CN103295093A - Urban center automatic site-selection method based on integration level - Google Patents
Urban center automatic site-selection method based on integration level Download PDFInfo
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Abstract
Provided is an urban center automatic site-selection method based on an integration level. The urban center automatic site-selection method based on the integration level comprises the following steps: firstly, inputting the geographic data of the urban center into a computer, wherein the geographic data are used as essential data, secondly, drawing a spatial network diagram according to urban plane topographic data, thirdly, measuring and calculating the overall integration level and the partial integration level of an urban spatial network, and finally, screening the overall integration level and the partial integration level of each spatial unit in the spatial network, confirming spatial site-selection of different levels of centers, and outputting site-selection results. By means of the urban center automatic site-selection method based on the integration level, the collected information is reliable, the site-selection results are objective, the problems that the site of an urban center which is selected though the intellectual activity decision of human brains in urban construction engineering practice is subjective and random are solved, the site of the urban center is selected automatically, the efficiency of decision-making in center site-selection is improved greatly, working time is shortened, and the urban center automatic site-selection method based on the integration level is suitable for being used for solving problems of selecting the sites of different levels of urban centers.
Description
Technical field
The present invention relates to the city planning technical field, be a kind of downtown area automatic addressing method based on integrated level.
Background technology
The location problem of downtown area is to need the important content that solves in the planning engineerings such as strategy for urban development planning in the city planning field, general plan, new city planning.
For a long time, people have carried out a large amount of practice summaries to the addressing technology of downtown area.Traditional site selecting method or overweight historical the conclusion and functional analysis; Perhaps from the urban history source, analyze the historical track that the down town develops; Perhaps from function divisions such as center commercial affairs, finance, trade, office, retail research down town function; Perhaps analyze the position variation of down town by land price and land rent.
The feature of the traditional technology method of downtown area addressing and limitation are summed up
Classic method is put forth effort on the functional and sign of space underlying social, lacks for the inherence deduction of city space system to analyze, and exists subjectivity strong, is difficult to quantification, not easy-operating limitation.Mainly have following problem: 1. the technology operation is based on qualitative: rely on planner's personal experience to carry out analysis and judgement, thereby can't carry out fully comprehensively analyzing, 2. technical result subjectivity, random big, operability is poor: the intellection of this support human brain, there is limitation in the rationality of judging and accuracy, the planning technology result lacks accurate, unique conclusion, and 3. work efficiency is low: the planning technology process is loaded down with trivial details, need carry out the human brain of a large amount of poor efficiencys judges, consuming time very long, inefficiency.
On the other hand, from the 1970's Britain scholar Bill Xi Lieer the space syntax theory is proposed first, significant correlation between the integrated level numerical value of city space network and the layout of downtown area has obtained the series of theories confirmation, the integrated level numerical value of space cell has tangible quantization characteristic in many achievement proofs downtown area, can be used as the foundation of the layout addressing of judging the center.But the analysis of this respect needs the professional at present, because it is big to analyze operand, need to drop into a large amount of manpowers, such analysis result can be subjected to analyst's subjective judgement influence on the one hand, cooperation between the personnel causes occurring easily error, and efficient is also very low on the other hand.Therefore the space syntax theory is mainly used in academic research at present, does not still have the extensive practice in engineering construction.
Summary of the invention
The problem to be solved in the present invention is: in the existing physical construction planning, rely on people's subjective experience to judge to the selection of downtown area, random big, operability is poor, and efficient is low.
Technical scheme of the present invention is: a kind of downtown area automatic addressing method based on integrated level may further comprise the steps:
1) obtains the geodata of city proper, and import computer workstation, obtain city plane earth graphic data;
2) computer workstation carries out the data processing, is basic data with city plane earth graphic data, and the unit, city space is identified automatically, makes up the city space network chart, and unit, described city space comprises road, lane, street and square;
3) overall integrated level and the local integrated level of measuring and calculating city space network chart;
4) according to overall integrated level and local integrated level each space cell in the spatial network figure is carried out the automatic screening division, obtain the space addressing of different brackets center, and addressing printout as a result obtained engineering drawing, and finish center automatic addressing, be used for engineering construction planning.
The geodata of city proper comprises the remote sensing images that contain urban geographic information or the image of taking photo by plane, by the scanning device input computer workstation of resolution greater than 1200DPI.
Further, step 4) is specially:
4.1) overall integrated level and the local integrated level of each space cell in the spatial network figure are carried out automatic screening, sign meets the space cell of special value requirement:
4.1.1) the overall integrated level of screening is greater than 0.8, local integrated level is designated " master's center location position, city " greater than 3 space cell;
4.1.2) the overall integrated level of screening is greater than 0.5, local integrated level is designated " sub-center addressing position, city " less than 3 space cell;
4.1.3) the overall integrated level of screening is between 0.7-0.8, local integrated level is designated " regional-level center location position " greater than 3 space cell;
4.1.4) the overall integrated level of screening is less than 0.7, local integrated level is designated " new city center location position " greater than 3 space cell;
4.2) space cell that all are identified saves as the best position of downtown area addressing in computer workstation, and be output as the engineering drawing that physical construction planning can directly use automatically by the external plotting equipment of computer workstation:
4.2.1) import plotting equipment with the physical construction planning base map as the drawing base map;
4.2.2) with step 4.1) the addressing position sign of the different brackets downtown area that obtains is drawn on the base map, printout obtains engineering drawing.
