جستجوی مقالات مرتبط با کلیدواژه "urban structure" در نشریات گروه "جغرافیا"

The new approach to knowledge-based urban development focuses on four key economic, environmental, organizational and socio-cultural aspects, so that the emergence of knowledge-based economy is considered as the main factor in the development of global and local economies. Therefore, the purpose of this study is the role of the desired urban structure in the realization and development of the city of knowledge in Bandar Abbas by descriptive-analytical method and quantitative measurement (questionnaire) and using the pairwise comparison test, T and Friedman. The statistical population of the study is knowledge staff in 55 growth and technology centers of Bandar Abbas, which is a total of 258 people in the whole community. The results show that by comparing the current situation of Bandar Abbas and the city of knowledge with the spider diagram, it was found that Bandar Abbas has differences with the ideal in terms of indicators of the city of knowledge and the biggest difference is related to the structure index. It is urban and the results of the T test show that among the principles of the city of knowledge, the average importance of the urban structure index with 2.95 has the highest value, urban infrastructure with 2.90 and knowledge sharing with 2.71 and the importance of technology and information with 1.90 have a higher average value, respectively. Also, the comparison of the average rankings shows that the highest average rank is allocated to the urban structure with a value of 3.88, which means that the most important effective indicator in attracting knowledge staff in Bandar Abbas in terms of creative class is the desirable urban structure. Therefore, in order to retain knowledge workers in Bandar Abbas and due to the low average rank of knowledge-based environment, knowledge-based security and knowledge-based government, these three items should be on the agenda of city officials, elites and people.

Increasing population and car growth, rapid and industrial development of big cities, formation of new and suburban cities around big cities due to not following a suitable model and standard of urban, and regional development, has added to the problems and complexities of life in these cities . And the combination of these factors has drawn the attention of urban thinkers to the presentation of a new idea of development based on transportation-oriented development, the basic principles of which have been based on the development of public transportation and the mixing of uses. In this regard, the purpose of this study is to identify the key variables of transportation-based development of the extract derived from the foundation data method, based on which to identify the most effective and influential variables involved in this development. Accordingly, 10 key influential factors include comprehensive transportation studies, culture of using public transport, increasing land value, mixing land uses and stations, increasing household income, increasing employment and services, private sector cooperation, and Government and local people, space-driven car design, type and function of corridors and stations, transportation demand management 15 very influential key elements including spatial unity and balance of uses, comprehensive transportation studies, public safety, culture of using public transport, increasing the value of land, eco-based and humane design of places, non-motorized transportation, Transportation demand management, public and open spaces and recreation that have the most role in the future of TOD development in the city of Tabriz were selected.

The spatial structure of cities has changed a lot after technological changes and population growth and they have shifted from a monocentric compact city structure to an extended and scattered structure that poses many challenges and they have made human life and well-being difficult. Efforts to achieve a sustainable urban structure and form intensified after the second half of the twentieth century and solutions such as smart growth, urbanism, infill development, and a compact city are offered. Following the process of changing the structure of cities, the structure of polycentric city has become apparent in large cities. The formation of a polycentric structure in large cities is inevitable. Therefore, in order to increase sustainability in the urban form and achieve sustainable urban development, it is necessary to combine the polycentric city structure with previous approaches such as the compact city. The main purpose of the research is to explain theoretically the approach of polycentric compact city structure within the framework of urban planning theories. In this study, using the review method of studies related to urban sprawl, compact city and polycentric structure, the theoretical framework of combining compact and polycentric structures was explained. The research results suggest that a compact city with several indicators such as increasing density, strengthening public transport, increasing mixed land use, facilitating service delivery, reducing the distance between home and work, intensification and infill are proposed as the last structure to achieve sustainable urban development. Polycentric compact city approach takes advantage from the three structures of sprawl, compact city and polycentric city to achieve a sustainable city form

An emerging disease epidemic will affect the structure, planning, architecture, development, social behavior, economic activity, and management of cities and the world, and the persistence of coronary heart disease will have its own changes. Fundamental change in human biology will be effective in various dimensions, especially biological habitats and physical spaces, according to the history of infectious diseases in the world, especially cholera, plague, SARS, Ebola ... and theories such as space distribution. Thortsen Hogstrand and the Theory of Complexity and Chaos: Urban Systems; It is important to review the current situation considering the level of spread and spread of COVID-19 virus and its various effects on the biological geography of the country. In the present paper, based on conventional theories of medical geography and spatial effects of disease spread, as well as physical / structural physical effects in urban spaces and damages, and explaining futuristic approaches to analyzing the structure of urban structure and corona virus in Zabol and Assaluyeh The territorial geography of the country has been studied, which is the basis for examining borderline, industrialization, differences in migration, and the type of urban activities. In the end, while presenting analytical results to present different management approaches, especially community-based management approach to overcome the crisis and development behavior and activities (city and electronic and intelligent citizen) and management in the continuation of corona crisis management in society.

