high-medium-level road, the transportation network and the transportation hub of the water transportation are respectively a high-level channel and a port, and the transportation hub of the air transportation is an airport.
Preferably, the function classification includes a node function and a location function.
Preferably, the influence factors of the node functions comprise riding accessibility, passenger flow, private cars, bicycles, entrances and exits and road space forms or accessibility, and the influence factors of the site functions comprise population, land type, function mixing degree, development intensity and high-speed railway site level planning conditions.
Preferably, the assessment method comprises a traffic network accessibility based and a node city space based connection strength.
The invention has the advantages that:
1. the research is to use a core transportation mode as a research object, the transportation junction function as a switching port, and the evaluation result is used for describing the traffic network accessibility space pattern and the space connection strength space pattern of the node city, and the transportation junction function of the node city is compared transversely, so that a decision basis is provided for promoting the construction and development of comprehensive transportation and improving the unbalanced development of a specific region.
2. In the study, traffic network density taking space syntax quantization indexes as weights is used for constructing a railway network and highway network accessibility model; and constructing a inland waterway network accessibility model by using two indexes of traffic network density analyzed by self spatial distribution and traffic network convenience measured by Euclidean distance. The comprehensive traffic network accessibility is based on the standardized results of the three components to carry out space superposition.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic diagram of a frame structure of a traffic hub function evaluation system according to the present invention;
FIG. 2 is a schematic diagram of a spatial syntactic modeling rule according to the present invention;
FIG. 3 is a schematic diagram of two calculation methods of the simplified line tool of the present invention;
FIG. 4 is a schematic diagram of a functional measuring and calculating framework of a traffic hub node according to the present invention;
FIG. 5 is a schematic diagram of a functional measuring and calculating framework of a transportation hub location according to the present invention.
In the figure: 1. a research basis; 101. the elements of the transportation junction; 102. characteristics of the transportation hub; 2. a subject; 201. railway transportation; 202. transporting on a highway; 203. carrying out waterway transportation; 204. air transportation; 3. classifying functions; 301. a node function; 302. a venue function; 4. an evaluation method; 401. based on traffic network accessibility; 402. based on the node city space link strength.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1, a traffic junction function evaluation system based on comprehensive traffic includes a study base 1, a study object 2, a function classification 3 and an evaluation method 4, wherein the study base 1 is used for defining and observing characteristics of a traffic junction, the study object 2 is used for classifying different traffic transportation modes, the function classification 3 is used for classifying and carding node place models, and the evaluation method 4 is used for classifying and evaluating according to node functions and place functions.
By arranging the documents based on the node-place model, the classification and carding of the influence factors of the node function and the place function are tried, and due to the different research contents, research directions and the like of different scholars, the selection of the influence factors and the measure indexes also has the preference difference. Through reading and arranging documents, the study combes the influence factors and measurement indexes of two commonly used functions, and the influence factors and measurement indexes are specifically shown in Table 1
Table 1 node, site function influencing factor and its measure index list
Embodiment two: node function evaluation based on traffic network accessibility
Referring to fig. 2 to 4, the topology method based on space syntax is suitable for analyzing the connection and conversion of various transportation modes, and is commonly used for measuring the accessibility of the urban internal bus route, subway rail, neighborhood and the like. The present study will analyze various traffic network accessibility by constructing an axis model. Therefore, accessibility is selected as an influence factor of node functions, and the accessibility is measured by adopting space syntax. The study will use an axis method for space division. In space syntax, all axes are to meet the rule of axis modeling, i.e. "longest and least" (as shown in fig. 2), while all axes should be in the same system, i.e. there are no separate breaks, i.e. so-called "subsystems". In the space syntax, any two axes are interconnected, and a closed road is meaningless to the space syntax itself. The "longest and least" axis requirement is to improve the running efficiency of the analysis software by reducing unnecessary nodes in the axis without changing the basic direction of the road. And when all axes are in the same system, the running result of the analysis software is meaningful.
In order to meet the two requirements, the present study summarises the following processing method, which is suitable for realizing axis modeling based on the existing traffic network data. The method is characterized by firstly preprocessing a simplified line tool in the ArcGIS software drawing tool. The principle of the "simplified line" tool is to remove redundant nodes on each line without changing the basic geometry. The tool has two different algorithms, namely: the POINT move and BEND simple, in contrast to analyze the principles of both algorithms, the POINT move calculation method is more in line with the modeling requirements of the space syntax (as shown in fig. 3).
