CN102436634A - Measurement and calculation method for determining space boundary of city center area - Google Patents

Measurement and calculation method for determining space boundary of city center area Download PDF

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CN102436634A
CN102436634A CN2011103098402A CN201110309840A CN102436634A CN 102436634 A CN102436634 A CN 102436634A CN 2011103098402 A CN2011103098402 A CN 2011103098402A CN 201110309840 A CN201110309840 A CN 201110309840A CN 102436634 A CN102436634 A CN 102436634A
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index
building
public service
service facility
block
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杨俊宴
谭瑛
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Southeast University
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Abstract

The invention provides a measurement and calculation method for determining space boundary of a city center area. The method comprises the following steps: firstly determining measurement and calculation indexes which can reflect functional essence of the center area and can be objectively and accurately measured and calculated; then determining combined boundary values of public service facility indexes of the city center area according to the survey result of the current situation of typical cities in China; collecting raw data and drawing a spatial distribution map of the measurement and calculation indexes; and finally demarcating the space boundary of the city center area by means of repeated adjustment and check. By adopting fully rational investigation standard, statistical precision and calculation method, the measurement and calculation method provided by the invention has the advantages of obvious objectivity, measurability, high data accuracy and uniqueness; and meanwhile the confusion situation of the city center area and other city areas can be prevented so as to obtain a more accurate result.

Description

The measuring method of a kind of definite downtown area space boundary
Technical field
The present invention relates to the city planning technical field, be the measuring method of a kind of definite downtown area space boundary.
Background technology
After last century the fifties, the downtown area becomes one of the research problem in city planning field.Although people generally can be pointed out the approximate location (like liberation upright stone tablet area, Chongqing, Shenzhen Futian, Luohu area, area, Xin Jie Kou, Nanjing) of a downtown area by intuition; But in the forming of further investigation center with ground structure, space, build distribution, development law and aspects such as regional differences, overall size before; A clear and definite space boundary at first will be arranged; Various like this data just can find statistics and the basis of calculating, and the comparative analysis between the different times of between the different cities or same city just has practical significance.Therefore in the research of downtown area, at first be exactly clear and definite its spatial dimension, just can carry out functional activity, land used formation, space structure etc. and analyze research.
Since generation nineteen fifty, geographer, sociologist, economist, urban planner and other relevant specialities personage have carried out the research that relevant center quantizes, and wherein to border how to confirm the center, have used diverse ways in the different research.
The research document of at present the downtown area space boundary being confirmed is summarized the following three kinds of methods that mainly contain:
(1) hypothetical boundary method
This method is confirmed according to the border, downtown area of city manager, Urban Planner or the approval of local citizen psychology.The user thinks that the downtown area can not be by clearly definition, and the scope in this district only is fixed in people's the imagination in the city.With this theory is starting point, gives professional person and local resident with the down town chorography, such as the street pedestrian or shop waiter, inquires the downtown area boundary in everyone idea, and the result is on average promptly formed a border.
But the result that this method defines has stronger subjective desire from people's psychological cognition, lacks enough scientific basis, possibly have the result who separates more.
(2) method is confirmed in population distribution
This method is the unit with the block, utilizes the density of population to confirm the border of downtown area.With the size of population of each block area, make population Density Distribution map with this divided by this block; According to the densely populated theory in downtown area, set density of population separation, the block that is higher than this density then is the block, center, otherwise then is not.
This method is relatively objective, but the setting of density of population separation still is according to subjective judgement, the possibility that so same existence is separated more; Also possibly obscure mutually in addition with other dense population areas.
(3) building height is confirmed method
This method is the unit with the plot, utilizes building height to confirm the border of downtown area.Total floor area on the plot is obtained the average building height in this plot divided by the ground floor area in plot, make the building height distribution map with this; Set the building height separation, the block that is higher than this height is the block, center, otherwise then is not.
This method is relatively objective, but has two problems.One of which, the setting of building height separation still are according to subjective judgement; Its two, only consider building height and ignored building function, might also put the high-rise inhabitation of sheet block under in the scope of center.
More than being summarized as follows of three kinds of main method:
Figure BDA0000098301990000021
Summary of the invention
The problem that the present invention will solve is: definite method of existing downtown area space boundary; Exist subjectivity strong, the shortcoming that easy generation is obscured need provide the method for a kind of definite downtown area space boundary; Have the objectivity of data decimation, the science of computing method, the characteristics such as specific aim of space type; Make the downtown area space boundary confirm to have more rationality, accuracy is for center research provides science platform and prerequisite.
