A comprehensive evaluation method for urban development sustainability

Abstract

The present invention relates to the technical field of data processing, and specifically discloses a comprehensive evaluation method for the sustainability of urban development, comprising setting a monitoring period and obtaining monitoring values ​​of monitoring items related to urban development within the monitoring period, and generating a pollution coefficient of the city based on the monitoring values; setting a judgment interval, and comparing the pollution coefficient with the judgment interval to obtain a judgment result; and generating an evaluation result based on the judgment result. The present invention provides a comprehensive evaluation method and steps, and makes a preliminary evaluation of the development status of the city through the pollution coefficient, so as to judge whether the current city can continue to develop industries with pollution overflow in most cases, and provide basic evaluation and guidance for the development of the current city. In addition, the judgment interval not only reflects the current monitoring period, but also takes into account the situation of meeting the development needs of the main city in the next period, thereby generating a variable margin, helping the current city to better plan in advance and improve the fault tolerance rate of the evaluation.

Description

Technical Field

[0001] The present invention relates to the technical field of data processing, and in particular to a comprehensive evaluation method for the sustainability of urban development. Background Art

[0002] The assessment of urban sustainable development is related to the city's development direction and sustainable development capabilities. By evaluating the city's resource utilization, it can help the city manage resources more effectively, reduce resource waste, improve resource utilization efficiency, and reduce the impact on the environment. It helps to ensure that the basic living needs of urban residents are met, enhance residents' sense of happiness in life, and promote social stability and harmonious development.

[0003] At present, the evaluation of sustainable development of cities is usually based on the evaluation results obtained by analyzing the relevant data of the city over the years, including multiple evaluation aspects, among which the impact of urban development on the environment, including air quality, water quality, soil pollution, garbage disposal, etc., the resource utilization efficiency of the city, energy consumption and the health of the ecosystem are all the focus of the evaluation. Obviously, the evaluation criteria will affect the final result. The current evaluation criteria are to classify cities and then set them according to the categories, such as the Chinese invention patent with publication number CN 104462823 A, which divides cities into multiple types based on the proportion of the secondary industry and the tertiary industry in the pillar industry, and finally evaluates them in the same type. The problem with this method is that the classification criteria are too fixed and do not take into account the development needs of different cities and the increase in pollution treatment capacity due to scientific and technological progress. Especially for the satellite cities of some large cities, it is necessary to balance the pursuit of urban development and meet the needs of the corresponding main city, and it is difficult to obtain reasonable result suggestions through traditional evaluation methods. In view of this, the present invention proposes a comprehensive evaluation method for the sustainability of urban development. Summary of the invention

[0004] The purpose of the present invention is to provide a comprehensive evaluation method for urban development sustainability to solve the following technical problems:

[0005] How to conduct a more flexible and comprehensive assessment of the sustainability of urban development and provide suggestions on how to strike a balance between pursuing urban development in satellite cities and meeting the needs of the corresponding main cities.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A comprehensive evaluation method for urban development sustainability includes the following steps:

[0008] Set a monitoring period and obtain monitoring values ​​of monitoring items related to urban development within the monitoring period, and generate the pollution coefficient of the city based on the monitoring values;

[0009] Set a judgment interval, and compare the pollution coefficient with the judgment interval to obtain the judgment result;

[0010] An evaluation result is generated based on the judgment result.

[0011] Through the above technical solution: a comprehensive evaluation method and steps are provided, and a preliminary evaluation of the city's development status is conducted through the pollution coefficient, so as to judge in most cases whether the current city can continue to develop industries with pollution spillovers, and provide basic evaluation and guidance for the current city's development.

[0012] As a further technical solution of the present invention: the process of generating the pollution coefficient of a city includes:

[0013] By formula:

[0014]

[0015] Where N is the total number of monitoring items, G is the preset conversion function, when Output As a result, when Output 0, is the output of the monitoring project, is the consumption of the corresponding monitoring item, A i is the preset reference value, σ i is the preset weight coefficient of the monitoring project, and δ is the preset intercept value based on the data of the current city monitoring value.

