The examination of gathering points' capacity regarding mobility and accessibility: Case of Bayrakli district

The concept of accessibility that bases on continuing the flow of people, goods and services uninterruptedly is discussed as "maximum contact by minimum facility". This concept which is related with the distance has been evaluated various criteria such as physical, economic, perceptual, temporal, etc. Several assignations (optimum location, minimum distance, best distribution method, etc.) have revealed the importance of gathering points in terms of proceeding the disaster management properly. The origin point of linking "accessibility" and "transportation network" is the mobility which reveals as accessing people to adequate gathering points and services in the shortest time. These gathering points which are determined due to the specific criteria and also referred to the social infrastructure areas have a vital importance when any disaster or emergencies occur; so the site selection, availability and accessibility of these areas become extremely significant. The aim of this study is to examine the accessibility of gathering points in Bayrakli district located in Izmir city by taking minimum standards and also some recommendations into consideration. The spatial analyses based on current and potential gathering points are carried out via ArcMap software. The current and potential gathering points in Bayrakli district are examined in terms of accessibility their capacity for each neighbourhood due to their spatial distribution. According to the results, each gathering points in neighbourhoods cannot be accessible in the shortest duration by walking and also the current urban pattern affects the capacity parameter regarding the accessibility and mobility significantly. © Authors 2018. CC BY 4.0 License

Afet Sonrası Toplanma Alanlarının Mevcut Durumunun İrdelenmesi: Malatya Kent Merkezi Örneği

Ülkemiz tarihsel süreç içerisinde birçok afet ile karşı karşıya kalmıştır. İnsanlar afet sonrası yaşadığı korku ve şoku atlatabilecekleri, temel ihtiyaçlarını karşılayabileceği, iletişim imkânı sunan, herkes için ulaşılabilir olan ve yeterli kapasiteye sahip, iyi tasarlanmış afet sonrası toplanma alanlarına ihtiyaç olduğu bir gerçektir. Dolayısıyla çalışmanın amacı, Malatya kentsel çekirdek sınırlar içerisinde bulunan afet sonrası toplanma alanlarını, literatür taraması sonucunda elde edilen kriterler eşliğinde değerlendirilerek, yeterliliklerin ortaya konulmasıdır. Bu amaç doğrultusunda çalışmada öncelikle ulusal ve uluslararası literatür taraması yapılarak afet sonrası toplanma alanları değerlendirebilmek için kriterler belirlenmiştir. Bu kriterler arasından, uzaklık ve erişilebilirlik ile ana yol bağlantılı lığını belirleye bilmek için mekân dizim yönteminden yararlanılmıştır. Kapasite hesabı ise toplanma alanının yüzölçümünün kişi başına düşmesi gereken 2,5 m² ye bölünmesi ile elde edilmiştir. Çalışmanın sonucunda, kentsel çekirdek sınırları içerisinde bulunan 10 afet sonrası toplanma alanı içerisinde sadece Abdullah Gül Parkının kriterleri karşıladığı, geri kalan toplanma alanlarının ise kriterleri karşılamadığı belirlenmiştir

Connecting urban planning, management and open space in seismic zone

PhD ThesisTehran, the capital of Iran, is located in an area of high seismic risk and seismologists believe that a strong earthquake will affect Tehran in the near future. With a population of nearly eight and a half million, it is estimated that probably a large number of people would lose their lives. Given this unfortunate possibility, and that the majority of buildings are built directly next to one another, any lateral force on one building could have a destructive impact on the others, on the network of connections and on the neighbourhood as a whole. A lack of open spaces in many residential and commercial areas will make immediate post-event organised responses, coordination, decision-making and resourcing difficult and challenging. These spaces may be considered for allocation of tasks such as providing emergency shelter, water and medical supplies, public health and sanitation, and housing replacement. Therefore, the question is whether Tehran is ready for the challenges, disaster mitigation and preparedness, response and recovery. This research is focused on the interaction between physical systems and social systems to lessen societal exposure to the risks of earthquakes. In doing so, first the approaches to integrated disaster and urban planning from other contexts were studied. After the selection of an assessment tool, the spatial, physical and social vulnerability of Tehran and the case study area were studied followed by the analysis of their risks and capacity. A detailed field study within the Khazaneh neighbourhood included estimating earthquake damage and casualties based on probable damage ratio and population distribution, and studying and developing criteria for identification and location of safety evacuation routes, shelter and other emergency utilities (hospitals, fire stations, etc.) in urban areas. It was concluded that earthquake protection systems are now a critical issue for the enhancement of seismic reliability of this urban region. Preparing disaster reduction strategies in Tehran require comprehensive disaster measures to be implemented in urban development plans, open space designs, urban management and the building industry to enhance disaster prevention capabilities and to minimise and control disasters throughout the Greater Tehran Area

Using Network Analysis for Emergency Planning in Case of an Earthquake

Populations in several countries including Greece face a continuous earthquake hazard. Planning to explore how the authorities will conduct their actions when such incidents occur is very important. People have to move to safe areas called refuge areas. GIS network analysis tools can help predict how many and which people these refuge areas can host depending on the location of their residence. A network allocation model is used