The present invention is directed to existing downtown area site selecting method and have the intellection of dependence human brain, subjectivity is strong, operability is poor, the shortcoming of inefficiency, with the significant correlation introducing city planning engineering practice between integrated level and the downtown area layout, the technical scheme of the fast automatic addressing in a kind of downtown area is provided, the result who obtains meets engineering construction, the requirement of science and technology such as traffic, the present invention is with norm of analysisization, it is full-automatic that addressing work is realized by computer technology, eliminated the loaded down with trivial details and error of manual operation, and be easy to directly dock the efficient height with existing land management data.Specifically:
1, the present invention relies on computer equipment to make up the automatic technology scheme of center addressing, by equipment such as scanner, plotting apparatuss, can directly import the original image of remote sensing satellite or air-mapping aircraft acquisition imports the urban geography data scanning, particularly for the development trend of present data electronization, the electronic data of urban geography data can be directly docked in the present invention easily, obtain engineering drawing, have outstanding operability.The input data are all relied on the existing data of urban planning administration department, need not to carry out extra measurement work for the treatment of;
2, the present invention proposes a kind of normalized method, transfer theory to the engineering practical operation, replace human brain intelligence to judge with automation process, its techniqueflow adopts statistical standard and the computing method that quantize fully, its operating process is objective, the conclusion that obtains has accuracy, uniqueness, is directly used in actual engineering construction;
3, technical scheme of the present invention cooperates automatic flow with computer workstation, finish the calculation analysis work of magnanimity, traditional technology method needs the professional to carry out a large amount of loaded down with trivial details subjectivities relatively, by the present invention, the work efficiency of downtown area addressing is largely increased, robotization is finished, and need not professional's requirement, technology obvious reduction consuming time.Follow technical scheme disclosed by the invention, the hardware support of coupled computer workstation, be input to output engineering drawing from basic data, can in 1 day time, finish the center addressing work in a medium-scale city, in servicely do not need artificial intervention, work efficiency has improved 10 times, and technology is consuming time not as good as 1/10th of conventional art way.
Description of drawings
Fig. 1 is process flow diagram of the present invention.
Fig. 2 is city space, Nanjing network diagram.
Fig. 3 is Nanjing overall situation integrated level synoptic diagram.
Fig. 4 is the local integrated level synoptic diagram in Nanjing.
Fig. 5 is Nanjing different brackets center addressing space cell screening synoptic diagram
Fig. 6 is the engineering drawing by downtown area, the Nanjing addressing of external plotting apparatus output.
Embodiment
The invention provides a kind of technology of the fast automatic addressing in downtown area based on integrated level, at first the geodata with the city proper is basic data input computing machine; Secondly, according to city plane earth graphic data rendering space network chart; Again, overall integrated level and the local integrated level of measuring and calculating city space network; At last overall integrated level and the local integrated level of each space cell in the spatial network are screened, determine the space addressing of different brackets center, and with addressing printout as a result.Information acquisition of the present invention is reliable, the addressing result is objective and accurate, solve downtown area addressing in the city construction engineering practice and utilized the make a strategic decision deficiency of existing subjectivity, randomness of human brain intellection, and robotization is finished, improved the efficiency of decision-making of center addressing greatly, shorten the working time, be applicable to the solution of the downtown area construction location problem of various grades.
