Urban Planning
Akbar Samadi; Rafat Shahmari Ardjani; alireza poursheykhian; Seyyede Sedighe Hasanimehr; Hossein asghari
Abstract
Earthquake is considered as one of the most catastrophic and destructive types of natural hazards that cause extensive damage to property and assets, especially in urban areas, and cause many human casualties by destroying buildings and urban infrastructure. Therefore, the first and most basic step in ...
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Earthquake is considered as one of the most catastrophic and destructive types of natural hazards that cause extensive damage to property and assets, especially in urban areas, and cause many human casualties by destroying buildings and urban infrastructure. Therefore, the first and most basic step in crisis management in order to reduce the effects of an earthquake is to identify vulnerable levels against this crisis. In this regard, the present research was written with the aim of evaluating the level of vulnerability of Ardabil city against the earthquake crisis. The research method in the present study is mixed (quantitative and qualitative) with practical purpose and analytical and exploratory nature. The statistical population of the research also included managers and elites of Ardabil city, and the sample size was determined through the Delphi method of 20 experts. Also, in line with information analysis, have been used AHP technique in Expert Choice software, Weighted Overlay method in GIS software, and RADIUS damage estimation model. The findings of the research show that by examining 15 criteria, the criteria of distance from the fault, proximity to hazardous uses and access to service centers have the most importance (influence) to assess vulnerability to earthquakes. Also, according to the evaluation of the examined criteria and its integration in the fuzzy overlay method, it was found that about 13% of the tissue of Ardabil city is in the zone of very high vulnerability and about 18% is in the zone of high vulnerability. On the other hand, the results of the RADIUS model show that 13853 buildings are subject to destruction, 36% of them are in region 1 and 29% of them are in region 4. Also, the number of injured in the possible earthquake is estimated to be 67117 and the number of dead is 3113.
Urban Planning
Mostafa Movasati; Hassan Ahmadzadeh; Ali panahi
Abstract
Earthquake is one of the most dangerous, destructive and unpredictable natural hazards. Therefore, identify the vulnerable areas of cities is necessary in order to increase the capacity to deal with earthquake risks and crisis management of this risk. In this regard, the present study was written with ...
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Earthquake is one of the most dangerous, destructive and unpredictable natural hazards. Therefore, identify the vulnerable areas of cities is necessary in order to increase the capacity to deal with earthquake risks and crisis management of this risk. In this regard, the present study was written with the aim of investigating the vulnerable levels of Tabriz metropolis against earthquakes and providing crisis management solutions (before the crisis) to reduce the effects of earthquakes. The research method in the current study is mixed (combination of qualitative and quantitative approaches) with a practical purpose and analytical-exploratory nature, in order to analyze information; FAHP method in ArcGIS and PROMETHEE method were used. In addition, the statistical population of the research includes managers, city officials, and academic elites. The sample size of managers and officials was determined using Cohen's method at the 95% confidence level, 90 people, and the method of accessing them is based on the snowball method. The size of the sample of academic elites is also determined based on the targeted Delphi sampling method of 14 people. The findings of the research show that the peripheral and central areas of the city have the highest vulnerability potential. Meanwhile, regions 10 and 1 with net flow of -0.454 and -0.527 are considered among the areas with high vulnerability to earthquakes. Among the factors affecting the vulnerability of these areas, we can mention the proximity to the fault, wear and tear of the tissues, distance from the aid centers, high density and the lack of elasticity of the roads. For this purpose, a systemic and integrated approach is needed in order to be able to recover and empower the community, and in this regard, it is necessary to pay attention to the pre-crisis stage in the dimensions of building retrofitting, improving access and
Urban Planning
Mohammad Reza Pourmohamadi; Rasoul Ghorbani; Ghafour Alizadeh
Abstract
IntroductionTabriz city, the largest metropolis in northwestern Iran, has a privileged and strategic position in Iran due to its location on the political and cultural borders and in the transit route of neighboring countries (former the Soviet Union, Turkey and Iraq). In the current situation, due to ...
