جستجوی مقالات مرتبط با کلیدواژه « decision » در نشریات گروه « جغرافیا »

The present research, which deals with the behavioral geography is objective in terms of its purpose and is descriptive-analytical in terms of its nature and method and analyzes the factors affecting the decision to migrate the villagers. The statistical population includes households living in Sina district in Varzeqan County and the sample size consists of 300 people where sampling is accomplished in a simple random manner. Likewise, validity of the questionnaire is examined based on formal validity and its reliability with Gutman coefficient (split half) was 0.88. The analysis of this research, which was based on SEM, was considered using LISREL software. Therefore, a number of behavioral factors in the process of decision making of migration of the rural were drawn and tested as a conceptual model based on theoretical foundations and the study of previous studies. The results of fitting goodness assessment illustrates that the proposed model is compatible with the experimental data. Thus, using the drawn model was considered analyzing effective factors. The factor load test shows that the individual perception of environmental quality has the highest impact on the individual as a decision-making factor for migrating from the Rural. Finally, the results of the study about covariance matrix of independent variables indicate a major level of significance in the estimation of the Path Analysis of the studied variables. Hence, the designed model can be considered to be a useful tool in analyzing the rural migration decision making on the territory of behavioral geography.

Infill development is one of the main approaches against of Distribution and horizontal growth cities phenomenon. One of the main areas that the urban infill development to attention is Vacant and unused lands in urban areas .attention to High capacity of vacant lands in city can be Provide Our Way In achieving sustainable urban. Therefore, in this research, Purpose, is Evaluation of vacant lands for infill development based on the variables affecting urban development in Ahvaz city. This study in terms of goal is an applied and in terms of research method is descriptive – analytical. Initially was chosen Suitable criteria topic. In ArcGIS Suitable layers using fuzzy normalization and suitable functions have been normalized.in Order to weight allocation to the layers Dematel technique and network analysis process (anp) was used. In this way, relationship between the criteria calculate by Dematel technique by using of Excel and Matlab. Then after determining the criteria relationship, the weight of criteria calculate by ANP and multiplied in layers and For Conflation maps used Vikor in geographical information system (GIS) context and final map Prioritize vacant lands for infill development presented. First priority vacant lands with an area of 368 hectares and the priorities of the second to fifth, respectively is 1659 hectares, 1470 hectares, 530 hectares and 1745 hectares. Prioritization vacant lands in seven regions of Ahvaz city Based on the area is respectively that in the one region first priority 16 hectares, in two region first priority 25 hectares, in the three region first priority124 hectares, In four region, first priority 93 hectares, in the six region 99 hectares, in the seven region, first priority 99 hectares in the eight region, the first priority is 148 hectares.

As the recognition of phenomena in the surrounding world, expression of natural-humanistic realities, and spatial systems are based on a strong theoretical foundation, the use of quantitative methods and models is regarded as an essential and powerful tool for the better identification of them. Today, the use of numerical and statistical techniques has become customary in the research domain of these sciences. This study is an attempt to explain the advantages of using Weighted Aggregated Sum Product Assessment integrated decision-making technique. WASPAS is a very precise technique whose decision matrix is based on objective data and has applications in decision-making on critical issues. Therefore, this study has put its emphasis on prioritization of tourism-targeted villages by means of WASPAS technique. For this reason, selection criteria are based on spatial indexes. A descriptiveanalytic method is employed for the conduct of this research. To this end, studies pertinent to the specialized field of tourism were used in order to identify the indexes of tourism-targeted villages. Accordingly, 13 criteria and48 sub-criteria were identified and were used as a foundation for data collection on rural tourism. The centrality index was used to calculate the score of each criterion each of which consists of a number of sub-criteria. In fact, the score of each criterion was calculated according to its sub-criteria. Thereafter, the evaluation model of WASPAS was used to prioritize tourist villages. The results of this study show that Darb Gonad, Bisheh, and Valiasr are the villages with the highest capability for the development of and investment in tourism activities. In contrast, Scholl Abad, Heshmat Abad, and Vanaii are equipped with a relatively lower potential for development in this regard. In fact, the output of the model matches the existing reality well.

