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Title
The 3rd ISPRS Workshop on Dynamic and Multi-Dimensional GIS & the 10th Annual Conference of CPGIS on Geoinformatics
Author
Chen, Jun

ISPRS, Vol.34, Part 2W2, “Dynamic and Multi-Dimensional GIS”, Bangkok, May 23-25, 2001
path between Beijing and other cities in each radiation region
have been calculated by means of GIS network analysis. Finally,
integrated database has been setup, which has both attribute
data and spatial data.
2.3 Potentiality Calculating
By applying model (3) and model (4), this step is to calculate
attraction and development potentiality or capacity of Beijing
based on the integrated database. The first step is to determine
the model parameters, such as mass of cities, mass weight factor
of cities, and friction coefficient of distance. The second is to
standardize all the data that will be used to calculate attraction
and development potentiality. Then, the comprehensive
attraction and potentiality of Beijing have been calculated based
on the parameters and standardized data.
2.4 Comprehensive Analyzing
The calculating result is just a series of data. What do they really
mean to Beijing? This step is to analyze the development
potentiality in quantity, quality, graphics, and document report.
And some comprehensive results were obtained.
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Fig. 1. Flow Chart of Research on Beijing Spatial Development
3.1 Development Background Analyzing
Map in Fig.2 shows the spatial development background of
Beijing. From the map, two characters are very obvious. One is
that the transportation system appears radiation pattern from
Beijing to all directions around. Beijing is the center of the
radiation system. The other is that cities around Beijing are not
well-distributed. If you draw a iine from southwest to northeast,
most of the cities located in southeast region with higher
administrative class, while less cities located in northwest region
with lower administrative class. At the same time, the
transportation system is very integrated in southeast region, while
it is not so good in northwest region. That kind of situation is the
result of past development, and will be the infrastructure for future
development.
Fig.2. Spatial Development Background of Beijing
3.2 Development Axes Determining
Based on the analysis of spatial development background, GIS
buffer analysis has been used to obtain the affection regions of
cities and transportation. The regions were defined by means of
administrative class of cities and transportation class of
transportation system (refer to table 1 ). Seven development axes
were defined according to spatial development background and
buffer analysis, such as east, southeast, south, southwest, west,
northwest, and northeast (refer to Fig.3).
Table 1. Affection Regions of Cities & Transportation
Affection Region of Cities
Affection Region of Transportation
Administrative
Affection
Transportation
Affection
Class
Region
Class
Region
Capital
15000
Electric Railway
15000
Municipality
12000
Double-line Railway
12000
Prefecture
10000
Single-line Railway
10000
City
8000
Super Highway
10000
County
6000
Main Highway
8000
3. CALCULATION PROCESS
Followed by the flow chart shown in Fig.1, the calculation process
was described one by one here, which includes analyzing
development background, determining development axes,
defining model parameters, selecting cities mass, measuring
transportation distance between Beijing and other cities, and
calculating potential development power of Beijing.