Technical scheme of the present invention is: the measuring method of a kind of definite downtown area space boundary; Confirm at first to reflect that the function quintessence of center also can be by the measurement index of objectively, accurately measuring and calculating; According to China's typical urban present situation finding, confirm the combination cut off value of downtown area public service facility index then; Then collect raw data, draw measuring and calculating index spatial distribution map in view of the above, through adjusting repeatedly and checking, delimit the space boundary of downtown area at last, may further comprise the steps:
1) confirm the measurement index of downtown area space boundary, the center has the attribute of two keys: 1. public services are the function quintessence of center; 2. the aggregation extent in public service facility space is the comprehensive yardstick of evaluating center district scope; Calculate the public service facility index on this basis; Be used to embody the whole capacity characteristic in certain block and center; Said public service facility index is according to the land use characteristic, to the index that quantitative analysis is carried out in the center, comprises public service facility altitude index PSFHI and public service facility dnesity index PSFII; Calculate to the land used with clear and definite spatial dimension respectively, these two indexes are respectively:
Figure BDA0000098301990000023
2) confirm the combination cut off value of downtown area public service facility index, set the combination cut off value of downtown area public service facility index: center scope exponential quantity (PSFII+PSFHI) CWith stone exponential quantity (PSFII+PSFHI) HC;
3) calculate the public service facility index of each block and draw public service facility exponential figure; With single block is the measuring and calculating unit; Calculate the public service facility altitude index PSFHI and the public service facility dnesity index PSFII of each single block; And be labeled in on the ground plane plot; According to the color of this block of numerical values recited definition, obtain the distribution map of public service facility altitude index PSFHI and public service facility dnesity index PSFII then;
4) define the center spatial dimension for the first time, public service facility altitude index PSFHI that is obtained by step 3) and the distribution plan of public service facility dnesity index PSFII tentatively mark the center spatial dimension, as the basis of adjustment;
5) confirm the downtown area space boundary through adjustment with checking,, to calculate the whole public service facility index of continuous block according to the above zone that marks off, and with make up cut off value (PSFII+PSFHI) CCompare, adjustment downtown area space boundary, the whole public service facility index up to continuous block constantly approaches and is not less than combination cut off value (PSFII+PSFHI) C
Step 3) is specially:
3.1) data aggregation and processing:
3.1.1) obtain complete, Vector Topographic Map data accurately;
3.1.2) the preliminary field of investigation border of confirming the downtown area on topomap, obtain being investigated the block;
3.1.3) collect by the building character data in the investigation block;
3.1.4) calculate by total land area of investigation block;
3.1.5) calculate by the floor area of building of each building monomer in the investigation block:
Building for each layer floor area of building equates calculates this construction bottom area A 1, the building storey n that multiply by this building more promptly obtains the floor area of building A:A=A of this building 1* n;
For the building that each layer floor area of building do not wait, layering calculates A n, cumulative addition obtains this building gross building area A:A=A then 1+ A 2+ A 3+ ... + A n
In floor area of building computation process, the hypogee area is not counted within the floor area of building measuring and calculating, in the block in building, if built the main building part, then equally according to its floor area of building of account form calculating of aforementioned building monomer;
3.2) calculating public service facility index:
3.2.1) calculate by the gross building area of investigation block, will be added up one by one by the floor area of building that monomer is respectively built in the investigation block, obtain being investigated the gross building area of block;
3.2.2) calculate by the public service facility floor area of building of investigation block, confirm by the common service facility in the investigation block, and its floor area of building is added up one by one, obtain being investigated the public service facility floor area of building of block;
3.3.3) calculate by the public service facility index of investigation block;
3.3) draw public service exponential distribution figure be set: be labeled in the public service facility index of each single block with on the ground plane plot; And according to the color of this block of numerical values recited definition; Color by being deep to the shallow size of representing each block public service facility altitude index and dnesity index respectively; Process public service facility height, dnesity index distribution plan, color by being deep to the shallow size of having represented each block public service facility altitude index and dnesity index respectively.
During step 5) adjustment downtown area space boundary, the significant public building maximum with area is the center of circle, evenly enlarges or dwindles adjustment back and the combination cut off value of setting (PSFII+PSFHI) CCompare, make the difference of PSFII and setting value 0%~0.4%, the difference of PSFHI and setting value is 0~0.04.