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IntroductionTabriz city, the largest metropolis in northwestern Iran, has a privileged and strategic position in Iran due to its location on the political and cultural borders and in the transit route of neighboring countries (former the Soviet Union, Turkey and Iraq). In the current situation, due to the large number and variety of threats and the establishment of a large number of centers of gravity in this city, the probability of injuries has increased sharply; As a result of this, in order to improve the security of the city, by examining the vulnerability of the centers of gravity against potential threats based on the safety considerations of passive defense, the necessity of intervening is a very smart affair.Data and MethodThis research in terms of purpose is applied-developmental with a descriptive-analytical approach, and the method of collecting data is in the form of documents, library and field surveys (questionnaire and survey of 20 experts in the fields of urban planning, architecture and passive defense) have been. In the methodological discussion, first, the literature on the three concepts of threat, vulnerability and passive defense requirements in the field of urban planning in Iran and other countries, To identify assets and identify potential threats to those assets as influential factors in the vulnerability of gravity centers in the ten metropolitan areas of Tabriz, has to be studied. By selecting the latest questionnaire models prepared by the Passive Defense Organization of Iran, determining the grading of gravity centers and basic threat assessment of centers of gravity was done by provincial experts and experts of the statistical community. To determine the importance coefficient of graded gravity centers, using ANP network analysis and Super-Decision software (by determining the correlation and comparisons of standard pairs and indices by experts in the statistical community), unbalanced, balanced, and limited matrices were formed, followed by the determination of the importance coefficients of Centers gravity were determined; Then, the criteria and indicators of the research were prepared in a categorical manner. Spatial maps of all layers related to criteria and indicators in the GIS environment related to Arc-Map software were overlapped by applying the coefficient of importance and evaluating the appropriate distance from the objectives, criteria, and indicators with emphasis on the underlying threat. In the end, the vulnerability zoning map of the centers of gravity of the ten areas of metropolitan Tabriz was prepared.Discussion and ConclusionThis research process is as follows:Using a quantitative model to determine the levels of gravity centers of Tabriz metropolis, showed that out of 32 selected assets, 17 assets are classified as vital and sensitive centers and 15 assets as important and maintainable centers. The result is the existence of numerous vital and sensitive centers; By creating several important centers instead of a single vital and sensitive center and increasing the distribution of important centers in the city, effective action to improve the security of the city against military attacks is one of the key issues in discussing harm and threat in passive defense.Based on the quantitative threat model affecting the assets of Tabriz metropolis, the threat of air and missile attacks was selected from the possible threats of sabotage, terrorism, cyber and people-centered protests, and missile and air attacks as the base threat. This threat has overshadowed its damage. The result indicates that this threat dominates the city over assets, so missile and air strikes as a basic threat in modeling, network analysis, and standardization of layers in the GIS environment.By calculating the final map related to the vulnerability of ten metropolitan areas of Tabriz through fuzzy overlap functions in the ARC- GIS environment based on 22 effective indicators obtained from the model of determining the level of centers of gravity, in the form of 5 criteria of vital arteries, crisis management centers, military and law enforcement centers , Urban equipment and support centers, the basic threat of air and missile attacks and determining the significance coefficient of criteria and indicators were obtained in network analysis software using SuperDecision method of damage zoning in Tabriz. Vulnerability zoning of Tabriz city is classified into five classes: Zone with very low vulnerability of 13.7%, Zone with the low vulnerability of 9.5%, Zone with medium vulnerability of 23.5%, Zone with high vulnerability of 32.3% and Zone with the vulnerability of very much 21% of the total area of Tabriz metropolis. The result of this is far from the principles and considerations of passive defense and intensifies the spatial vulnerability of the city and requires the development of a strategy based on the principles of passive defense to eliminate the vulnerability of the city.A very important conclusion that was obtained based on the average model of the nearest neighbors, the average distance expected from the centers of gravity of Tabriz metropolis is calculated to be 455 meters, while the average distance of existing centers of gravity is 264 meters, which indicates the ratio of the closest The neighborhood is 0.58. The result of this ratio and the p and z values of the model shows the cluster distribution of the centers of gravity of Tabriz. This is far from the principles and considerations of passive defense and aggravates the spatial