[0016] As a further technical solution of the present invention: the process of comparing the pollution coefficient with the judgment interval to obtain the judgment result includes:

[0017] Compare the pollution coefficient POL with the judgment interval [P1, P2];

[0018] If POL>P2, it is judged that the current city has excessive pollution accumulation in this cycle;

[0019] If POL∈[P1, P2], it is judged that the current city has less pollution accumulation in this cycle;

[0020] If POL<P1, it is judged that the pollution accumulation in the current city during this period is very small.

[0021] As a further technical solution of the present invention: the process of obtaining the judgment interval includes:

[0022] By formula:

[0023]

[0024]

[0025] Among them, T is the preset basic value, R is the preset control function, P add All monitoring items whose preset weight coefficient is greater than the preset value Q0 is the cumulative sum of the demand value of the main city in the current monitoring period. The demand value is set based on the pollution emission status of the main resources provided by the current city to the main city. Δ is the estimated increase in the demand value in the next monitoring period. Δ is obtained based on data analysis and prediction. The prediction method is preferably a simple smoothing model. In particular, when the current city is the main city, Q0=Δ.

[0026] Through the above technical solution: a process for obtaining the judgment interval is provided. Specifically, the judgment interval takes into account the main city needs corresponding to the current city. The judgment interval not only reflects the current monitoring period but also takes into account the situation of meeting the development needs of the main city in the next period, thereby generating a variable margin to help the current city better plan ahead and improve the fault tolerance rate of the assessment.

[0027] As a further technical solution of the present invention: the method for obtaining the demand value includes:

[0028] By formula:

[0029]

[0030] Get the demand value Q0 of this city in the current cycle, where M is the number of resource types provided by the current city to the main city, m j is the number of pollutant types emitted during the production process of each type, is the preset specific gravity value corresponding to the pollution type, u z It is the unitized emission value corresponding to the pollution type.

[0031] As a further technical solution of the present invention: the process of generating an evaluation result according to the judgment result includes:

[0032] If the judgment result is that the current city has excessive pollution accumulation in this cycle, the assessment result is that the current city should not add enterprises with pollution emissions in industries with demand in the main city;

[0033] If the judgment result is that the current city has very little pollution accumulation in this cycle, the assessment result is that the current city will increase the industries with pollution emissions among the industries in demand in the main city;

[0034] If the judgment result is that the current city has less pollution accumulation in this cycle, the resident residence index of the current city will be obtained, and the impact coefficient will be obtained based on the impact of industries with pollution emissions in the main city's demand industries on the resident residence index, and the allowable increase in industries with pollution emissions will be output based on the impact coefficient.

[0035] As a further technical solution of the present invention: the process of obtaining the influence coefficient includes:

[0036] Set the unit increase for industries with pollution emissions;

[0037] Construct the first comparison between industries with pollution emissions and residential indicators under unit increase;

[0038] According to the first comparison relationship, the change amount of each item of the residential index after adding one unit of industry with pollution emission is obtained;

[0039] The impact coefficient is obtained by taking a weighted sum based on the ratio of the change amount to the standard amount of each item.

[0040] As a further technical solution of the present invention: the process of outputting the allowable increase of industries with pollution emissions based on the impact coefficient includes:

[0041] The impact coefficient is compared with the preset critical value. If the impact coefficient is less than the preset critical value, it is determined to continue to increase the industry with pollution emissions by one unit; otherwise, it is determined not to increase the industry with pollution emissions by one unit.

[0042] Through the above technical scheme: a process for generating evaluation results is provided. Specifically, the present invention further subdivides the situation where the judgment result is that the pollution accumulation in the current city is small during the current period on the basis of the judgment result based on the judgment interval, and obtains the most suitable allowable increase under the current state by setting a direct relationship between the unit increase and the corresponding influence coefficient, thereby providing a more accurate evaluation result and assisting in development planning.

