Urban Planning
Leyla Mohammadi Kazemabadi; Sedigheh Lotfi; Amer Nikpour
Abstract
Today, air pollution of large cities has caused major crises in economic, social, environmental and physical development. So that this issue has become the first priority for urban planners in order to curb the problem. Investigating the effects of urban form on air quality has been considered in both ...
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Today, air pollution of large cities has caused major crises in economic, social, environmental and physical development. So that this issue has become the first priority for urban planners in order to curb the problem. Investigating the effects of urban form on air quality has been considered in both experimental and theoretical research. Arak metropolis is unhealthy especially for vulnerable groups due to the presence of many sources of air pollution in more than half of the days of the year and now it is one of the eight polluted cities in the country. The present study attempted to evaluate the impact of city form indicators on the pollution of the city. The research results showed; There has been a significant relationship between the city form index and the dependent variable (air pollution index) at the 95% level. So that the R2 value obtained from the spatial analysis of the city form index on SO2, showed 72% and the influence of the city form on the production of this pollutant. The intensity of the effect is greater in zones 2 and 3 of Arak city. This study explored the regional form and air pollution in a city where the concentration of industrial plants exacerbated environmental situation. So urban planning and policies should be formulated in accordance with the city function and industrial structure of Arak metropolis.
Urban Planning
Vahid Pasban; essa ebrahimzade; nader zali
Abstract
Knowledge-based urban development is a new model of development that, due to the reliance on knowledge as an endless source of energy, is considered a new approach to sustainable urban development that is formed, dynamic and fruitful in the context of cities. Due to its human nature, this type of development ...
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Knowledge-based urban development is a new model of development that, due to the reliance on knowledge as an endless source of energy, is considered a new approach to sustainable urban development that is formed, dynamic and fruitful in the context of cities. Due to its human nature, this type of development has spread rapidly in recent years in different countries, especially in big cities. In Iran, the city of Tehran, as the political, economic and demographic center of the country, has been one of the main platforms for the expansion of this type of development, which has housed various uses related to this area from 1389 to 1402. The main goal of this research is to understand the spatial distribution pattern of knowledge-based uses, to identify the central core of its formation and its development path at the level 22 districts of Tehran. the statistical and spatial information 2700 of the most important knowledge-based applications, which have been officially approved and registered by the office of the evaluation and recognition of competence of knowledge-based companies and institutions and are currently operating, have been used. The research method is descriptive and based on field and library studies. Spatial statistics tools available in GIS software environment were used for spatial analysis of knowledge-based uses. The results of the research indicated that the spatial distribution pattern of knowledge-based uses in the city of Tehran is a cluster, the highest density of which is in the north of Tehran and related to areas 2, 3 and 6, and the mainly southern areas of this city do not have a significant share of this type of uses. It was also found that the knowledge-based company . At the end suggestions were made for the quantitative and qualitative development of these uses and their optimal management.
Land use Planning
Mohsen Aghayari Hir; Masoumeh Alirezaei; Ali Zarei
Abstract
Today employment is one of the most important indicators of development in the countries. The analysis of the employment process and its structure across the country and its various areas requires accurate knowledge of the potentialities and their composition in the areas , to create balanced planning ...
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Today employment is one of the most important indicators of development in the countries. The analysis of the employment process and its structure across the country and its various areas requires accurate knowledge of the potentialities and their composition in the areas , to create balanced planning and employment in each area. This research is descriptive-analytic and aims to analyze the spatial distribution pattern of public and private sector employees in Iranian Townships. The statistical population consists of 397 Township all over of Iran, whose statistics and data were from the general census of population and housing in 2016. In this regard, after collecting the data and theoretical studies of public and private sector employees, the spatial automation correlation model based on the Moran's I index and Spatial Statistics Tools used for spatial and Hot Spot Analysis with Rending. The results of data analysis indicate that the distribution patterns of public and private sector employees in the Iranian Townships is clustered (was not distributed uniformly in the different Townships). Also, according to the analysis of Hot Spots, the distribution of employees in the public and private sectors was observed, with the highest in Tehran and centralized in a radius of approximately 300 km from it (although Tehran itself is confined with a 95% confidence level), and the rest of the Townships have more balanced distributions.
