New Technology for a New Century
A STUDY ON THE DEVELOPMENT OF URBAN LAND USE INFORMATION SYSTEM FOR SUSTAINABLE LAND MANAGEMENT
Prof. Junehwan KOH, Korea
Key words: GIS, Sustainable Urban Management, Land Use Information System, and Land Information System.
Cities try to have more effective information systems which can manage themselves more effectively. Especially in the field of land management, to manage urban land in a sustainable way is connected to understand the present situation of land use comprehensively. We usually use the areal photographs or remote sensing data to know the land use changes. It is very useful for low density cities that are developed horizontally dispersed. But in the case of the highly densed urban area, it will not be useful to understand the land use pattern. It will be possible by the development of parcel based land use information system which consisted by parcels, buildings and their users. Seoul, which has more than 10 million people within the 600 square km, has different land use patterns with other small cities.
Seoul's land use patterns are characterized by highly densed land
use pattern, vertical land use differentiation and mixed land use.
They need more accurate and scientific information for efficient
management and planning. They cover all kind of data, such as
socio-economic, land use, traffic and environmental information. Land
use is the presentation of human activities on the land. So, land use
information is very important to manage the city efficiently. We think
that they can be integrated with land use information system. They
make difficult to understand land use pattern by existing land use
information, such as parcel's land category and building's use
classification. The purpose of this paper is to suggest the land use
information system model for Seoul which can integrate land use
information systematically. In this study, existing research results
of Korea and abroad for land use information and land use information
system are widely reviewed. Also present situations of production and
maintenance about land use information are analyzed to make clear the
problems and improvement suggestions. Finally, Land use information
system model for Seoul which is organized by parcels, buildings and
users, are suggested and tested by the prototype development.
According to the study, Land use information system has the
subsystems, such as collection, storage, analysis and output. The
basic components (entity) are parcels, buildings and users. They are
already computerized by file type in our country, but it has some
problems to utilize in association with others. In the case of map
data, the topographic map which has the boundary of building and the
cadastral map which has the boundary of parcel are difficult to be
overlayed as an one base map. In the case of attribute data, we have
to prepare schemes that data can be utilized commonly. It needs the
standardization of land use classification and the quantification. The
construction of comprehensive land use information system will be
possible by the land use census and the building of parcel based
information system. As short-term policy recommendations, the
followings are suggested; 1) continuous research and applications of
land use information system and the arrangement of researchers for
that purposes, 2) preparation of the system which existing data can be
utilized by others users (computer network system and standardization
of codes will be needed), 3) improvements of information utilization
control (preparation of laws or codes for information openness, the
utilization of data by internet is essential). As long-term policy
recommendations, the followings are suggested;
The funds for census will come from the subsidy of project which need land use information, such as urban planning, urban design and traffic impact assessment, etc. Finally, with these strategies, parcel based land use information system which contains users of buildings as the major components, will be operationalized and contributed to the efficient and sustainable land management at highly densely developed urban area, such as Seoul.
Prof. Junehwan Koh
24 March 2001
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