vulnerability of the city.Based on the studies of the SWAT model, the conclusion of evaluating the strengths and weaknesses of internal factors by studying and identifying vital, sensitive, and important centers in the metropolis of Tabriz city, indicates that the weaknesses of the city are more than its strengths. As a result, strategies should be formulated in such a way that their strengths are addressed to eliminate their weaknesses from the perspective of passive defense principles. The result of measuring the external environment to identify the opportunities and threats of the city in relation to the analysis of defense elements indicates that the opportunities for advancing the city are less than the threat, so strategies should be formulated in a way that can improve measures and repair existing threats and failures. Do different cities; The combination of the above two strategies indicates the development of defensive strategies as the main objectives of this study in the metropolis of Tabriz in order to reduce the vulnerability and threats to eliminate the vulnerability of the city.Research ResultsSome defensive strategies in order to improve the quality of passive defense in Tabriz are presented as follows:1- Parallel access networks should be organized in accordance with the hierarchical system. Establish safe havens against threats at the point of rupture between tissues;2- Create a suitable distance between the bridges and create complementary communication routes next to the bridges;3- Underpass and metro networks should be organized for multi-purpose use and temporary accommodation;4- Construction rules should be observed in the area of faults and rivers. Create proportionate functions in these areas;5- Dilapidated and compacted tissues in the city center should be reconstructed according to the requirements of passive defense. Create green spaces and neighborhood parks to create temporary shelter spaces and blast waves;6- Prevent the establishment of sensitive and dangerous centers inside dense tissues. These centers should be moved to low-density areas and open spaces that are close enough to residential areas;7- The satellite cities of Tabriz should play a functional role in synergistic activities. These satellite cities play a role in establishing industrial activities and sensitive facilities for their dispersal;8- To reduce the immigration rate of Tabriz city. Excess population to settle in suburban areas and interconnected cities;9- To reduce the concentration of hazardous and polluting industrial activities in the west of Tabriz;10- Using green spaces with tall and umbrella trees within the confines of facilities and equipment, in order to create natural camouflage and develop green belts and improve the quality of the environment;11- Decentralization of the establishment of a large number of sensitive and important centers in the form of clusters in the central core of the city, especially in areas 8, 3, and 4, which should be done step by step due to the high cost;12- Decentralization of population density from zones 1 and 10 based on the principles of passive defense;13- Maintaining the proximity of endangered land uses with areas 5, 9, and 6 and part of 7 with relatively low population density, which are almost desirable and well located;14- Basic action should be taken to remove military centers in the form of creating multi-purpose and recreational uses due to excessive accumulation of military, industrial, facilities, and urban equipment in the southern, southwestern, and northern suburbs of the city, which are endangered uses.A basic action to remove a number of sensitive land uses and vital artery transfer centers (which are constructive and mobile urban elements) from sparsely populated areas 2, 1, 9, and 5, in the form of creating land uses. Multifunctional and recreational, to be done. Transfer some of them to areas 6, 4, 3, 10, 8, and part of 7 (areas 10, 8, and to some extent 4 have a dense population);16- Basic action to adjust the ignition uses due to more accumulation and lack of open and green space in the central areas of the city, and 8, 2 and to some extent 3;Although areas 6, part of 7, and to some extent 4 have the most open and green spaces, the existence of large industrial uses with transnational products (tractor and machine building) and the airport has threatened these areas. This requires preventing the development of the city towards these areas;18- Due to the circular structure of Tabriz, the existence of unsuitable arterial networks in areas 1, 10, and 8, which have a high population density, have small and old parts, and have a suburban texture of the city. In these vulnerable areas, safe points and networks of appropriate thoroughfares should be established and repaired in order to guide the population in times of crisis;Lack of optimal distribution of relief and hospital centers in the city can be seen. So that the central saturation areas and suburban areas, including areas 9, 5, 6, and to some extent 3 and 7 do not have this use. This makes it difficult to provide optimal service operations in times of crisis;Necessary action should be taken regarding the camouflage and concealment of urban facilities with high identification capabilities, such as high-voltage power substations, gas pressure reduction substations, and water tanks that are distributed in urban areas;Establishing several important centers instead of single sensitive centers and adopting safe spaces in them is one of the key measures to improve the level of security in military attacks.