[0043] As a further technical solution of the present invention: the process of obtaining the influence coefficient also includes:

[0044] Construct a second direct comparison between other indicators of urban sustainable development and industries with pollution emissions per unit increase;

[0045] According to the second comparison relationship, the change amount of each item of the corresponding indicator after adding one unit of industry with pollution emission is obtained;

[0046] The weighted sum is taken based on the ratio of the change amount to the standard amount of each project to obtain the impact coefficient of the corresponding indicator.

[0047] Beneficial effects of the present invention:

[0048] (1) The present invention makes a preliminary assessment of the development status of a city through the pollution coefficient, thereby judging in most cases whether the current city can continue to develop industries with pollution spillovers, and providing basic assessment and guidance for the development of the current city.

[0049] (2) The present invention takes into account the main city demand corresponding to the current city through the judgment interval. The judgment interval not only reflects the current monitoring period but also takes into account the situation of meeting the development demand of the main city in the next period, thereby generating a variable margin, helping the current city to better plan ahead and improve the fault tolerance of the evaluation.

[0050] (3) Based on the judgment results based on the judgment interval, the present invention further subdivides the situation where the judgment result is that the pollution accumulation in the current city is small during this period, and obtains the most suitable allowable increase under the current state by setting a direct relationship between the unit increase and the corresponding influence coefficient, thereby providing a more accurate evaluation result to assist in development planning. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] The present invention will be further described below in conjunction with the accompanying drawings.

[0052] Figure 1 is a flow chart of the steps of the evaluation method of the present invention;

[0053] Figure 2 It is a schematic diagram of the steps of the method for obtaining the judgment result of the present invention. DETAILED DESCRIPTION

[0054] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0055] See also Figure 1 As shown, in one embodiment, a comprehensive evaluation method for urban development sustainability is provided, comprising:

[0056] S1. Set a monitoring period and obtain monitoring values ​​of monitoring items related to urban development within the monitoring period, and generate a pollution coefficient of the city based on the monitoring values;

[0057] S2. Set a judgment interval, and compare the pollution coefficient with the judgment interval to obtain a judgment result;

[0058] S3. Generate an evaluation result based on the judgment result.

[0059] Sustainability assessment can help city managers understand the current development status of the city, identify problems and challenges, and formulate appropriate strategies and measures for future urban planning and development. This embodiment provides a comprehensive assessment method and steps, and conducts a preliminary assessment of the city's development status through the pollution coefficient. In most cases, it can be judged whether the current city can continue to develop industries with pollution spillovers, providing basic assessment and guidance for the current city's development.

[0060] The process of generating a city's pollution coefficient includes:

[0061] By formula:

[0062]

[0063] Where N is the total number of monitoring items, G is the preset conversion function, when Output As a result, when Output 0, is the output of the monitoring project, It is the consumption of the corresponding monitoring project, such as the discharge of polluted water is one kind of output and the consumption corresponding to the treatment capacity of the sewage plant, A i is the preset reference value, σ i It is the preset weight coefficient of the monitoring project, and δ is the preset intercept value based on the data of the current city’s monitoring value. The intercept value is the preset value, which is positively correlated with the level of development of pollution treatment technology and the current speed of urban application.

[0064] refer to Figure 2 , the process of comparing the pollution coefficient with the judgment interval to obtain the judgment result includes:

[0065] S2.1, compare the pollution coefficient POL with the judgment interval [P1, P2];

[0066] S2.2, if POL>P2, then it is judged that POL<P1, and the pollution accumulation in the current city is excessive in this cycle;

[0067] S2.3, if POL∈[P1, P2], it is judged that the pollution accumulation of the current city in this cycle is small;

[0068] S2.4. If POL<P1, it is judged that the pollution accumulation in the current city is very small during this period.

[0069] The process of obtaining the judgment interval includes:

[0070] By formula:

[0071]

[0072]

[0073] Wherein, T is a preset basic value, R is a preset comparison function, preferably a comparison table function, and P add All monitoring items whose preset weight coefficient is greater than the preset value The cumulative sum of, in this embodiment, the preset value is 0.26, P add That is, all monitoring items whose preset weight coefficient is greater than 0.26 Q0 is the cumulative sum of the demand value of the main city in the current monitoring period. The demand value is set based on the pollution emission status of the main resources provided by the current city to the main city. Δ is the estimated increase in the demand value in the next monitoring period. Δ is obtained based on data analysis and prediction. The prediction method is preferably a simple smoothing model. In particular, when the current city is the main city, Q0=Δ.

