SUMMARY

Global Positioning System (GPS) motivated the new technologies to take place in positioning techniques by offering certain accuracy related with the measurement strategy. The accuracies that can be achieved are limited with the type of measurement. By using a single GPS receiver man can achieve a measurement accuracy of between 10 and 15 meters, but if two or more receivers are used the accuracy problem is solved. However the only problem is not the accuracy there are also other problems like cost, experienced crew, coverage and more. The problems mentioned above made people to find new and permanent solutions one of which is the Continuously Operating Reference Station (CORS). CORS has a wide range of availability in various topics, because of that many developed countries have already established their national CORS networks and even begin condensing. Turkey is one of these developed countries planning to establish a national CORS network. In order to establish the mentioned CORS network the preliminary works should be carried out. In this paper the studies being carried out for this subject will be explained and furthermore the steps of establishment, the advantages that the CORS will bring to Turkey