Urban Planning
Abolfazl Ghanbari
Abstract
Introduction Explaining resilience to threats is an understanding of how social, economic, institutional, political and executive capacities are significant in improving the resilience and identifying different dimensions of resilience in human societies. On the one hand, the ...
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Introduction Explaining resilience to threats is an understanding of how social, economic, institutional, political and executive capacities are significant in improving the resilience and identifying different dimensions of resilience in human societies. On the one hand, the type of attitude to the topic of resilience and its way of analysis, plays a key role in determining how well the current situation is and its causes, and on the other hand, it can play a fundamental role in the implementation of risk reduction policies and measures." The relationship between vulnerability and resilience becomes necessary when the issue under consideration is considered from the perspective of environmental risk studies. Therefore, the main question for many researchers in this field is whether resilience is opposed to vulnerability. Or is resilience a factor in vulnerability? And does vulnerability in a simple definition refer to the ability to lose or not? (Cutter, 1996)." Vulnerability and resilience concepts provide valuable conceptual frameworks and models for understanding how communities and human systems cope with environmental and social change (Adger, 2006). In the present study, considering the importance of analyzing the relationship between vulnerability and resilience among global research and the level of research conducted in the country, we try to examine the situation of these two concepts by applying a quantitative approach in the eastern shore of Lake Urmia. In this study, the eastern region of t Lake Urmia, including 8 counties: Azarshahr, Osko, Bonab, Tabriz, Shabestar, Ajabshir, Maragheh and Malekan, were selected as a study area.The study area is one of the most important and sensitive areas in East Azarbaijan province, which has been the focus of population and various economic activities. In addition, the eastern shore of Lake Urmia has been affected by ecological changes in recent years. Given that the main purpose of this study is to provide a comprehensive and integrated approach to determining the state of vulnerability and resilience to natural hazards and disasters, therefore, in the first step, the study area from the perspective of environmental threats and disasters. Naturally, the resilience capacity of the region has been examined in the form of political divisions of the village and at the level of rural settlements. Therefore, the fundamental question of the present study can be posed in such a way that what is the relationship between environmental vulnerability and the resilience capacity of the region within the eastern shores of Lake Urmia? Methodology The research methodology is descriptive-analytic and its purpose due to application in to the local planning and rural development system is applied. By doing literature review, an innovative approach was introduced by combining quantitative methods of index basis and GIS in explaining the relationship between environmental vulnerability and regional resilience. Accordingly, two innovative index including Environmental Vulnerability Index (EVI) and Regional Resilience Index (RRI) were implemented. For the vulnerability assessment 8 criteria and for the resilience assessment 19 criteria were chosen. Discussion and results In research aimed at analyzing resilience, the most important issue to consider is vulnerability analysis and recognizing the threats ahead in order to identify resilience capacity and capabilities. As stated in the sections of the first article, the approach of resilience in the field of management and planning, and especially in crisis management, is in the stages of its evolution and evolution. From this point of view, in terms of concept, operation and application, it has problems and weaknesses that have been explained in the theoretical foundations section. According to the findings of the study (Cutter, 1996), reproduction due to environmental hazards, as well as hazards, hazards and disasters in nature have a spatial and geographical nature in nature, so its study from this perspective will be useful and beneficial. Many studies such as Cutter et al., 2008; Cutter, Burton, & Emrich, 2010; Rose, 2007) have tried to provide quantitative analytical models and operational frameworks for improving and enhancing the resilience of communities using appropriate indicators. The most important distinguishing feature of previous studies in the field of regional resilience assessment with the present study can be considered in the lack of consideration of spatial-spatial dimensions and the multi-spectral criteria used. In the present study, by emphasizing the spatial dimensions and combining the quantitative approach of decision-making approach, an attempt was made to examine the relationship between the two concepts of environmental vulnerability and regional resilience. In the present study, according to this principle in planning and management for crisis occurrence, first the type