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2 2015

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The Importance of Istanbul Grand Airport (Iga) for Turkey and Its Influence on Widely Regional Air Traffic Around

Georgieva A. D., Düzgün M., Tanyaş M.

Research in Logistics & Production

2015

Vol. 5, No. 3

239--254

Air transportation can be defined as the movement of cargo and passengers by aircrafts, such as airplanes. It has grown to become a huge international industry, which plays a crucial role in the modern globalized world and is one of the main means of common-carrier traveling. In the last decade there has been a significant increase in the regional air traffic in Turkey. The rapid increase of aircraft and passenger movements have shown that although the Atatürk Airport is operating using almost full runway capacity, its current facilities and capacities are not sufficient. And although Sabiha Gokcen, the second Istanbul Airport, does not face immediate problems, there may be a need for new facilities and additional runways in the future. In order to deal with the existing capacity insufficiencies and other problems, the Turkish government started the construction of Istanbul's third airport. Scheduled for six-runway (additional 6 more) development, Istanbul Grand Airport is surrounded by many hopes and the high expectation of becoming the biggest and busiest airport terminal of the world and six continents. But is there really a need of a new airport in Istanbul? and what will its regional and international role be? The aim of this paper is to answer those questions, as well as to explore the opportunities and benefits related with the construction of the Grand Airport and the influences it will have on the regional air traffic around.

Analytical Model for Optimum Warehouse Dimensions

Karakis I., Baskak M., Tanyaş M.

Research in Logistics & Production

2015

Vol. 5, No. 3

255--269

Warehouses are essential components of any supply chain in terms of customer service and cost levels. Warehouses are one of the important players in the success or failure of businesses from not only the customer service levels perspective but also the cost perspective. Warehouses, as one of the important components of supply networks, should be continually improved from design and operation perspectives to increase the performance. All efforts and solutions regarding the performance improvement are important and complex. In other words, warehouses should operate effectively in terms of the costs and technical performance that are determined during the design phase of warehouses. There are a few studies in the literature regarding the calculations of the optimum dimensions of a warehouse along the x, y, and z directions. In this paper, an analytical model is proposed to achieve the optimum warehouse dimensions in terms of the number of stocking zones along each of three dimensional axes directions: the x-, y-, and z-axes as non-linear mathematical modelling is developed to ensure the optimality. The warehouse dimensions (length, width, and height under the rafter of the building) are then calculated according to the results obtained from the model to minimise the average travel time.