Urban Planning
ali akbar taghipour; Hossien Rostami
Abstract
Introduction Security has always been one of the most important issues facing human beings. Throughout history, man has sought to have security through various defending instruments. This defense has two types including military and civil defense called respectively, active defense and passive defense. ...
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Introduction Security has always been one of the most important issues facing human beings. Throughout history, man has sought to have security through various defending instruments. This defense has two types including military and civil defense called respectively, active defense and passive defense. Passive defense is a strategic plan requiring direct management and planning of expert human forces including instruments, enginery, organization, training, and management of forces (Taghvayi and Jozi Khamselouyi, 2012:17). Considering the high volume of capitalization and establishment of many installations as well as economic tools and most importantly, high population residences, cities have significant financial and bodily vulnerabilities in case of the outbreak of war. Due to its strategic status, Tabriz city, as a metropolitan in the northwest part of Iran, faces various human threats. This city is one of the five regions of Iran facing ethnic regionalism (Mohammadi et al., 2008:60). According to the geographical, geopolitical, political, and economic conditions of Tabriz, it has been sometimes recognized as the economic center of Iran, and sometimes at least in the north-west region of the country (currently), it has been identified as the first pole of industry, trading, and commerce (GHorbani, 2003:123). The existence of important economic, military and political centers has made the discussion of the passive defense subject of this city an important issue. Data and Method The purposeful article was developmental-applied in terms of policy-making, and it was analytical-descriptive in terms of the design of the study. To collect the literature of the subject and theories of the study, library and documentary method was utilized. Moreover, Arc Gis, version 10, software was used to analyze the data and provide the required maps, which had an important role in the advancement of the study after collecting various layers since they showed different terms. Among the most important utilized criteria and indexes for the analysis, urban electrical substation privacies, urban gas pressure reduction substation privacies (Siami et al., 2013:31), gas and petrol station privacies (Valipour et al., 2014:174), military center privacies, distance from hospitals, distance from main streets (Pour Mohammadi et al., 2010:111), water sources privacies (Ministry of energy, 2014:161), distance from firefighting centers (Azizim Bornafar, 2012:132) and distance from open and green spaces (Razavian, 2002:142) could be highlighted. Results and Discussion Having accomplished the standardization of layers, their integration was the second part of the research. To this end, and for determining their importance and the weight of each layer, a hierarchal analysis method was utilized for such samples whose criteria number was high. The target Expert Choice hierarchal analysis model was determined in specific software and the final weight of each layer was calculated. As the weight of each layer was obtained, they were integrated using GIS, thus the final map of vulnerability status was shown. The results of zoning indicated that some parts of Tabriz city, especially regions from the center of the city to the eastern parts and northern parts, were the most suburbanite fabrics of the city and had higher densities; moreover, some of the newer fabrics in the western parts of the city had higher vulnerabilities. Besides, moderate and high vulnerabilities could be observed around the main streets of the city and highroads due to the importance of these infrastructures and the establishment of other related infrastructures related to transportation services. Conclusion The results of this study were somehow in line with the studies conducted by Siami et al., (2013) since both of the studies showed that regions having high population densities that needed various infrastructures had high vulnerabilities. Moreover, the hierarchal analysis method indicated that the vulnerability of infrastructures in Tabriz included respectively, military centers, electronic, telecommunication, streets, gas, and hospital infrastructures. Besides, having a view on the population and building density map and their adjustment with the vulnerability of infrastructures, it could be stated that most of the areas having high vulnerability were located in these overgrown regions, thus, the populated regions would have more vulnerability in crisis time; this fact makes the subject of crisis management and serving an important issue. In central parts of the city, the vulnerability was low due to the lack of vital installations (lack of empty lands), however, the vulnerability of infrastructures was high in suburbanite regions.
Mohammadreza Poumohamadi; Hasan Mahmoudzadeh
Volume 19, Issue 51 , April 2015, , Pages 59-80
Abstract
The most important part of a city is housing and assigns major part of land uses for itself. In such a way More than 60 percent in small towns and about 40 percent of big cities is covered by residential land use. The most important and complex items to the urban planners determining the quality of the ...
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The most important part of a city is housing and assigns major part of land uses for itself. In such a way More than 60 percent in small towns and about 40 percent of big cities is covered by residential land use. The most important and complex items to the urban planners determining the quality of the residential Land use deployment position and match it with the principles of urban design. Prevalence of affective factors in determining the spatial quality of residential land use deployment location, Makes necessary using of multivariate procedures, for specifying the appropriate degree of quality of residential use. The main objective of current paper is to determine the current pattern of deployment residential land use in accordance with the standards of residential land use location in decuple municipality of Tabriz metropolis. To achieve this purpose, multi-criteria evaluation methods based on Analytical Hierarchy Process (AHP) employing for producing and analysis of maps. During this process, the natural and human factors have been identified in 12 indicators and the final quality map of residential land use deployment location based on AHP model produced. Based on research findings, from the total area of 4043.09 hectares residential land use about 502.14 Hectares with low to very low standard located in the northern parts of 1, 4, 10 and 558.61 Hectares in areas with average standard southern parts of the region's municipalities 1, 2 and 2982.314 hectares in areas with high to very high standards in the central parts of the city council district 3, 4, 5, 6, 7 and 8 are located.
Mohammad hosein Saraei; zahra Mohamadzade
Volume 18, Issue 49 , November 2014, , Pages 119-137
Abstract
People working in the field of transportation traffic and also experts who know expansion of special routes for bus, are vas one of the solutions for establishment of social justice and also causing speed in capacities of public transportation in metropolises. BRT is one of the temporary, short-term ...
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People working in the field of transportation traffic and also experts who know expansion of special routes for bus, are vas one of the solutions for establishment of social justice and also causing speed in capacities of public transportation in metropolises. BRT is one of the temporary, short-term and low cost solutions for solving the traffic problems of third world metropolises. Mashhad is the host for about 15 million yearly pilgrims and tourists. The increase of pressure on infrastructure particularly traffic system is particulary clear. BRT system is raised for solving traffic problems in Mashhad since 1387. This research is applied and it aim is the assessment of effectiveness level of BRT in Mashhad. After the collection of data, the efficiency level of BRT special routes in Mashhad was investigated using AHP model. Research results indicate that 1013 routes have higher effectiveness. These routes provide services from west to east in the study area.