of threats and environmental hazards in the study area were described Then, using 8 selected criteria, the vulnerability situation was analyzed due to environmental hazards. The results of this part of the study indicate that 27% of the study area is located on the highly vulnerable class. Where the whole area of Azarshahr and Ajabshir is covered and many areas of Osko, Shabestar and Tabriz are also in the process of being damaged. Recognizing the vulnerability of the study area, it should be acknowledged that the southern and southeastern regions are in good condition and are in low-vulnerability classes. However, in the process of resilience measurement, which initially included three indicators of social resilience, access to communication infrastructure and resilience of building strength, and finally, by merging the three mentioned layers, the overall regional resilience index was obtained. The results of this process show that 43% of the total area of the region is in the desired state of resilience and 27% have less resilience to environmental hazards in the study area. The eastern shore of Lake Urmia is one of the equipped axes and development of large population centers in the province of East Azerbaijan and is also a bridge between other regions in the northwest of the country. Therefore, its vulnerability disrupts other regional functions as well. Therefore, the essence of the findings of this study is that this range is exposed to damage caused by environmental hazards. So that the drying of Lake Urmia affects the functions of human settlements in this region and if this trend continues, it will have irreparable effects on the environmental and human structures of this region. In addition, with the possibility of an earthquake in this area, one of the vulnerable areas of Tabriz metropolis and the surrounding rural settlements will be. Therefore, in order to prepare in advance, the resilience of local communities at the level of rural settlements is felt more than ever. Also, the study area, especially in the marginal areas of Lake Urmia in the cities of Azarshahr and Ajabshir against the dangers of floods is seriously vulnerable. Conclusion The results showed that 62% of the study area was in high vulnerability, with its spatial distribution pattern mainly in the center of the region and within the administrative limits of counties like: Azarshahr, Ajabshir and Osko. In contrast, 43% of the area has a high capacity of resiliency and 27% of the total area is in a low resilient situation. In addition, a total of 168 rural areas have been recognized in identified areas with a low resilience capacity.
Urban Planning
Kiumars Habibi; Mohammad Ezzati; Kamal Torabi; Bakhtiar Ezzat Panah
Abstract
Considering high construction and population density, unstable structures, narrow streets, and high rate of inclusion in cities, it is necessary to plan and carry out researches to minimize vulnerabilities caused by natural events. To accomplish this, one of the important efforts can be identifying effective ...
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Considering high construction and population density, unstable structures, narrow streets, and high rate of inclusion in cities, it is necessary to plan and carry out researches to minimize vulnerabilities caused by natural events. To accomplish this, one of the important efforts can be identifying effective factors in reducing vulnerabilities of cities against earthquake. Recognizing and investigating the vulnerability of urban areas, particularly within the context of the old fabrics and informal settlements, is of great importance. By specifying vulnerable areas against earthquakes, with an awareness of the damage they may suffer, cities can be planned and designed in a way that the least damage during an earthquake is received. In this paper, by picking several indicators such as land use, street width, number of floors, rate of inclusion, population density, fabric segmentation, occupied space, floor-area ratio of buildings, built quality, structure type, building age, access to open spaces and distance to the main seismic belt and by employing the MIHWP model along with the capabilities of the Arc GIS software and by multiplying and overlaying the data layers of indexed indicators, the seismic vulnerability of the region 10 of Tabriz has been represented. The results conclude that the buildings with low width streets, high number of floors and high value of enclosure, less lot areas, high occupied space and building and population density, low built quality, unstable structures, old buildings, more distance to open space and proximity to major seismic belts, have been rated as high vulnerable areas. Within the region, moving from the North West to the center and North East, vulnerability considerably increases
All other Geographic fields of studies , Interdisciplinary
Asghar Asghari Moghddam; Mir sajad Fakhri; Morteza Najib
Volume 19, Issue 54 , February 2016, , Pages 19-41
Abstract
Purpose of this study is zoning of Marand aquifer vulnerability mapping using DRASTIC, AVI methods and comparing their susceptibility adopted from these methods. The DRASTIC method is a combination of seven measurable hydro-geological characteristics that are effective on transportation of contaminant ...