[0074] In this embodiment, a process for obtaining the judgment interval is provided. Specifically, the judgment interval takes into account the main city demand corresponding to the current city. The judgment interval not only reflects the current monitoring period but also takes into account the situation of meeting the development needs of the main city in the next period, thereby generating a variable margin to help the current city better plan ahead and improve the fault tolerance of the evaluation.

[0075] The methods for obtaining the demand value include:

[0076] By formula:

[0077]

[0078] Get the demand value Q0 of this city in the current cycle, where M is the number of resource types provided by the current city to the main city, m j is the number of pollutant types emitted during the production process of each type, is the preset specific gravity value corresponding to the pollution type, u z It is the unitized emission value corresponding to the pollution type, which includes air pollution, water pollution, soil pollution, noise pollution, solid waste pollution, hazardous waste pollution, etc.

[0079] The process of generating an evaluation result based on the judgment result includes:

[0080] S3.1. If the judgment result is that the current city has excessive pollution accumulation in this cycle, the assessment result is that the current city should not add enterprises with pollution emissions in industries with demand in the main city;

[0081] S3.2. If the judgment result is that the current city has very little pollution accumulation in this cycle, the assessment result is that the current city can plan to increase industries with pollution emissions among the industries in demand in the main city;

[0082] S3.3. If the judgment result is that the current city has less pollution accumulation in this cycle, the resident residence index of the current city is obtained, and the influence coefficient is obtained based on the impact of industries with pollution emissions in the main city's demand industries on the resident residence index. The allowable increase of industries with pollution emissions is output based on the influence coefficient. The resident residence index of the current city is obtained through big data or professional statistical websites.

[0083] The process of obtaining the influence coefficient includes:

[0084] S3.4. Set the unit increase of industries with pollution emissions;

[0085] S3.5. Construct the first comparison relationship between industries with pollution emissions and residential indicators under unit increase. The comparison relationship can be obtained by constructing a neural network model for regression analysis. The process of constructing a neural network model belongs to the existing technology, and the specific process will not be described in detail.

[0086] S3.6. Obtain the change in each item of the residential index after adding one unit of industry with pollution emissions based on the first comparison relationship;

[0087] S3.7. Perform weighted summation based on the ratio of the change amount to the standard amount of each item to obtain the impact coefficient.

[0088] S3.8. The process of outputting the allowable increase of industries with pollution emissions based on the impact coefficient includes:

[0089] S3.9. Compare the impact coefficient with the preset critical value. If the impact coefficient is less than the preset critical value, it is determined that the industry with pollution emissions should continue to be increased by one unit; otherwise, it is determined that the industry with pollution emissions should not be increased by one unit.

[0090] By evaluating the sustainability of the city, city managers can better improve the city's environmental quality and enhance the quality of life of residents, including improving air quality, optimizing the transportation system, and providing good education and medical resources. In this embodiment, a process for generating evaluation results is provided. Specifically, based on the judgment results based on the judgment interval, the present invention further subdivides the situation where the judgment result is that the current city has less pollution accumulation in this cycle, and obtains the most suitable allowable increase under the current state by setting a direct relationship between the unit increase and the corresponding influence coefficient, thereby providing a more accurate evaluation result and assisting in development planning.

[0091] Urban sustainability assessment not only contributes to the healthy development of cities, but also helps to achieve coordinated development of the economy, society and environment, and provides important guidance and support for the sustainable development of cities.

[0092] It should be noted that when the current city serves as a satellite city of the main city, most residents only live locally and work in the main city. Therefore, in order to ensure the sustainable development of the satellite city and ensure the living environment, retaining the permanent population is the most important indicator for the satellite city.

