The warehouse addresses used in the model as the dependent variable have been gathered
from surveys carried out in 2007 by the Istanbul Metropolitan Planning (IMP) operating
within the Istanbul Metropolitan Municipality (IMM). According to the 2007 IMP
records, the total number of warehouses was 7783 in Istanbul in 2007. However, this
number includes both open-air warehouses and warehouses with unclear addresses.
There are about 500 open-air warehouses registered in the IMP survey and are used for
wood, coal and scrap. This type of warehouses is not preferred for use by the real estate
sector. In the study, the warehouses that are used by the real estate sector are taken into
consideration. Therefore, open-air warehouses have not been included in the model in
order not to be misleading.