The goal of this study is to compile and present a model of transportation-based development in Tabriz, according to the macro structure of this city. Therefore, due to the lack of theoretical basis and indigenous models, researchers using the Grand Theory method, conceptualized this model based on the urban structure of Tabriz metropolis. Accordingly, in order to collect the required data, from 25 professors and experts in the field of urban transportation and development, in-depth interviews were conducted and 870 initial codes were obtained after screening and axial coding, the constructed categories included 6 main categories with 71 sub-categories. Hence, the causal factors are five categories "Lack of human-centered design in environmental design and disregard for the access of different sections of society to transportation centers" "The need for economic prosperity, competitiveness and savings due to the scale of urban areas" "Preparing a Dedicated Indigenous Plan and Developing a Sustainable Transport oriented development", "Urban Air Pollution and the Need for Refining" The basic concepts of transport oriented development were extracted. In terms of strategies, the first level categories “Creating Station Complexes and Mixing Uses” "Human-centered design with urban context consideration", "Using the latest transportation systems”, “Social Participation of Residents and Education", "Integrated Planning and Management System in Urban Transportation Governance" and "Beautifying and creating attractive urban spaces" were identified.

The present study was conducted to investigate the morphological properties of urban structure in Tabriz city. The main question of the research is whether the morphological properties of the structure of the city of Tabriz during the Qajar and Pahlavi periods have been effective? The complexity of the city formation process and the urban morphology structure of Tabriz city are the most important issues in this research. A look at the change in the structure and shape of cities clearly shows that our cities have not been taken into consideration as a serious study. The method of the present study is to use the "spatial syntax", which is a combination of descriptive and analytic rhooks. For analyzing the case study, the "spatial syntax" analytical morphological approach has been used to study the spatial structure of Tabriz city. The results of this study indicate that morphology is very effective in the configuration and structure of the city of Tabriz, and the fields of configuration are influenced by the urban spatial framework. Despite the rapid growth and development of the city, which today is found in many cities of Iran, especially Tabriz, by Urban planners have occurred, planners neglect development plans in relation to these properties. The main objective of this study is that the morphological characteristics of urban development programs (including the city of Tabriz) in each period are able to guide and control the forces that affect their performance

The texture and structure of today's cities are the result of a process which has been started since many years ago and it has been formed under the influence of different powers such as time and official, economic, political and social powers. These structure and texture are responsible for various historical courses and in fact the city is the emerging place of its inhabitants' need and will. The present study is an attempt to identify the process of formation and development of land in the years 1377 to 1393 Manjil and trends in the course of time. Descriptive research - analysis, in order to use the library and documentary studies to collect data and to extract the spectral classes of artificial neural network model and the changes in Idris and GIS software is used. The results of this study showed that the changes made by other applications to benefit the maximum rate of change of 202 hectares of land in 1377 to 405.3 hectares is of the year 1393. such as being located in Rasht- Qazvin communication road, the existence of Manjil dam and rivers with high water, garrison and wind powerhouse in this region are the most effective factors in formation and development of Manjil during history.

Throughout history, human beings have experienced the scenes of war and military adventures, and less land has survived from this pest. It is imperative and inevitable to strengthen the urban defense facilities, to set up risk aversion routes, to improve the status of services that are necessary at the time of defense. In this perspective, the human effort to survive has to be equipped with threats. The city is a dense human habitat, which, due to human presence, needs security and safety in all its physical, social, economic, and cultural dimensions. Based on the importance of the subject, the present study is based on the developmental-applied approach and a combination of research methods A descriptive-analytical study of the subject in Gomishan city has been analyzed by providing a city method and effective urban elements in the field of passive defense from the perspective of distance from the center of the city of Gomishan, which seeks to reduce the potential damage caused by human hazards. And natural in the city. The occurrence of natural and human events will cause heavy casualties in the cities. The issue of paying attention to the dimensions of harm and the disassembly of standards will inevitably make the city more comfortable from the perspective of passive defense in order to identify vulnerable elements with a passive defense approach. The city of Gomishan, according to previous studies in this field Neither hierarchical method was used. In this regard, after the identification of the criteria