The present invention compared with prior art has following beneficial effect:
1, compare with in the past " hypothetical boundary method " from psychological cognition, the present invention adopts investigation standard, statistical precision and the computing method of the complete rational faculty, has tangible objectivity, accountability, data accuracy and uniqueness;
2, compare with in the past " population method ", " building height method ", data decimation of the present invention can reflect the function quintessence of downtown area more, thereby avoids occurring the situation obscured with other urban areas, makes the result more accurate.The present invention is on according to actual cities center land used, building function character investigation data basis; Be reflected on public service facility and the space clustering degree thereof on this objective law basis in the function quintessence that follows the downtown area; And set up public service facility index and combination cut off value in view of the above, thereby determine the space boundary of each center.The downtown area space boundary that the present invention confirms has science, thus the effect that really lays the foundation for the space research of center.
Description of drawings
Fig. 1 is a process flow diagram of the present invention.
Fig. 2 is No. 16 blocks, center, Xin Jie Kou, a Nanjing land used character investigation result.
Fig. 3 is that center, Xin Jie Kou, Nanjing public service facility altitude index PSFHI distributes.
Fig. 4 is that center, Xin Jie Kou, Nanjing public service facility dnesity index PSFII distributes.
Fig. 5 is defining for the first time of Xin Jie Kou, Nanjing center space boundary.
Fig. 6 is finally defining of Xin Jie Kou, Nanjing center space boundary.
Embodiment
Below will combine the spatial dimension of center, Nanjing to define case and accompanying drawing at length explains technical scheme of the present invention.
The method of definite downtown area according to the invention space boundary; Be used for confirming the space boundary of downtown area; It confirms at first to reflect that the function quintessence of center also can be by the measurement index of objectively, accurately measuring and calculating; According to China's typical urban present situation finding, confirm the combination cut off value of downtown area public service facility index then; Collect raw data, draw measuring and calculating index spatial distribution map in view of the above, thus the space boundary of delimiting the downtown area.
Specifically, as shown in Figure 1, the method for above-mentioned definite downtown area space boundary may further comprise the steps:
(1) confirms the measurement index of downtown area space boundary
The present invention is according to finding and theoretical derivation, and the downtown area has the attribute of two keys: 1. public services' (commerce and trade facility) are the function quintessences of center; 2. the aggregation extent in public service facility space is the comprehensive yardstick of evaluating center district scope.Propose public service facility index notion and computing method on this basis, can demonstrate fully the capacity characteristic of center.The public service facility index is the main index that the center is carried out quantitative analysis; According to the land use characteristic, proposition public service facility altitude index PSFHI (Public Service Facilities Height Index), public service facility dnesity index PSFII (Public Service Facilities Intensity Index) are respectively:
Figure BDA0000098301990000051
Figure BDA0000098301990000052
(2) confirm the combination cut off value of downtown area public service facility index
Downtown area public service facility index is divided into high index, middle index, low three kinds of grades of index; The present invention serves as the measuring and calculating unit with single block, continuous block successively; Said continuous block is two and the summation of plural single block of continuity spatially; According to China's typical urban research data and international experience numerical value; The downtown area is analyzed in the accumulative total ratio distribution value of each public service facility exponential size, is center scope exponential quantity (PSFII+PSFHI) with the combination cut off value of confirming block, non-central district, block, center, three kinds of downtown area, stone block public service facility index C, stone exponential quantity (PSFII+PSFHI) HC:
Center scope exponential quantity (PSFII+PSFHI) C=[(50)+(2)], promptly the cut off value of public service facility dnesity index PSFII is 50%, the cut off value of public service facility altitude index PSFHI is 2.Continuous block greater than this combinatorial index value is the center spatial dimension, is non-central district spatial dimension less than the continuous block of this index.
Stone exponential quantity (PSFII+PSFHI) HC=[(90)+(4)], promptly the cut off value of public service facility dnesity index PSFII is 90%, the cut off value of public service facility altitude index PSFHI is 4.Continuous block greater than this exponential quantity is center stone (Hard Core) scope, between (PSFII+PSFHI) C, (PSFII+PSFHI) HCBetween continuous block be center nuclear edge (Core Fringe) scope.