Addressing case and accompanying drawing below with reference to the center, Nanjing explain technical scheme of the present invention, and as shown in Figure 1, concrete enforcement of the present invention may further comprise the steps:
1) by high-resolution scanner (resolution is greater than 1200DPI), will comprise the image input service station of taking photo by plane of Nanjing urban geographic information;
2) in workstation, will be basic data with step 1) city plane earth graphic data, unit, city space such as road, Jie Xiang, square will be identified automatically, make up the city space network chart;
2.1) in workstation, be basic data with step 1) city plane earth graphic data, the space cells such as road, lane, street that constitute the city space outerpace to be identified automatically, each space cell is designated as an analytic unit;
2.2) according to the connected relation of adjacent space unit, be connected to each other, generate the city space network chart, as Fig. 2;
3) with step 2) middle space network chart is as analytic target, and overall integrated level and the local integrated level of each space cell of measuring and calculating Nanjing are as Fig. 3 and Fig. 4;
4) overall integrated level and the local integrated level of each space cell in the network of city space, Nanjing are carried out automatic screening, sign meets the space cell of special value requirement, determining the space addressing of different brackets center, and be engineering drawing with addressing printout as a result:
4.1) overall integrated level and local integrated level to each space cell in the spatial network are carried out automatic screening, sign meets the space cell of special value requirement:
4.1.1) the overall integrated level of screening is greater than 0.8, local integrated level is designated " master's center location position, city ", as Fig. 5 (a) greater than 3 space cell;
4.1.2) the overall integrated level of screening is greater than 0.5, local integrated level is designated " sub-center addressing position, city ", as Fig. 5 (d) less than 3 space cell;
4.1.3) the overall integrated level of screening is between 0.7-0.8, local integrated level is designated " regional-level center location position ", as Fig. 5 (b) greater than 3 space cell;
4.1.4) the overall integrated level of screening is less than 0.7, local integrated level is designated " new city center location position ", as Fig. 5 (c) greater than 3 space cell;
4.2) space cell that all are identified saves as the best position of downtown area addressing in workstation, and be output as the engineering drawing that overall city planning can directly be used automatically by the external special-purpose plotting equipment of workstation:
4.2.1) import plotting equipment with the overall city planning base map as the drawing base map;
4.2.2) the addressing position sign of different brackets downtown area is drawn on the base map, printout becomes engineering drawing, as Fig. 6.
Claims (3)
1. downtown area automatic addressing method based on integrated level is characterized in that may further comprise the steps:
1) obtains the geodata of city proper, and import computer workstation, obtain city plane earth graphic data;
2) computer workstation carries out the data processing, is basic data with city plane earth graphic data, and the unit, city space is identified automatically, makes up the city space network chart, and unit, described city space comprises road, lane, street and square;
3) overall integrated level and the local integrated level of measuring and calculating city space network chart;
4) according to overall integrated level and local integrated level each space cell in the spatial network figure is carried out the automatic screening division, obtain the space addressing of different brackets center, and addressing printout as a result obtained engineering drawing, and finish center automatic addressing, be used for engineering construction planning.
2. a kind of downtown area automatic addressing method based on integrated level according to claim 1, the geodata that it is characterized in that the city proper comprises the remote sensing images that contain urban geographic information or the image of taking photo by plane, by the scanning device input computer workstation of resolution greater than 1200DPI.
3. a kind of downtown area automatic addressing method based on integrated level according to claim 1 is characterized in that step 4) is specially:
4.1) overall integrated level and the local integrated level of each space cell in the spatial network figure are carried out automatic screening, sign meets the space cell of special value requirement:
4.1.1) the overall integrated level of screening is greater than 0.8, local integrated level is designated " master's center location position, city " greater than 3 space cell;
4.1.2) the overall integrated level of screening is greater than 0.5, local integrated level is designated " sub-center addressing position, city " less than 3 space cell;
4.1.3) the overall integrated level of screening is between 0.7-0.8, local integrated level is designated " regional-level center location position " greater than 3 space cell;
4.1.4) the overall integrated level of screening is less than 0.7, local integrated level is designated " new city center location position " greater than 3 space cell;
4.2) space cell that all are identified saves as the best position of downtown area addressing in computer workstation, and be output as the engineering drawing that physical construction planning can directly use automatically by the external plotting equipment of computer workstation:
4.2.1) import plotting equipment with the physical construction planning base map as the drawing base map;
4.2.2) with step 4.1) the addressing position sign of the different brackets downtown area that obtains is drawn on the base map, printout obtains engineering drawing.
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Cited By (2)
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| CN105160089A (en) * | 2015-08-26 | 2015-12-16 | 华南理工大学 | Assisted planning and site selection method for network optimization based on space syntax |
| CN110288202A (en) * | 2019-05-31 | 2019-09-27 | 武汉大学 | A kind of Urban Park Green Space frastructure state Evaluation and Optimization |
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| CN102609807A (en) * | 2012-01-18 | 2012-07-25 | 东南大学 | Method for determining position and agglomeration intensity of city core area |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102609807A (en) * | 2012-01-18 | 2012-07-25 | 东南大学 | Method for determining position and agglomeration intensity of city core area |
Non-Patent Citations (3)
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| 史宜等: "城市中心区空间区位选择的空间句法研究——以南京为例", 《转型与重构——2011中国城市规划年会论文集》 * |
| 张宝铮: "基于空间句法的长沙市中心城区发展研究", 《中国优秀硕士学位论文全文数据库工程科技Ⅱ辑》 * |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105160089A (en) * | 2015-08-26 | 2015-12-16 | 华南理工大学 | Assisted planning and site selection method for network optimization based on space syntax |
| CN105160089B (en) * | 2015-08-26 | 2018-06-22 | 华南理工大学 | A kind of auxiliary programming site selecting method based on the Space Syntax network optimization |
| CN110288202A (en) * | 2019-05-31 | 2019-09-27 | 武汉大学 | A kind of Urban Park Green Space frastructure state Evaluation and Optimization |
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