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https://hdl.handle.net/20.500.12511/4421
Proceeding Collection2024-03-29T06:13:12ZA decision support mechanism for LEED building design & construction: Transit stations
https://hdl.handle.net/20.500.12511/8151
A decision support mechanism for LEED building design & construction: Transit stations
Akarcalı, G. Z.; Cenani, Şehnaz; Çağdaş, Gülen
Leadership in Energy and Environment Design (LEED) is one of the most known and widely preferred green building certificate that is provided by the United States Green Building Council (USGBC). Among the several certificate types of LEED, the most recent one is LEED Building Design and Construction: Transit Stations (LEED BD+C: TS), published in order to meet the requirements of transit stations with the valuable input obtained from the metro corporations in India and China. LEED BD+C: TS leads to a complicated decision process that requires multidisciplinary collaboration during decision making process, technical expertise and experience of the decision makers, and investment assessment. In this paper, a decision support mechanism is suggested for such decisionmaking process. This decision support mechanism utilizes Analytic Hierarchy Process Ranking method, aiming to provide an insight for the decision makers to choose the most efficient LEED credit alternatives in terms of LEED Certification achievement. The proposed decision support system will be tested on a metro station construction in Istanbul Turkey that the first Author has professional experience on, as a case study.
2020-01-01T00:00:00ZDeprem kaynaklı tsunami durumunda tahliye için karar destek sistemi önerisi: Kadıköy Caferağa ve Osmanağa mahallelerinde vaka analizi
https://hdl.handle.net/20.500.12511/8142
Deprem kaynaklı tsunami durumunda tahliye için karar destek sistemi önerisi: Kadıköy Caferağa ve Osmanağa mahallelerinde vaka analizi
Efendioğlu, Gizem; Cenani, Şehnaz
Uzun bir deprem geçmişine sahip İstanbul, Kuzey Anadolu Fay Hattına yakınlığı dolayısıyla deprem açısından riskli bir konumda yer almaktadır. Yaşanan son depremden itibaren geçirilen süreç içerisinde, İstanbul yakınında bulunan fay hatlarında bir enerji sıkışması olabileceği belirtilmektedir. Bu sıkışma sebebiyle önümüzdeki 30 yıl içerisinde İstanbul’da 7.0 ila 7.4 şiddetleri arasında gerçekleşebilecek büyük bir deprem öngörülmektedir. Depremin neden olabileceği can kayıplarının yanı sıra İstanbul, kıyı şeritlerinde yaşanabilecek bir tsunami tehdidi ile de karşı karşıyadır. Olası bir deprem durumunda tsunamiye karşı 3 dakika içerisinde önlem alınması gerektiği belirtilmektedir. Literatürde İstanbul özelinde yapılan çalışmalarda tsunaminin kıyı şeridine ulaşma süresi 8 dakika olarak belirlenmiştir. Bu nedenle depremin ardından 8 dakikalık süre içerisinde hızlıca kıyı şeridi tahliye edilmelidir. Karar Destek Sistemleri (KDS), afet durumlarında hızlı ve isabetli kararlar alınmasını sağlayan bilgisayar destekli sistemlerdir. Bu sistemler dünyanın çeşitli bölgelerinde gelişebilecek afet durumlarına karşı hazırlıklar için kullanılmaktadır. Bu çalışma, İstanbul’da deprem kaynaklı tsunami durumlarında kullanılacak tahliye rotalarını belirleyen bir KDS önerisi sunmayı amaçlamaktadır. Çalışma, pilot bölge olarak yarımada konumunda bulunan Kadıköy Caferağa ve Osmanağa Mahallelerini incelemektedir. Önerilen sistem, anlama, tasarım ve karar verme aşamaları olmak üzere üç aşamada geliştirilmiştir. Anlama aşaması, sorunun analiz edilmesi ve yapılandırılmasını; tasarım aşaması, alternatif çözümler üretilmesini ve son olarak karar aşaması, karar verme durumunu tanımlamaktadır. Bu bağlamda anlama aşamasında pilot bölge analiz edilerek işlevsel, demografik ve coğrafi özellikleri açısından değerlendirilmiştir. Oluşturulan DEM (Digital Elevation Model) haritası ile tsunami açısından riskli bölgeler belirlenmiştir. Riskli alanlar sonraki aşamada çıkış noktaları için tanımlanırken, varış noktaları için bölgedeki hastane ve toplanma alanları belirlenmiştir. Tasarım aşamasında riskli bölgelerden varış noktalarına tahliye için rotalar geliştirilmiştir. Rotalar oluşturulurken, daha isabetli hesaplamalar yapılabilmesi için gerçek zamanlı trafik yoğunluğu analizleri sisteme aktarılmıştır. Daha güvenli rotaların belirlenebilmesi için ise anlama aşamasında belirlenen tahliye aşamasında riskli olabilecek bölgeler senaryolara dâhil edilmiştir. Araç ile ulaşım ve araçlara erişim olmadığı durumlarda yürüyüş rotaları için iki farklı senaryo oluşturulmuştur. Son olarak karar aşamasında, deprem kaynaklı tsunami durumlarında tahliye rotalarının oluşturulmasını sağlayacak bir Karar Destek Sistemi önerilmiştir.; Istanbul has a long history of earthquakes, since it is close to the North Anatolian Fault. Istanbul is predicted to have a large earthquake of magnitude between 7.0 to 7.4 in the next 30 years. It is