(3) calculate the public service facility index of each block and draw public service facility exponential distribution figure
With single block is the measuring and calculating unit; Calculate the public service facility altitude index PSFHI and the public service facility dnesity index PSFII of each single block; And be labeled in on the ground plane plot; According to the color of this block of numerical values recited definition, obtain the distribution plan of public service facility altitude index PSFHI and public service facility dnesity index PSFII then;
3.1) data aggregation and processing
3.1.1) obtain complete, Vector Topographic Map data accurately.The space vector topomap of China downtown area can be cooperated by Bureau of Urban Planning to be provided, and perhaps Bureau of Surveying and Mapping buys the electronics topomap voluntarily to the city.Regional planning agency and Nanjing mapping designing institute buys and obtains required electronics vector file (DWG form) graphic documentation that defines of this downtown area, Xin Jie Kou, Nanjing space boundary from Nanjing.
3.1.2) tentatively mark the field of investigation border of downtown area, confirm by the investigation block.According to citizen or Research Analyst's psychological cognition, tentatively on topomap, mark the downtown area space boundary as field of investigation border.This border scientific unimportant because initial as research work just in each step of back, can constantly be revised, thereby obtained border accurately.
3.1.3) collection building character data.Go on foot the field of investigation border of the downtown area of marking according to the Vector Topographic Map and second of first step acquisition; Investigate on the spot, one by one the plot, investigate and write down its building character (according to the C class in " classification of 2.0.5 bar urban land and code name " in " Standard for classification of urban land and for planning of constructional land GB137-90 " with building on the ground), building storey n by a building.
3.1.4) calculate by total land area of investigation block.The field of investigation border of the downtown area that second step of foundation marks, utilization AUTO CAD computed in software goes out the closed wire frame area by the PLINE of investigation block on the space vector topomap, is promptly investigated total land area of block.
3.1.5), calculate by the floor area of building of each building monomer in the investigation block.
For the building that each layer floor area of building equates, utilization AUTO CAD computed in software goes out to build the closed wire frame area A of bottom surface PLINE 1, i.e. this construction bottom area, the building storey n that multiply by this building more promptly obtains the floor area of building A of this building, i.e. A=A 1* n.
The building that does not wait for each layer floor area of building, but then layering calculates A n, cumulative addition obtains this building gross building area A, i.e. A=A then 1+ A 2+ A 3+ ... + A n
For the public service facility floor area of building, the building function that then combines reconnaissance trip to obtain is selected public service facility building wherein, calculates with same computing method then.
In floor area of building computation process, 2 points below noting: at first, the hypogee area is not counted within the floor area of building measuring and calculating of this case.Secondly, in the block in building, if built the main building part, then equally according to its floor area of building of account form calculating that uses building.
3.2) calculating public service facility index
3.2.1), calculate by the gross building area of investigation block.The floor area of building of respectively building monomer that calculates is added up one by one, obtain being investigated the gross building area of block.
3.2.2), calculate by the public service facility floor area of building of investigation block.According to the building function data of collecting, select public service facility, and its floor area of building is added up one by one, obtain being investigated the public service facility floor area of building of block.
3.2.3), calculate by the public service facility index of investigation block.Computing method according to the measurement index of the downtown area space boundary of confirming in (1) step; The corresponding data that substitution obtained in (4) step calculates by public service facility altitude index PSFHI, the public service facility dnesity index PSFII of investigation block respectively.
Choosing No. 16 blocks, center, Xin Jie Kou, Nanjing is case, and Fig. 2 is No. 16 blocks, center, Xin Jie Kou, a Nanjing land used character investigation result.Result of calculation is seen table 1.
Table 1: No. 16 block data statisticss in Xin Jie Kou, Nanjing and Index for Calculation
Figure BDA0000098301990000071
3.3) drafting public service facility exponential distribution figure
Be labeled in the public service facility index of each single block with on the ground plane plot, and define the color of this block according to numerical values recited.Color by being deep to the shallow size of having represented each block public service facility altitude index and dnesity index respectively, the foundation of delimiting as present situation center, city scope.On this basis, process public service facility height, dnesity index distribution plan, color by being deep to the shallow size of having represented each block public service facility altitude index and dnesity index respectively.From Fig. 3,4, can clearly see: with the Xin Jie Kou big disk is the axle center; Zhongshan Road, middle south of the mountains road, East Zhongshan Road are the highest blocks of public service facility exponential quantity with the grand cross area that the Hanzhong road intersects; Outwards extend by the Xin Jie Kou; The public service facility exponential sum dnesity index of each block decays gradually, does not successively decrease but is the decay of uneven great-jump-forward but this attenuation process is equilibrium.It is to be noted; The index here is not the center public service facility index on the final meaning; Only reflected each single block business function aggregation extent, the foundation as present situation center, city scope delimited lays the foundation thereby divide the center scope for next step.