Spatial - physical growth of cities makes many problems such as waste of energy, destruction of environment, an increase of urban infrastructure and service expenses, a change of agriculture land application , air and soil pollution, lack of security for the residents’ demands etc. Some proposed approaches to criticizing these problems are smart growth, growth mangement, new urbanism, campact city and urban infill development. Infill development is trying to utilize vacant lands, rehabilitation and renovation of old textures, redevelopment and applying the unused capacity of lands in the city. The emergence of some problems due to physical-spatial growth of Ahvaz shifts the attention to critical approaches against horizontal distribution. Some of these problems are the low level of quality of life and human development indicators, lack of full enjoyment of Ahvaz residents from residential units, vast old texture in the middle of the city with urgent need for redevelopment and reorganization, concentration of about 40 percent of the city population in unsustainable areas of the city etc. The present study aims at identifying the redevelopment capacities of physical texture of Ahvaz regarding both the effective factors on urban development and prioritizing the identified textures for redevelopment.
Materials and The Research aims at identifying the lands and redevelopment capacities by applying the hybrid decision making models in GIS. As the first step, the exact definition of the problem is provided. Then, according to research goals, at first, the factors and criteria were collected through literature review and interviews with the experts. Since the relationship between the criteria and their effects was different from the goal of the study, two questionnaires called Dematel and ANP were applied. As the first step, Dematel questionnaire was given to the experts and elites. When the relationships among the criteria were determined and drawn based on the Dematel output, the second questionnaire was given to decision makers to calculate the weight and their importance. Generally, when the problem is identified in the spatial multi-criteria analysis, it is necessary to show each criterion in the form of a layer in GIS-based databases. Therefore, the criterion maps were prepared in the environment of ARC GIS software. Moreover, the fuzzy function was applied to standardize the layers in the environment of ARC GIS. The fuzzy function, incremental linear function and other layers are standardized in a way that two different functions are standardized by positive and negative layers. In the final step, using GIS capabilities, MCDM method and VIKOR technique were used to combine the layers and identify lands and redevelopment potential respectively.
The final prioritize map of physical texture is presented in five classes to reach infill development. The first priority with the area 26,646,871.04 m2 includes desolated, industrial, military and sports applications, urban facilities and urban equipment which are dispersed throughout the city. Moreover, except for the fourth priority which is located in the central part of the city, other priorities are dispersed throughout the city; like the first priority.
This research considers the infill development of Ahvaz, for this city is dealing with many problems due to the sprawl problem. From the infill development strategies, the strategy of physical texture redevelopment is chosen as the main research strategy. Infill development has been studied in previous research in different aspect like the physical criteria (materials, building life, building quality etc.), environmental (slope, soil type and erosion), accessibility (access to service, and various necessary infrastructure including water network, sewerage, electricity, gas, etc.) buffer and limitations (river, industrial usage, etc.). In this research, in addition to the aforesaid criteria, education and employment in infill development debate are used. The employment criterion shows the ability of the owner resident to participate in development, while education criterion indicates the people's participation due to their awareness. Redevelopment and infill development consist of different strategies such as incompatible transmission of land application, using the vacant lands, rehabilitation and renovation of old textures and slums, etc. The target redevelopments of this research are the textures and lots having access to service applications, observing the restrictions and buffers, and having high potential level in terms of participation.
The cities of Iran are facing the problems like boundless spread of city, the destruction of agricultural lands and environmental problems due to lack of careful planning about land application which lead to not only inefficient application of the capabilities and available potentials but also improper observation of the population pattern settlement. Weakened physical conditions of the neighborhoods and the dissatisfactions can eventually lead to the loss of neighborhoods, cities and finally whole metropolitan area. In this condition, the urban infill development makes the lands and old buildings ready for re-application, help to the development of the city perspective and life environment, increase the opportunity of buying house, and help to attract and retain the residents with various incomes. Therefore the quality of life in old neighborhoods is enhanced. The present study aims at identifying the infill redevelopment potential of physical texture in Ahvaz. At the end of research, the final map made in the classified physical texture and infill development priorities are presented. Besides, the applications are prioritized based on the priority (according to the pixel value) to infill development. First priority includes desolate, industrial, military, sports and urban infrastructure, and urban equipment.