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Purpose of this study is zoning of Marand aquifer vulnerability mapping using DRASTIC, AVI methods and comparing their susceptibility adopted from these methods. The DRASTIC method is a combination of seven measurable hydro-geological characteristics that are effective on transportation of contaminant into groundwater. The GODS and AVI methods combine four and have two properties respectively. The DRASTIC method results is the most complete index for assessing groundwater vulnerability, which has been estimated the vulnerability for the study area as moderate 50.4 percent, high 32.9 percent and very high16.7 percent. The GODS method results suggest three classes for the Marand aquifer vulnerability including moderate, high and very high with 43.8, 5.16 and 51.04 percent, respectively. Also the AVI method results indicate that the aquifer has a vulnerability of moderate, high and very high with 39.13, 6.5 and 54.37 percent, respectively. In all three methods, the degree of vulnerability in the East, Southeast and Northeast parts of the pain is more than the central and western parts of the pain. DRASTIC model is determined the vulnerability areas more accurately due to having more features and different weighting of the features based on their role in pollution.
Karim Hosseinzade Delir; MohammadHosein Khodabakhah Charkhaloo
Volume 18, Issue 50 , February 2015, , Pages 153-174
Abstract
Large earthquakes usually cause huge damages to human life. Street network vulnerability makes the rescue operation to encounter serious difficulties especially at the first 72 hours after the incident. Today, physical expansion and high density of great cities, due to no attention to hierarchical street ...
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Large earthquakes usually cause huge damages to human life. Street network vulnerability makes the rescue operation to encounter serious difficulties especially at the first 72 hours after the incident. Today, physical expansion and high density of great cities, due to no attention to hierarchical street network, narrow access roads, large distance from medical care centers and location at areas with high seismic risk, would lead to a perilous and unpredictable situation in case of the earthquake. Occurrence of earthquakes with large magnitude would destroy the functionality of street networks and cause large amount of casualties and major financial damages. In Tabriz city, the areas of first and fifth zones are equal to 3327 hectares. The area of first and fifth zones is over 2844 and 483 ha respectively. According to current estimates, the population of these zones is equal to over 458939 people. In this research using 12 indexes such as: land use, width of roads, height of buildings, street inclusion, population and construction density, buildings area, quality, materials and antiquity of building, access to medical centers, distance and proximity to major faults vulnerability degree of street networks in zones 1 and 5 of detailed plan of Tabriz against the earthquake is calculated through overlaying maps and data in combination with IHWP method and GIS. The article concludes that buildings alongside the streets with high population and building density, low building quality, far to rescue centers and high level of inclusion represent high rate of vulnerability, compared with other buildings. Also highways and streets with substantial width and low building and population density hold little values of vulnerability. By moving on from east to west of the zones, the vulnerability increases. This vulnerability of streets is in high level in the central zones. Therefore, the existing street networks in the center will be unable to perform their role at the case of occurrence of earthquake.
gholamreza Dinpanah
Volume 18, Issue 50 , February 2015, , Pages 175-188
Abstract
Large earthquakes usually cause huge damages to human life. Street network vulnerability makes the rescue operation to encounter serious difficulties especially at the first 72 hours after the incident. Today, physical expansion and high density of great cities, due to no attention to hierarchical street ...