(4) define downtown area purpose spatial dimension for the first time
On the basis of each single block public service facility exponential distribution figure, the distribution of superimposed significant public building is at first chosen all public service facility indexes more than or equal to center scope exponential quantity (PSFII+PSFHI) CSingle block, the single block that all comprise significant public building; In the summation of these blocks, sketch the contours of continuous some blocks, space, as the purpose scope boundary line of this downtown area.
(5) confirm the downtown area space boundary through adjustment and check
The first, in purpose scope boundary line, center, calculate PSFHI and PSFII index whole in this center purpose scope, the center scope here is meant center purpose scope.With the commercial floor area of building of each block, gross building area, total land area adds up respectively, calculates PSFHI and PSFII index whole in this center scope, and with center scope exponential quantity (PSFII+PSFHI) CContrast.Usually can there be certain gap, if whole index is greater than center scope exponential quantity (PSFII+PSFHI) C, explain that then the purpose scope of center is less than normal; If instead whole index is less than center scope exponential quantity (PSFII+PSFHI) C, explain that then the purpose scope of center is bigger than normal.Because what calculate is the public service facility index of continuous block, therefore single with regard to the public service facility index of each single block in the scope of center self, the meeting that has is greater than center scope exponential quantity (PSFII+PSFHI) C, the meeting that has is less than center scope exponential quantity (PSFII+PSFHI) C
In the spatial dimension deterministic process of center, Xin Jie Kou, Nanjing, in conjunction with public service facility exponential distribution figure, like Fig. 3, shown in Figure 4, and the spatial dimension of psychological cognition, defining the center scope for the first time is 1.47 square kilometres, like Fig. 5.Calculate through overall then, PSFHI=2.15, PSFII=0.59, public service facility height, dnesity index are all greater than center scope exponential quantity (PSFII+PSFHI) C, that is to say that the center scope that defines for the first time is less than normal, only drawn public service facility height, core block that dnesity index is bigger, peripheral public service facility height, the less block of dnesity index are not put under wherein
The second, according to whole index and center scope exponential quantity (PSFII+PSFHI) CBetween gap, the adjustment spatial dimension.If whole index is bigger than normal, then suitably enlarge its spatial dimension; If whole index is less than normal, then suitably dwindle its spatial dimension.Be in course of adjustment, the significant public building maximum with area is the center of circle, evenly enlarges or dwindles.
The 3rd, repeat the first step.Still do not satisfy in the center scope of statistics once more (PSFII+PSFHI) CCombined value, can continue setting range.Through several times adjustment and check, progressively make public service facility index whole in the scope of center approach (PSFII+PSFHI) gradually C, according to the center scope exponential quantity of setting (PSFII+PSFHI) C=[(50)+(2)] make PSFII between 50.0%-50.4%, are 50.0% after rounding up, and PSFHI is 2.0 after rounding up between 2.00 and 2.04.The final spatial dimension border of confirming the downtown area.
In the space boundary of center, Xin Jie Kou, Nanjing is confirmed; Because the border of just measuring, center is less than normal; We enlarge its scope, and carry out the statistical computation of PSFHI and PSFII again, and the center scope of statistics is bigger than normal once more; We continue setting range, and progressively adjustment makes the public service facility index in the scope of center approach (PSFII+PSFHI) gradually C, through 4 to 5 times adjustment with connect nuclear, we have confirmed the present situation scope of center, Nanjing, like Fig. 6.