[0093] In addition, in order to comprehensively consider and obtain as much information as possible, other indicators related to urban development can be taken into consideration. Specifically, the process of obtaining the impact coefficient also includes:

[0094] Construct a second direct comparison between other indicators of sustainable urban development and industries with pollution emissions per unit increase, such as urban planning degree, digitalization degree, etc.

[0095] According to the second comparison relationship, the change amount of each item of the corresponding indicator after adding one unit of industry with pollution emission is obtained;

[0096] The weighted sum is taken based on the ratio of the change amount to the standard amount of each project to obtain the impact coefficient of the corresponding indicator.

[0097] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A comprehensive evaluation method for urban development sustainability, characterized in that: The steps include: Set a monitoring period and obtain monitoring values ​​of monitoring items related to urban development within the monitoring period, and generate the pollution coefficient of the city based on the monitoring values; The process of generating a city's pollution coefficient includes: By formula: ; in, is the total number of items in the monitoring project, is the preset conversion function, is the output of the monitoring project, is the consumption of the corresponding monitoring item, is the preset reference value. is the preset weight coefficient of the monitoring project. It is the preset intercept value based on the data of the city’s monitoring value; Set a judgment interval, and compare the pollution coefficient with the judgment interval to obtain the judgment result; The process of comparing the contamination coefficient with the judgment interval to obtain the judgment result includes: The pollution factor And judgment interval Make comparisons; like > , it is judged that the pollution accumulation in the current city is excessive in this cycle; like ∈ , it is judged that the current city has less pollution accumulation in this cycle; like < , it is judged that the current city has very little pollution accumulation in this cycle; The process of obtaining the judgment interval includes: By formula: ; ; in, is the default base value. is the default comparison function, All monitoring items whose preset weight coefficient is greater than the preset value The cumulative sum of is the demand value of the main city in the current monitoring period, is the estimated increase in demand value in the next monitoring period; The methods for obtaining the demand value include: By formula: ; Get the demand value of this city in the current period ,in is the number of resource types that the current city provides for the main city. is the number of pollutant types emitted during the production process of each type, It is the preset specific gravity value corresponding to the pollution type. is the unitized emission value corresponding to the pollution type; generating an evaluation result based on the judgment result; The process of generating an evaluation result based on the judgment result includes: If the judgment result is that the current city has excessive pollution accumulation in this cycle, the assessment result is that the current city should not add enterprises with pollution emissions in industries with demand in the main city; If the judgment result is that the current city has very little pollution accumulation in this cycle, the assessment result is that the current city can increase the industries with pollution emissions among the industries in demand in the main city; If the judgment result is that the current city has less pollution accumulation in this cycle, the current city's resident housing index is obtained, and the impact coefficient is obtained based on the impact of industries with pollution emissions in the main city's demand industries on the resident housing index, and the allowable increase of industries with pollution emissions is output based on the impact coefficient; The process of obtaining the influence coefficient includes: Set the unit increase for industries with pollution emissions; Construct the first comparison between industries with pollution emissions and residential indicators under unit increase; According to the first comparison relationship, the change amount of each item of the residential index after adding one unit of industry with pollution emission is obtained; The impact coefficient is obtained by taking a weighted sum based on the ratio of the change amount to the standard amount of each item.

2. A comprehensive evaluation method for urban development sustainability according to claim 1, characterized in that: The process of outputting the allowable increase of industries with pollution emissions based on the impact coefficient includes: The impact coefficient is compared with the preset critical value. If the impact coefficient is less than the preset critical value, it is determined to continue to increase the industry with pollution emissions by one unit; otherwise, it is determined not to increase the industry with pollution emissions by one unit.

3. The comprehensive evaluation method for urban development sustainability according to claim 1 is characterized in that: The process of obtaining the influence coefficient also includes: Construct a second direct comparison between other indicators of urban sustainable development and industries with pollution emissions per unit increase; According to the second comparison relationship, the change amount of each item of the corresponding indicator after adding one unit of industry with pollution emission is obtained; The weighted sum is taken based on the ratio of the change amount to the standard amount of each project to obtain the impact coefficient of the corresponding indicator.

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