Earth and Space Sciences Institute

In this study, liquefaction potential risk is investigated according to the 0.4 g ground acceleration, which may be caused by a proposed earthquake magnitude of 6.4 on Richter scale in Eskisehir City Center. Factors of safety against liquefaction are calculated from Standard Penetration Test (SPT) values for 64 borehole locations. Calculated factors of safety are processed by ordinary kriging, which is one of the well known methodologies of geostatistical methods, for estimation of the liquefaction values of locations that have no data. Estimated values are classified depending on liquefaction potential as risky, potential, and no risk, therefore preparing liquefaction potential risk maps. Due to liquefaction potential risk map, conglomerate and alluvial regions beside the Porsuk River, which passes through the city center, are the risky zones. Hilly sides in the south laid on schist lithology have no risk, and the contact zones between these lithologies are potential risk on liquef...

Uluslararası afet veri tabanına göre (United Nations Office for Disaster Risk Reduction-"UNISDR" / the Emergency Events Database-"EM-DAT") 2018 yılı içinde doğa kaynaklı afetlerden etkilenen kişi sayısı 61,772,617 kişi olarak raporlanmıştır. Dünya Sağlık Örgütü (World Health Organization-WHO) (2011) verilerine göre, dünya nüfusunun yaklaşık %15'i engelli bireylerden oluşmaktadır. Afet ve acil durum olaylarında, zarar görme olasılıkları diğer bireylere kıyasla çok daha yüksek olmasına karşın, risk azaltma çalışmalarında göz ardı edilen engelli bireyler için uluslararası sözleşmelere uygun çözümlerin geliştirilmesi son derece önemlidir. Afet yönetimi çalışmalarında afetten etkilenen alanın ve nüfusun hızlı bir şekilde belirlenmesine yönelik çalışmalar kriz yönetimi evresinde önem taşımaktadır. Ayrıca olası bir afet öncesinde tehlike alanlarının belirlenmesi, risklerin ve afetlerden etkilenebilecek nüfusun ortaya konması, afetin boyutunu azaltmaya yönelik zarar azaltma çalışmalarının ilk aşaması olarak değerlendirilebilir. Bu çalışmada, afetlerde özel gereksinimli bireylere erişme konusu coğrafi bilgi sistemleri kullanılarak değerlendirilmiştir. Eskişehir il örneğinde, engelli bireylerin yaşadığı adresler coğrafi konum bilgisi (enlem, boylam) ile ilişkilendirilmiş ve diğer öznitelik bilgileri ile birlikte veri tabanına aktarılmıştır. Bu verinin saklanması, sorgulanması ve analiz edilmesi aşamalarında Coğrafi Bilgi Sistemi (CBS) çözüm tekniklerinden yararlanılmıştır. CBS, ağ analiz yöntemleri kullanılarak zihinsel engelli, bedensel engelli, işitme engelli ve görme engelli bireylerin acil toplanma merkezlerine en hızlı erişebilecekleri ulaşım güzergahları belirlenmiştir. Bu kapsamda ağ analiz yöntemlerinden hizmet alanı yöntemiyle yol ağı üzerinde belirli zaman dilimleri içerisinde afet toplanma merkezlerine ulaşılabilirlik alanları oluşturulmuş ve bu alanlar içerisindeki engelli bireylerin konumları ve sayıları tespit edilmiştir. Elde edilen sonuçlar sayısal haritalar oluşturularak yorumlanmıştır. Anahtar Kelimeler: Engelli Bireyler, mekansal veri, erişim, coğrafi bilgi sistemi. The international disasters database (United Nations Office for Disaster Risk Reduction "UNISDR"/the Emergency Events Database "EM-DAT") estimated the number of people affected by natural disasters in 2018 to be 61,772,617. According to (1), approximately 15% of the global population comprises people with disabilities. Despite being the most vulnerable group during emergencies and disasters, people with disabilities tend to be ignored in risk mitigation efforts, making it vital that solutions be developed for them within the framework of international conventions. Efforts to identify the area and population affected during a disaster are important aspects of disaster management. Prior identification of danger zones and segments of society who would be at the greatest risk in the event of a disaster could be considered as the first step in damage mitigation and disaster impact reduction. This study investigated the issue of accessibility among individuals with special needs during a disaster using a geographic information system (GIS)-based approach. In this study, addresses of individuals with disabilities in Eskişehir were collected along with their geographic location coordinates (latitude and longitude), and the data were compiled into a database along with other attributes. GIS analysis techniques were used to store, query, and analyze the data. Using GIS and network analysis methods, the fastest routes to emergency assembly points were identified for individuals with intellectual, physical, hearing, or visual disabilities. The service area network analysis method was used to establish accessible routes on the road network that would allow the focus population group to reach disaster assembly points in the shortest time. The number of individuals with disabilities in these areas and their locations were identified to aid the analysis. Digital maps were created to interpret the results.