Claims (3)

1. the measuring method of definite downtown area space boundary; It is characterized in that confirming at first to reflect that the function quintessence of center also can be by the measurement index of objectively, accurately measuring and calculating; According to China's typical urban present situation finding, confirm the combination cut off value of downtown area public service facility index then; Then collect raw data, draw measuring and calculating index spatial distribution map in view of the above, through adjusting repeatedly and checking, delimit the space boundary of downtown area at last, may further comprise the steps:
1) confirm the measurement index of downtown area space boundary, the center has the attribute of two keys: 1. public services are the function quintessence of center; 2. the aggregation extent in public service facility space is the comprehensive yardstick of evaluating center district scope; Calculate the public service facility index on this basis; Be used to embody the whole capacity characteristic in certain block and center; Said public service facility index is according to the land use characteristic, to the index that quantitative analysis is carried out in the center, comprises public service facility altitude index PSFHI and public service facility dnesity index PSFII; Calculate to the land used with clear and definite spatial dimension respectively, these two indexes are respectively:
Figure 610745DEST_PATH_IMAGE002
2) confirm the combination cut off value of downtown area public service facility index, set the combination cut off value of downtown area public service facility index: center scope exponential quantity ( PSFII+ PSFHI) CWith the stone exponential quantity ( PSFII+ PSFHI) HC
3) calculate the public service facility index of each block and draw public service facility exponential figure; With single block is the measuring and calculating unit; Calculate the public service facility altitude index PSFHI and the public service facility dnesity index PSFII of each single block; And be labeled in on the ground plane plot; According to the color of this block of numerical values recited definition, obtain the distribution map of public service facility altitude index PSFHI and public service facility dnesity index PSFII then;
4) define the center spatial dimension for the first time, public service facility altitude index PSFHI that is obtained by step 3) and the distribution plan of public service facility dnesity index PSFII tentatively mark the center spatial dimension, as the basis of adjustment;
5) confirm the downtown area space boundary through adjustment with checking,, to calculate the whole public service facility index of continuous block according to the above zone that marks off, and with make up cut off value ( PSFII+ PSFHI) CCompare, adjustment downtown area space boundary, whole public service facility index up to continuous block constantly approach and be not less than the combination cut off value ( PSFII+ PSFHI) C
2. the measuring method of a kind of definite downtown area according to claim 1 space boundary is characterized in that step 3) is specially:
3.1) data aggregation and processing:
3.1.1) obtain complete, Vector Topographic Map data accurately;
3.1.2) the preliminary field of investigation border of confirming the downtown area on topomap, obtain being investigated the block;
3.1.3) collect by the building character data in the investigation block;
3.1.4) calculate by total land area of investigation block;
3.1.5) calculate by the floor area of building of each building monomer in the investigation block:
Building for each layer floor area of building equates calculates this construction bottom area A 1 , multiply by the building storey of this building again nPromptly obtain the floor area of building of this building A: A= A 1* n
For the building that each layer floor area of building do not wait, layering calculates A n , cumulative addition obtains this building gross building area then A: A= A 1 + A 2 + A 3 + ... + A n
In floor area of building computation process, the hypogee area is not counted within the floor area of building measuring and calculating, in the block in building, if built the main building part, then equally according to its floor area of building of account form calculating of aforementioned building monomer;
3.2) calculating public service facility index:
3.2.1) calculate by the gross building area of investigation block, will be added up one by one by the floor area of building that monomer is respectively built in the investigation block, obtain being investigated the gross building area of block;
3.2.2) calculate by the public service facility floor area of building of investigation block, confirm by the common service facility in the investigation block, and its floor area of building is added up one by one, obtain being investigated the public service facility floor area of building of block;
3.3.3) calculate by the public service facility index of investigation block;
3.3) draw public service exponential distribution figure be set: be labeled in the public service facility index of each single block with on the ground plane plot; And according to the color of this block of numerical values recited definition; Color by being deep to the shallow size of representing each block public service facility altitude index and dnesity index respectively; Process public service facility height, dnesity index distribution plan, color by being deep to the shallow size of having represented each block public service facility altitude index and dnesity index respectively.
3. the measuring method of a kind of definite downtown area according to claim 1 and 2 space boundary; When it is characterized in that step 5) adjustment downtown area space boundary; The significant public building maximum with area is the center of circle, evenly enlarge or dwindle, adjustment back and the combination cut off value of setting ( PSFII+ PSFHI) CCompare, make the difference of PSFII and setting value 0%~0.4%, the difference of PSFHI and setting value is 0~0.04.
CN2011103098402A 2011-10-13 2011-10-13 Measurement and calculation method for determining space boundary of city center area Pending CN102436634A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103337035A (en) * 2013-03-19 2013-10-02 东南大学 Method for determining site selection of urban center system based on quantitative evaluation
CN104679951A (en) * 2015-02-11 2015-06-03 唐子来 City block function zoning method based on multi-factor spatial clustering

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103337035A (en) * 2013-03-19 2013-10-02 东南大学 Method for determining site selection of urban center system based on quantitative evaluation
CN104679951A (en) * 2015-02-11 2015-06-03 唐子来 City block function zoning method based on multi-factor spatial clustering
CN104679951B (en) * 2015-02-11 2018-08-21 唐子来 A kind of Urban Streets function zoning method of multifactor space clustering

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