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Address-Based Geospatial Applications: A Case Study of Trabzon, Turkey
 Volkan Yildirm Karadeniz Technical University, Department of Geodesy and Photogrammetry Engineering, GISLab 61080 Trabzon-Turkey Phone: +90-462-3772794 Fax: +90-462-3280918 Email: yvolkan@ktu.edu.tr Web: www.gislab.ktu.edu.tr/volkan  Tahsin Yomralioglu Karadeniz Technical University, Department of Geodesy and Photogrammetry Engineering, GISLab 61080 Trabzon-Turkey Phone. +90-462-3772793 Fax:+90-462-3280918 Email: tahsin@ktu.edu.tr Web: www.jeodezi.ktu.edu.tr/tahsin Abstract Today, spatial information systems are used in many fields for various purposes in light of the technological improvements. Main purpose of these systems is to manage data in an effective way in order to reach an optimum decision. In this respect, Address-based Information Systems (AIS) is a vital for local governments to provide some valuable services to individuals. Because these systems can set up a very good relationship among the basic geospatial data layers for a city-work and link these geospatial data with corresponded objects directly. Thus, AIS minimize the time and financial losses for local governments and institutions using a fixed address data. Linkages among digital maps and related address inventories databases are the main components of AIS. Identification of all addresses and preliminary works such as developing a numerating system should be introduced first. Using some map layers such as buildings, roads, and land parcels and supply of linked address data to these layers is the most precisely task within AIS. Address-based information systems are important for spatial query and analyze. Because these systems are map-based, and they can be used effectively in many field such as urgent emergency analyze, address query, collection of the real estate tax, risk analyze etc. In this paper, to design and implementation of an AIS will be examined. 1. Introduction In the real world, addresses are the most commonly used and smallest unique identifier. They have often used as the primary link between individuals and locations. Address has a much more user-friendly quality than other identifiers such as property identification numbers (PIN’s). For example, a citizen who may wish to extract data from a Geographical Information Systems (GIS) would find it much more intuitive to be able to query a database using an address than by most other means [Metrogis, 1997]. Address serve two major functions: first is to emergency services. However, since the emergence of GIS, and the growing importance of Geographical Information (GI) in mainstream data processing, the address has also gained importance as a universal property identifier. Most recently, the use of address for the geographic location of properties or buildings has been recognized as a vital part of national and international information infrastructures. GIS has driven this demand because users need an explicit link between entities represented on a map and an identifier that allows the attributes of those entities to be drawn from other sources [Barr, 2002]. When considered technologic innovations, it seems that building an address inventory system with classical methods, updating, querying, and realizing required analysis are not possible. In this respect, there is a systematic approach. This is a good addressing system which has always been important for systematically recording personal or individual company information and effectively delivering products. In a society demanding for rapid information exchange, address serves also as a key to associate various governmental records to link data of varying summarized levels and to assist in strategic planning [Lilian et al, 2000]. 2. Importance of Address Data It is wisely accepted that the address issue is of great importance in the world of GI. Experience shows that the availability of full cover address data of a reasonable quality is often the key element that can “open up the world of GI”. A well-formed, public address system contributes to the physical infrastructure of a modern society, enabling ordinary people, postal services, rescue teams and utility companies etc. to navigate without coordinates. Proper address data can - likewise - contribute to the information infrastructure, pinpointing and labeling, in human language, all locations where people live, work, shop, entertain and educate themselves. Public address data is in many countries seen as a natural part of society’s core data, on which a more sophisticated spatial infrastructure can be built. In the geographical world, to make a distinction between reference systems based on coordinates and reference systems based on identifiers. Addresses belong in the last category, which means that for instance the address “34 Long Street, Trabzon” identifies a particular (more or less well-defined) location without use of geographical coordinates [Lind, 2000]. On the other hand direct and relating economical loses that derive from address data is very important in view of budged especially in developing countries like Turkey. For example; in 2001, address problems such as numerating system issues, incorrect addresses, address duplications and updating problems that appeared in Turkey cost approximately 60 Million US dollars. Over there, United States Postal Service (USPS) incurred 1.5 billion US dollars in expenses due to undeliverable mail because of incorrect mailing addresses. About 5.4 billion pieces of mail have been identified as undeliverable or 3% of mail volume in a given year.
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