Man has mostly preferred to live in communes and settle in particular areas to survive. Together with the growth of population and immigration, these settlement areas have developed into cities in time. Depending on the rapid growth in science and technology, the economical, cultural and social structures of the cities and so their physical appearances change continuously. Within this rapid and non-ecological structural change and growth, the necessity of open green areas is usually ignored. In fact, open green areas have significant positive effects on man's psychological renewal, as well as social and cultural development. From this point of view, open green areas are one of the most important spaces in the urban environment that should be considered during the S trategic Environmental Assessment (S EA) process of urban planning. In this study, Geographic Information S ystems (GIS) and Remote S ensing (RS) techniques were used for determining suitable lands for open green area...

Günümüzde yaşanan yoğun rekabet, teknolojik gelişim, yeni iş modellerinin oluşturulması diğer sektörlerde olduğu gibi havayolu sektöründe de kendini hissettirmektedir. Bu bağlamda her yıl milyarlarca yolcunun taşındığı havayolu taşımacılığında müşterilerin istek ve beklentilerini çözümlemek, müşterilerin demografik bilgilerini ve tercihlerini, havayolu işletmelerinin anlaması ve yeni teknolojileri pazarlama stratejileri ile birleştirmeleri gerekmektedir. Bu kapsamda etkinlik ve verimliliği sağlayarak, zaman ve maliyet azaltıcı yöntemlerden biri olan Coğrafi Bilgi Sistemleri, hem konumsal ve hemde konumsal olmayan verilerin kullanılması ile müşteri analizleri yapabilmekte ve haritalar aracılığıyla görselleştirme sağlayarak, verilerin hızlı bir şekilde yorumlanmasını ve böylece pazarlama stratejilerini geliştirerek karar alınmasını kolaylaştırmaktadır. Bunun yanı sıra müşterileri yoğunluklarının nerede olduğunu, ne satın aldıklarını, ne kadar uzağa seyahat etmeye istekli oldukları gibi ve daha pek çok satın alma davranışını anlamayı olanaklı kılarak zaman, para ve kaynak tasarrufu sağlamaktadır. Bu çalışmada, tatil amaçlı seyahat eden havayolu yolcularının profil ve tercihlerinin coğrafi bilgi sistemleri aracılığıyla analiz edilerek, ortaya konulması amaçlanmıştır.

Geomarketing, a new way of knowledge-based marketing, integrates geographic analysis, reasoning, and technology for the improvement of the business judgmental decision. Geomarketing can help you find out who your best customers are and apply geographic analysis techniques to discover where to find more of them. Solving almost any sales and marketing challenge start with knowing who your customer is. Therefore; private hospitals, as commercial businesses with huge investments, also need to find out their best customers and discover where to find more of them. In other words, private hospitals also need customer profiling with geomarketing tools. In this context, the aim of this study is to analyze spatial density, based on the demographic characteristics of customers of private hospitals. A small private hospital, located in Eskisehir city center was chosen for this study. In one year period, the address locations, frequency of visits, clinic choices and neighborhood concentrations of the patients, due to the demographic characteristics, were examined using Geographic Information Systems (GIS) from the hospital patient records.

Businesses today face great competition in their operations, making it necessary for them to adopt a “customer-oriented” approach. In this competitive environment, where customers are more valuable, enterprises accrue great advantages from an understanding of the characteristics of the target audience in all dimensions. This is where the importance of geo-marketing and demographic segmentation for enterprises emerges. This study performed a geo-demographic segmentation of the urban neighbourhoods of Eskişehir province and sought to determine the characteristics of the people living in these neighbourhoods at the household level. The Groups created using the SPSS package program as well as Principal Components Analysis (PCA) and Hierarchical Clustering Analysis were then mapped on the GIS platform as urban neighbourhoods.

The increasing globalization, rapidly advancing technology and the changes in social life today force the airline industry to continuously restructure and improve itself. As the importance of relations grows, it is crucial to know the exact status of customer dema nd and expectations so as to better understand their purchasing activities in air transport that involves a win-win situation and an increasing rate of interaction between customers and businesses. With fierce competition, air transport requires airline businesses to benefit from advancing technology and incorporate their marketing strategies into these technologies so that they can survive and remain profitabl e by keeping a competitive edge. As such, by employing Geographical Information Systems, the present study aims to analyze the profiles and preferences of German leisure air passengers and present the spatially-based findings. The results of the study are expected to contribute to airline businesses, tourism companies and the academic literature.