stated that the reason for this may be an energy compression in the faults for the elapsed time. Besides the earthquake, Istanbul also has the threat of an earthquake-induced tsunami that may occur along the coastline. After an earthquake, emergency precautions should be taken in 3 minutes against the tsunami. In the studies conducted about Istanbul, after an earthquake, the time for the tsunami to reach the coastline was determined as 8 minutes. For this reason, the evacuation from the coastline should start within 8 minutes after the earthquake. Decision Support Systems (DSS) are computer-aided decision-making systems that enable fast and accurate decisions in disasters and emergency situations. Generally, these systems are used for preparations against disasters. This study aims to present a DSS proposal that determines the evacuation routes to be used in earthquake-induced tsunamis in Istanbul. This study examines Kadıköy Caferağa and Osmanağa Neighborhoods as case study. We developed the system in three phases: intelligence, design and choice. The intelligence phase involves analyzing and structuring the problem; The design phase defines the generation of alternative solutions and finally the choice defines the decision-making situation. In this context, during the intelligence phase, we analyzed the region and evaluated in terms of its functional, demographic and geographical features. With the created DEM (Digital Elevation Model) map, we determined the risky areas in terms of tsunami. At the next stage, we defined the risky areas as starting points, while the hospital and emergency meeting areas in the region as the destination points. During the design phase, routes were developed for evacuation from risky areas to destinations. While creating the routes, real-time traffic density analyzes were transferred to the system in order to make more accurate calculations. Two different scenarios were created for pedestrian and vehicle routes. Finally, in the choice phase, we propose a Decision Support System to create evacuation routes by providing warnings in earthquake-induced tsunami situations.
2021-01-01T00:00:00ZIn-vehicle personalized routing for a heterogeneous group: An experience-based method for decision support system
https://hdl.handle.net/20.500.12511/8141
In-vehicle personalized routing for a heterogeneous group: An experience-based method for decision support system
Çavuş, Özlem; Cenani, Şehnaz; Çağdaş, Gülen
Customized navigation devices allow personalized routings based on user preferences. In determining common preferences for multi-user, it may become di cult to meet at a common point due to conflict of interests. A decision support system could serve as an asset to increase the quality of decisions users take. In conventional systems, decision making ties to pre-defined preferences of a single user or a homogeneous group.
2021-01-01T00:00:00ZDesign-build workshops in architectural education. A case study; adobe bus stop in northern cyprus
https://hdl.handle.net/20.500.12511/5480
Design-build workshops in architectural education. A case study; adobe bus stop in northern cyprus
Güner, Aysun Ferrah; Benli, Gülhan; Karaçar, Pelin; Kasapseçkin, Mustafa Adil
The design-build workshops became a significant pedagogical tool to expand student learning experiences in practice environment. The aims of the workshop are to apply teory-practice and design-build as whole process, to understand design, building techniques, material and to improve student practical skills.The workshop was organised by Istanbul Medipol University, the school of fine arts, design and architecture in the education year of 2015-2016. After the second semester twenty first-year students, four lecturers from architecture and interior architecture programmes worked in the design-build teams.At first a research seminar was organised to develop a clearer understanding of the project objectives such as the need of project for community of Northern Cyprus, the usage of adobe which is a traditional building material of region, sustainable design, resource conservation etc. The design opportunities from ideas to building were explored with the second seminar and the team developed the design project for construction. Before construction a local specialist made another seminar to explore the material of adobe, features, techniques etc.The workshop was an example in which students design and built an adobe bus stop. Besides understanding of design, adobe as building material and the all process another important feature of our design-build workshop was the exploration of sustainable design which includes cultural and historic preservation.Thus, the paper will have all of the details regarding to the design-build workshop the predesign, design, build process and student approaches on learning outcomes.
2017-01-01T00:00:00Z