جستجوی مقالات مرتبط با کلیدواژه "spatial distribution" در نشریات گروه "مدیریت"

Cities are required to meet the needs of their citizens. In the way of encountering the needs of damage, natural and unnatural damage in the city environment makes this process more complicated and on the other hand it can show. The issue of passive defense in such cases where the saving of human lives is a key factor, provides the conditions for organizing the city and resolving the issues. Therefore, every fire station must be able to send its rescue forces to the scene of the incident within 5 minutes from the time the fire is detected until it is contained. Therefore, the correct distribution of fire stations in the city is one of the essential and key issues in advanced cities. In this regard, the present research has investigated the spatial distribution of fire stations in Tabriz city in critical conditions. In other words, the aim of this article is to analyze the optimal distribution of fire stations in Tabriz city with the passive defense approach.

According to the purpose of the research, the descriptive-analytical research method and the use of library studies have been used to prepare the questionnaire. In this research, Delphi technique as well as Analytical Hierarchical Process (AHP) method and network analysis have been used to evaluate the importance of information layers. The effective layers in locating suitable areas for firefighting centers have been combined and overlapped. In this regard, proximity to compatible uses, distance from incompatible uses, population density, access, land price and functional radius of fire stations have been considered in the context of geographic information system. The criteria for locating fire stations have been selected by studying the literature, and after checking the effective criteria, its application has been evaluated in a case study.

The population factor should be considered as one of the important components in the construction of fire stations. Therefore, the areas with high population density are considered to be suitable areas for building fire stations. On the other hand, factors such as proximity to main roads, land price, coverage radius of existing fire stations, proximity to residential, commercial, medium and small sports areas, proximity to gas stations and distance from passenger terminal, religious centers, health care centers and big sport complexes are among the important factors in locating and building fire stations. According to the network analysis, the 5-minute time coverage of existing fire stations in Tabriz city is 55%, and therefore, the lack of this essential use in the city can pointed out.

Based on the results of the analysis, three priorities and necessities were identified and introduced according to the existing conditions in order to build new fire station locations. Thus, the northern and northwestern parts of Tabriz city were evaluated as suitable parts, the central parts of the city relatively unsuitable and the southeastern parts of Tabriz unsuitable for building fire stations.

Infrastructure is one of the basic requirements for the development and development of tourism activities in different locations. The aim of the present study was to recognize the spatial distribution and ranking of the relative efficiency of tourism infrastructure in Zanjan province.From among the provincial cities, none of the cities has a favorable situation. The cities of Zanjan, Abhar andو Khoram Darreh are moderate, and the za komekKhodabandeh, Tarom and Soltanieh at low levels and in the moon kk and Eidrud are lacking in efficiency. At the level of the studied indices, the highest level of efficiency in the transport, efficiency in the transport, accommodation, cultural, religious, health and nutrition indexes related to Zanjan city, is in the recreational index of Khoramdereh city and in the index of nutrition related to Tarom city.The cities of Zanjan, Abhar and Khoram Darreh are moderate, Khodabandeh, Tarom and Soltanieh at low levels and in the moon and Eidrud are lacking in efficiency. At the level of the studied indices, the highest level of efficiency in the transport, accommodation, cultural, religious, health and nutrition indexes related to Zanjan city, is in the recreational index of Khoramdereh city and in the index of nutrition related to Tarom city.Infrastructurestudy was to recognize the spatial distribution and ranking of the relative efficiency of tourism infrastructure in Zanjan province.From among the provincial cities, none of the cities has a favorable situation.

 It is obvious that space distribution studies the how, why and stating the dispersion of the social and economic phenomena in the form of place, i.e. the position of these phenomena. How is the way of human phenomena dispersion and what differences dose the environment provide? Why is position of the human phenomena different in various places? So, it is possible to observe different dispersion of one phenomenon in mountain and in plain. The same is true about local games. They differ in various geographical areas. In this research, we attempt to answer this critical question: Do the geographical and spatial factors lead to diversity and dispersion of the indigenous games in various rural areas? Also we attempt to analyze the relation between environment stability and the kind of indigenous game. This paper is an applied research and the method is descriptive-analytic one. Data collection method is documental and survey. The results of the surveys through recognition and ranking those villages which have indigenous and local games in Khoresh Rostam region; also the social sustainability index for 90 individuals (over 40) in the villages show that the geographical factors affected severely on the villages' local games. Also they revealed that indigenous games (traditional and modern) have affected the villages' social sustainability i.e. traditional games are more effective than modern games on this concern.

Urban tourism in order to maximize attain to inbound tourismon the one hand and increase their durability on the other hand needs to prerequisites. Among the most important of these prerequisites is the existence of tourist attractions as well as a variety of residential centers. In addition to the presence of these centers in cities, the location, space distribution and direction of distribution are important for them, which need to be studied.  Therefore, this study analyzing the spatial distribution of residential centers including hotels, guesthouses and passenger housing along with the tourist attractions of Rasht. The research method is descriptive-analytic. For analyzing the findings, the Average nearest neighbor, multi-distance spatial cluster analysis, Mean centre and standard deviational ellipse method have been used. The results of the research indicate that, based on the average nearest neighbor, the distribution pattern of residential units in general and passenger housing is clustered and the distribution of hotels is dispersed. Also, based on multi-distance spatial cluster analysis, distribution of tourist attractions is cluster, passenger housing is cluster and hotels and guesthouses are dispersed in Rasht. Also, in the case of residential centers to consider Similarly, the distribution is northeast / south-east. In general, the need for coordinated development of residential centers in Rasht is quite tangible. It seems that the custodians of residential centers in Rasht need to develop a coordinated and predetermined plan for the development of such centers.

From environmental criminologists prospective, the place of crime occurrence and their place dependency structure are among the most important constituents of crimes. Therefore the analysis of such data required criminological knowledge and also use of spatial statistics methods in field of crime data. By the help of spatial statistics, we can establish relation between different quantity of a variant with respect to distance and the direction of their alignments to each other. By recognition of models dominating on place of crime occurrence, steps can be taken to improve the main tasks of police. Spatial statistics methods in many fields have enjoyed a special position and in each topic in addition to analytical methods, special software for that topic is designed. In this research first statistical methods related to spatial analysis of reviewed crime data and in continuation software that can be used in statistical analysis of crime such as crime stat, Arc GIS and finally geoR are introduced.

Recognizing critical crash hot spots is a key role in decreasing accident probability patterns and has an important place in using acceptable methods on street networks and junctions. For this purpose, determining efficient criteria, individually and socially, based on related mathematical operators can identify and calculate different influence values for each criterion. As a consequence, various theoretical and practical models can be guarantee safety and improve transporting conditions of roads networks. From this, the main accident factors can biologically be identified at cross roads. In this paper, GIS capabilities are used to estimate and predict the probability of crash spots at cross roads and consider safety guarantees in the transportation system of Mashhad. Statistical data obtained from traffic observations of the transportation network of Mashhad are collected in question forms and prepared using mathematical and statistical processes such as density estimation and sample interpolation methods, based on the predefined standards and rules. In addition, probability values of accidents are evaluated and assessed using an integrated pattern of accident estimation based on expert opinions of each junction. Finally, Simple overlay, IDW and Kriging (with different neighbor points) are compared to recode values of crash numbers, and after producing the probability map of accidents, modeling validation can be determined in the control points. Presenting the Kriging method using 7 neighbors can improve the transportation system and will present an efficient solution for managing and controlling accidents.