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Large earthquakes usually cause huge damages to human life. Street network vulnerability makes the rescue operation to encounter serious difficulties especially at the first 72 hours after the incident. Today, physical expansion and high density of great cities, due to no attention to hierarchical street network, narrow access roads, large distance from medical care centers and location at areas with high seismic risk, would lead to a perilous and unpredictable situation in case of the earthquake. Occurrence of earthquakes with large magnitude would destroy the functionality of street networks and cause large amount of casualties and major financial damages. In Tabriz city, the areas of first and fifth zones are equal to 3327 hectares. The area of first and fifth zones is over 2844 and 483 ha respectively. According to current estimates, the population of these zones is equal to over 458939 people. In this research using 12 indexes such as: land use, width of roads, height of buildings, street inclusion, population and construction density, buildings area, quality, materials and antiquity of building, access to medical centers, distance and proximity to major faults vulnerability degree of street networks in zones 1 and 5 of detailed plan of Tabriz against the earthquake is calculated through overlaying maps and data in combination with IHWP method and GIS. The article concludes that buildings alongside the streets with high population and building density, low building quality, far to rescue centers and high level of inclusion represent high rate of vulnerability, compared with other buildings. Also highways and streets with substantial width and low building and population density hold little values of vulnerability. By moving on from east to west of the zones, the vulnerability increases. This vulnerability of streets is in high level in the central zones. Therefore, the existing street networks in the center will be unable to perform their role at the case of occurrence of earthquake.
Malakeh Azizpour; Ali Zanghiabadi; Zahra Ismaeilian
Volume 16, Issue 41 , November 2012, , Pages 169-195
Abstract
One of the issues involved the more world large cities is the issue of natural disasters. Regarding the nature of being unexpected most of the natural occurrences and the necessity of a quick and accurate decisions-making, operation and theoretical and basic concepts have generated a knowledge called ...
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One of the issues involved the more world large cities is the issue of natural disasters. Regarding the nature of being unexpected most of the natural occurrences and the necessity of a quick and accurate decisions-making, operation and theoretical and basic concepts have generated a knowledge called “crisis management”. To identify the urban crisis management and vulnerability of the centers related to the crisis of a city against natural disasters, its need to study the main factors effective in urban crisis management vulnerability. One of the effective factors in urban crisis management vulnerability is the structural and non-structural construction of organization related to the crisis management including the hospitals of the city. Health care and remedial centers especially the hospitals are such as the important places encountered with serious hazards and damages with a high rate of injuries and losses during the occurrence of natural events and accidents. Therefore, studying this issue in these centers seems to be very important.
The aim of this article is to rank the hospitals of Esfahan’s urban zones from the view of structural and non-structural construction and to achieve the structural and non-structural priorities of the city hospitals in order of their importance in increasing the vulnerability regarding to the studying indices. The survey method is “descriptive-analytic” in which the quantitative models have been applied. For a hierarchy analysis about the crisis management of Isfahan's hospitals, 41 variables at 9 basic factors in 25 hospitals were studied using the analytical hierarchy process (A. H. P). The results obtained from A.H.P. show different indices in which the factors of framework; type, building age and the number of beds with the importance rate of 11.959, 21.12 and 22.65 are in the first orders, respectively.
In fact, these factors cause the increase of vulnerability in the hospitals of the city if no enough attention is paid to when constructing and equipping. Moreover, the hospital of zones 1 and 3 hare the highest rates of vulnerability among the hospital of the city. Hence, the presence of difference in the rate of hospitals vulnerability at different zones of Esfahan is validated from the viewpoint of the structural and non-structural construction (the survey hypothesis).
Asghar Zarrabi; Raheleh Saniei
Volume 16, Issue 40 , September 2012, , Pages 141-159
Abstract
Vulnerability of cities for earthquakes argue is a topic that is urban planning experts.
This subject has variety of aspects such as stability and by instability of structural material. It's relation with humanities indexes is studied as urban planning hidden sector and the planning ignoring it will ...
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Vulnerability of cities for earthquakes argue is a topic that is urban planning experts.
This subject has variety of aspects such as stability and by instability of structural material. It's relation with humanities indexes is studied as urban planning hidden sector and the planning ignoring it will fail. Purpose of this research, is the determination of humanities indexes which affect on urban area stability and instability of structural material in Iran states.
Therefore, this research has used analytic and quantitative methods. At first, stability and instability of structural Material were calculated by SDI method. In this method Iran states were divided in to four parts including Mazandran, Ilam, Esfehan, Gilan, Markazy, Kohkilooye and Boyer Ahmad and Tehran as developing states. In the second step, by using factor analysis 90 factors are reduced to 11 effective factors. Regression model detected that first, fourth; seventh and ninth factors have the highest effects in developing material.
