Osmangazi bridge, which combines Yalova and Kocaeli provinces, is known to be one of the important projects for transportation facilities due to its key role of condensing the travel durations between many cities such as Istanbul and Izmir. On the other hand, as it is mentioned in various studies, it is essential to determine impacts of such projects on environment since they reach to considerably extents. This study aims to provide an overlook to LULC changes occurred in last decade. Landsat Thematic Mapper (TM) and Operational Land Imager (OLI) imageries of 2009 (TM), 2013 (OLI) and 2016 (OLI) were used in the study. Along with six-band original images, different image enhancement techniques such as principal components analysis were applied to obtain new images. All images were exposed to supervised classification to obtain LULC maps consisted of 8 classes. Neighborhood analysis was applied to overcome salt and pepper effects. Accuracies of LULC maps were determined by controlling equalized random points through Google Earth application. The results showed that areas (ha, %) of roads, industrial areas and settlements were increased while agriculture, grazing land and forest areas were decreased during the complete time interval. The initial changes (2009-2013) have been considered to be arisen from ongoing natural tendencies whereas the final-term changes have impacted by bridge construction. Future study will be focused on the detailed changes and change simulations using high resolution images and ancillary data.
Anahtar Kelimeler: Landsat, LULC, Supervised classification, Osmangazi bridge