Is a traditional Islamic dedication, according to which individuals and legal entities give part or all of their property to a state or private organization. This tradition has gained ground in Islamic ideology and has played a significant role in the development of Islamic cities. According to their worldview, The environment has always been interactive and influenced by each other. The effect of the worldview derived from religion on the creation of geographic landslides, especially in Islamic cities, has been of great importance. The waqf phenomenon as one of the forces of the city of Afarin and the facade of the Iranian-Islamic cities has had a great influence on shaping human artifacts and the formation of the physical spaces of cities. The endowment lands have also been influenced by their impact on the physical development of cities, as they have become out of the state during the physical development of the city (bayer, agriculture, gardens, etc.) and turned into urban texture. In this article, the city of Miami is considered as a small town in the province of Semnan, the main part of which is the endowment. By converting the city as the city center, the city quickly expanded and the lands of the endowment of agriculture changed their nature and turned into new urban landscapes. This paper tries to explore the role of waqf in shaping the general space of Islamic cities, especially the studied city, by relying on the field method and using the GIS technique.

The idea of creative city is a new and effective strategy to fundamental development of cities and improvement of environment and life quality of citizens. Such an idea can be recommended as a sustainable strategy for all metropolitans of the country for all eras. It would always be a changing idea according to its innovative and creative nature as well as new activities and functions of the cities. Since, the formation and growth of creative city strategy depends on the historical and cultural context of cities, the Iranian metropolitans, because of their diverse environments and cultures have a good potential to move towards global creative cities. The present study aimed at reviewing and monitoring the urban structure of eight metropolitans of Iran from a creative city strategy viewpoint. The applied model is an integrated model of VIKOR-AHP. Based on methodology and nature, the present research is a descriptive-analytic-comparative and based on aim, it is an applicable research. Findings of the present study indicate that according to five-fold urban creative structure; metropolitans of Tehran, Isfahan and Tabriz locate at the top of ranking scale with QIs of 0.11, 0.47 and 0.56, respectively. These figures are 0.77, 0.88 and 0.90 for the last three metropolitans of Karaj, Ahwaz, and Qom, respectively. The results show that based on socio-cultural and economic-functional structures of urban creativity, there is an unbalanced and unfair distribution among metropolitans in terms of economic, social and human resources. Also, unlike the availability of potentials and capacities of urban creativity indexes, most of them are not studied and haven’t yet been applied and executed.

In compare to driving, cycling and other transportation modes, people pay more attention to their surrounding and connect with the environment while they are walking. Therefore, urban elements closed to the walking paths should be considered as very important elements. Pedestrians, while talking and shopping, accept more impacts from the environment and its characters than any other occasions. Separating the pedestrian spaces from roadways and streets can decrease the effects of noise and environmental pollutions and finally improve the issue of commuting in the city. The present study focuses on designing and constructing five pedestrian zones in metropolitan of Tehran and investigates their functions on urban structure. In the present study, attention is paid to five pedestrian zones of Tehran metropolitan to investigate their effects on urban structure. To do this, the emphasis of the present study is on changes occurred in three criteria including: “urban commuting space”, “green space and environmental health”, and “urban identity”, after construction of the pedestrian zones. Main required data were collected from the questionnaire designed and completed by the local businessmen community and pedestrian zone users. Field and documentary data were used as well. The sample included 350 questionnaires selected by Cochran formula. The results indicated that the studied areas have already moved towards a homogeneous situation due to the construction of pedestrian zones. Also, in one-way analysis of variance, five pedestrian zones showed a significant difference of improvement among the criteria, which means that there is a functional difference between some of them.

Knowledge of temporal and spatial distribution of LST to determine the amount of earth energy is much applicable for climatology studies, examination of vegetation and also determination of urban structure. With respect to deriving LST from the studied area and its relationship with urban structure and vegetation, the present study illustrates that climate conditions specially wind, urban structure and vegetation are some of the effective factors on LST. According to the importance of heat islands at pixel scale in this study, and the ability of Newton Interpolation Polynomial in this respect, urban construction and vegetation are derived by the stated polynomial and their relationship with LST is examined and the areas concluding heat island are known. In this study, Newton Interpolation Polynomials have presented two equations of grade 7 by received DN from 200 points of image including vegetation and the areas with urban structure. The produced error rate from deriving vegetation by using Newton Interpolation Polynomial in 100 locations of the studied area and in urban construction are calculated as 10.1 and 12.02 respectively. It should be stated that no research with similar method has been done yet. The use of mathematical techniques in remote sensing and the amount of accuracy and ability of them are considered some of the main purposes in this research.