After the preliminary processing, in order to ensure the accuracy of the analysis result, further refinement processing is still required to be performed on the traffic network data, namely, road break points are edited by using ArcGIS software, and redundant nodes of a part of roads which are not subjected to 'reduced line' operation are deleted. This step also ensures that the basic course of the road is not changed.
Therefore, the traffic network density with space syntax quantization indexes as weights is adopted in the study to construct a railway network and highway network accessibility model; and constructing a inland waterway network accessibility model by using two indexes of traffic network density analyzed by self spatial distribution and traffic network convenience measured by Euclidean distance. The comprehensive traffic network accessibility is based on the standardized results of the three components to carry out space superposition. The concrete model construction flow chart is shown in fig. 4.
Embodiment III: site function evaluation based on node city space connection strength
Referring to fig. 5, bei Tuoli ni node-site model theory holds that: the venue function is the sum of all socioeconomic activities that occur after a person arrives at a venue. Therefore, the space connection strength between the node cities is used for representing the place function in the study, the scale level of the different types of transportation hubs and the space distance between the node cities are used as direct factors for influencing the space connection strength, and the place function is measured through an attraction model.
The space scale of each city is represented by P, namely population, the distance between the cities is represented by d, i and j respectively represent two cities under the space connection, T ij Indicating the interaction between any two cities. Namely:
in order to make the model more suitable for the study, the basic correction of the formula is needed. In the study, d represents the space linear distance between the administrative centers of all node cities in the scope of the study area, P represents the scale grade of a certain traffic junction in the scope of the study area, and represents the attractive force between the node city i and the node city j in the scope of the study area.
After calculating the gravitation between the node cities i, starting to collect the gravitation values of the node citiesNamely:
wherein, the liquid crystal display device comprises a liquid crystal display device,representing the sum of the gravities of the node city i and all the rest of the node cities within the range of the research area, T ij Represents the attractive force between node city i and node city j in the range of the research area, and n represents the number of node cities with attractive force not equal to 0 in the range of the research area.
And (3) utilizing ArcGIS software to assign gravitation total values of the node cities under different traffic hub visual angles to administrative center points (as shown in figure 5) of the cities, and carrying out nuclear density analysis by taking the gravitation total values as weights, wherein the result is used for representing the spatial connection strength of the node cities under different visual angles.
The foregoing has shown and described the basic 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, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims.
Claims (9)
1. A traffic hub function evaluation system based on comprehensive traffic is characterized in that: the method comprises a study foundation (1), study objects (2), function classification (3) and an evaluation method (4), wherein the study foundation (1) is used for defining a transportation junction and observing characteristics, the study objects (2) are used for classifying different transportation modes, the function classification (3) is used for classifying and carding node place models, and the evaluation method (4) is used for classifying and evaluating according to node functions and place functions.
2. The comprehensive transportation hub function evaluation system according to claim 1, wherein: the research foundation (1) comprises constituent elements (101) of the transportation junction and characteristics (102) of the transportation junction.
3. The comprehensive transportation hub function evaluation system according to claim 2, wherein: the component elements (101) of the transportation junction consist of 'points' and 'lines'; a point, namely a station facility for transportation; wires, i.e. the various trunks in transportation.
4. The comprehensive transportation hub function evaluation system according to claim 2, wherein: the characteristics (102) of the transportation hub comprise an anchoring characteristic, a transfer characteristic and a distribution characteristic, and the anchoring strength in the anchoring characteristic is mainly related to the grade and the spatial distribution of the transportation mode.
5. The comprehensive transportation hub function evaluation system according to claim 1, wherein: the study (2) includes railway transportation (201), road transportation (202), waterway transportation (203) and air transportation (204).
6. The comprehensive transportation hub function evaluation system according to claim 5, wherein: the transportation network and the transportation junction of the railway transportation (201) are respectively a railway network and a railway station, the transportation network of the highway transportation (202) is a high-medium-level highway, the transportation network and the transportation junction of the waterway transportation (203) are respectively a high-level channel and a port, and the transportation junction of the aviation transportation (204) is an airport.
7. The comprehensive transportation hub function evaluation system according to claim 1, wherein: the functional class (3) comprises a node function (301) and a venue function (302).
8. The comprehensive transportation hub function evaluation system according to claim 7, wherein: the influence factors of the node functions (301) comprise riding accessibility, passenger flow, private cars, bicycles, entrances and exits and road space forms or accessibility, and the influence factors of the place functions (302) comprise population, land type, function mixing degree, development strength and high-speed railway station level planning conditions.
9. The comprehensive transportation hub function evaluation system according to claim 1, wherein: the assessment method (4) comprises a traffic network accessibility-based (401) and a node city space-based strength of connection (402).
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