Trung Tran Vinh
Center for IT and GIS (DITAGIS), VietNam
This paper focuses on how GIS has been applied to establish, maintain, and analyse urban and land-use information to support the functions of local government in District 5, Hochiminh City (HCMC), Vietnam. The GIS model for District 5 is presented
As one of the central districts of Hochiminh City (HCMC), District 5 has a lot of schools, hospitals, and entertainment places. It has an area of 4.14 sq km. It is surrrounded by District 1 on the east side, District 6 on the west side, District 10 and 11 on the north side, and District 8 on the south side. The Tau Hu canal passing District 5 and seperating it with District 8 makes it more beautiful.
Its population is about 2,51,999 people and its population density is 60,869 people/sq km. There are 818 companies involved in various fields in District 5. It also gets over US$ 1 billion per year for income and contributes about US$ 20 million per year towards taxes.
With 15 wards, the District 5 governmental agencies encounter a lot of difficulty in urban management. The local government has increasingly seen the benefits of technology in executing many of their responsibilities. Computers have obviously changed the way most agencies do business. The processing, analytical and data storage capabilities of computers have given public agencies, that have invested in such systems, a great tool for accomplishing their duties. One example of how technology has changed the way governments do business is the development of Geographic Information Systems (GIS).
The ability of GIS to store, manage and manipulate large amounts of spatial data, provides urban managers with a powerful tool. GIS’s ability to link tabular, non-spatial data to locational information is likewise a powerful analytic capability. Many different facets of government use GIS technology. GIS also provides ways of viewing and analyzing data that was previously impossible or impractical. With the aid of a GIS, a local planning and community development office can track zoning and site design plans that help form and shape a city.
Up to now, as many local governments in Vietnam, the government of District 5 maintains land-use and housing information either on paper maps or in computerized cad-based databases. This issue causes data unsharing and uncommon problem which limits urban management authority of the local government.
Based on the urgent needs of the local government in managing urban activities especially land-use and housing management, the first GIS project for District 5 was implemented during the time from March, 2002 to June, 2003. Its name is District Geographic Information System or DIGIS. The two primary objectives of the DIGIS are:
- To design and implement the GIS database for land-use and housing within District 5. The objective helps to gather spatial and asspatial data stored on papers and in computerized database
- To establish some of the most important automatically functional procedures of the Department of Urban Management of District 5. They supports well for the local staff to exploit GIS data
The user of the system would be staff of District 5.