One of the unstable areas of urban development, particulary in developing countries, is formation of informal settlement in urban areas and its suburbs.While these settlements considered as basic elements of disorder for certain parts of the city, they cause social, economical and cultural losses to the hole body of the city. Right now informal settlement of Gonbad Kavous include Afghan Abad, Seid Abad, Badaljeh and Chai Bouii that intensified spatial inequalities in the city.This study was done to evaluate the role of informal settlements in urban fragmentation of Gonbad's spatial struture. The methodology used a combination of analytical methods-descriptive and statistical to analize the survey data and to make them closer to the research objectives. For data analysis and draw maps and graphs SPSS Excel, and GIS used.Finding showed that most land areas in question have no official municipality document that permits to make such a buildings. However these settlements use muniapal services and facilities like other parts of the city and continue to grow in the city but their turbulant and chaotic aspects, irregular network of passages and the lack of standards for spatial distribution, impose considerable social and economic problems to urban fragmentation of Gonbad Kavous.

In crisis management, Passive defense is one of the most important strategies. Safety and Security has long been considered in the planning and management of urban settlements. The most important steps in passive defense are integrated urban management, so it means adopting a system and design mechanisms to the approach followed in managing the city. What makes today's urban system very important is guiding management system, the ability of the internal flexibility of having the ability to apply principles and rules of external passive defense and responding to the expectations of the system, using the 'the opportunities enormous for the prevention of event and in other words "crisis management" and other profiles in this regime. Looking at the current political and military paradigm in urban areas seems to be in bed with a comprehensive approach, measures should be considered passive systems defense. This study, using descriptive and analytical approach utilizes a library and documents, After explaining the principles, objectives and considerations of passive defense and passive defense approach in urban areas, urban integrated management roles (Agents effective integration of urban management in policy and decision making) has been studied in urban passive defense. Urban management and accurate implementation of the national building regulations, construction, operation buildings, structural and non-structural building performance levels (service functionality, usability endlessly, life safety, collapse threshold), the building safe areas and shelters, buildings and vital key organizations, institutions and critical infrastructure industries and services (centers of decision-making, economic, military, vital centers, telecommunications, etc.), used relentlessly and reload buildings, type of function, comfort and urban structure factor influencing immune defense is. Focus on urban management and urban passive defense will cause the formation of passive defense, passive defense of the urban phenomenon of urban integrated management approach is based upon a dynamic and mobile. Passive defense operations aimed at continuing urban infrastructure needs vital public services and to facilitate the continuation of urban governance through the passive defense plans and reduce the vulnerability of critical facilities and sensitive installations and urban.Urban management created the urban with specific functions and body structure is tailored to the cultural needs of passive defends. The analysis of urban settlements based on the role of urban management in urban development and deployment of passive defense is in four contexts of the city's urban fabric, urban form and urban land use. Texture or shape and size of the town, and how to combine the smallest ingredients of the city in the resistance against the invasion of the city and other urban disasters can be effective. In the study of the role of city form Based on passive defense is thus a form of open against military threats are less vulnerable and changing them (supplies) in order to deceive the enemy is too much; While compact forms also lack of flexibility, have high vulnerability against military threats due to the accumulation of facilities, activities and population, so that there is no possibility of the rapid depletion of places and leaving the city. On the other hand open areas provides the possibility of temporary housing and further fundraising. In the discussion of city structure, emphasis on the spatial distribution of elements, combining elements and the city’s main function that make up the city structure, have the important role in the vulnerability of the city against different events.Result and The results show that City managers in the passive defense discussion should further effort in such a way In order to reduce the fatality and property and provide a quick improvement to normal levels in the city whenever it’s necessary. Obviously, in order to be prepared ahead of time, all necessary measures should be predicted. A t the end, suggestions and strategies about passive defense operations are presented based on urban management as follow:•Legislating laws, regulations and adequate protection needed for the passive defense in closets habitations;•Population’s logical development in large cities and industrial-economic activities;•Distribution and balance in the distribution of population centers;•Rural and urban areas’ balanced development;•Cities location in the territory with the purpose of establishing small and medium cities balanced distribution;•Choosing suitable locations for establishing activity centers;•Planning Before tragedy detection to reduce disasters and damages.

Despite the progress made in controlling air pollution in special places, urban areas are witnessing increasing environmental concerns for air pollution. Air quality is one of the major concerns in this area. The results of several studies in this regard indicate that the shape of the city and land use distribution determine the location of pollution sources and urban traffic patterns and affect the air quality of the city. In this paper, the potential effects of different land use patterns on the quality of the city's air are studied. Based on this, three hypothetical cities are considered based on each urban planning strategy, and with taking different land use patterns into account: from designing a large city, to a densely populated city with mixed land use. The MEMO / MARS average scale photochemical system has also been used to evaluate the air quality in each of the city's desirable structures. The results of this simulation show that densely populated cities with mixed land use have better air quality compared to distributed and networked cities.