Climatology
mehran fatemi
Abstract
Introduction One of the climatic factors that occur during the cold period of the year in most parts of the country is the phenomenon of cold and glacial. Glacial begins when the temperature decreases and falls to a certain critical threshold, and with the effects it has on the earth's surface, it affects ...
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Introduction One of the climatic factors that occur during the cold period of the year in most parts of the country is the phenomenon of cold and glacial. Glacial begins when the temperature decreases and falls to a certain critical threshold, and with the effects it has on the earth's surface, it affects human life as well as construction activities and the yield of horticultural crops. This complication occurs on fruit trees in winter or early spring and causes a lot of damage. The glacial phenomenon not only endangers the natural life of all living things but also plays an important and decisive role in economic, environmental, and development matters such as roads, dams, and bridges. Glacial is very important in different stages of growth of agricultural and horticultural crops. Because if happen, it leads to production constraints. Glacial means zero temperatures or less than zero. Likewise in terms of technology for agriculture, in the event of thin ice crystals formation on the surfaces with sub-zero temperatures, the temperature of the surface air layer is reached above the dew point. In terms of farming meteorology, glacial is related to the low-temperature alteration which causes damage to the tissues of the plant. Glacials can be classified based on the severity, duration, and timing of occurrence. The classification based on the severity is the power of energy distribution components, which usually are measured based on average temperature, minimum, and average of zero and sub-zero and the lowest temperature of the minimums. The beginning and end dates of the glacial period are important from an agricultural point of view. The first glacial that occurs at the beginning of the glacial age is called early autumn glacial. In the autumn, glacial earlier than normal damage to actively growing branches. The last glacial that occurs at the end of the glacial period is called the late spring glacial. Fruit trees are increasingly susceptible to glacial damage from the time flower buds open, during flowering to the stage of small green fruit. To minimize glacial damage in susceptible areas, full knowledge of the frequency, persistence, and timing of glacial events is essential. To measure the risk of glacial, the recorded data of the minimum air temperature in meteorological stations are used. From a meteorological point of view, glacial occurs when the surface temperature and vegetation on it decrease to less than zero degrees Celsius. Materials and Methods In the current study, the minimum daily temperature statistics of 10 meteorological stations during a period of 17 years (2001-2018) have been used. To analyze the frequency of glacial occurrences for each year, the time of occurrence of the first early autumn glacial and the last late spring glacial was obtained. To convert the data into processable numbers based on the Julian days, each date is assigned a number. Based on this, the September 23 (1st of Mehr) was considered No. 1 and August 23 (31st of Shahrivar) in normal crop years was considered 365, and based on this, the number of the first glacial (early autumn cold) and the last glacial (late spring cold) were identified separately based on the stations during each crop year. Days, when the temperature was less than zero degrees Celsius, were extracted as glacial day and glacial at 5 weak temperature thresholds (temperature between zero to -1.9 degrees Celsius), mild (temperature between -1.9 to -3.9 ° C), moderate (temperature -4 to -5.9 ° C), severe (temperature between -6 to -9.9 ° C) and very severe (temperature -10 ° C and Less) was studied (adapted from Qalehri, 2018: 16). Using SPSS software, the best statistical sequence was obtained to calculate the start and end dates of glacial at different probability levels. The results indicated that most of the selected statistical series have a normal distribution. ArcGIS software was used to zoning the time of onset and end of glacial and to prepare many maps of glacial occurrence. Result and discussion The spatial distribution of the beginning of the glacial in the province follows the topographic state of the region and begins earlier in the southern and southeastern parts of the province. In some parts of the southern and southeastern regions, due to the high altitude of the region and being located in the mountainous areas, early autumn glacial occurs earlier, such as Garizat station, and occurs from November 6 to 12 (Aban 15 to 21). At Bafgh station, the beginning of autumn glacial occurs from November 13 to 19 (Aban 22 to 28). At Marvast, Meybod, and Abarkooh stations, the starting date of glacial is from November 20 to 25 (Aban 29 to Azar 4). The date of occurrence of early autumn glacial in Herat and Robat stations is November 26 to December 2 (5 to 11 Azar). The beginning date of glacial in Mehriz, Yazd, and Aqda stations is from December 3 to 9 (12-18 Azar). The beginning date of glacial based on different probabilities in Garizat stations with a probability of 30%, is November 3 (12 Aban), with a probability of 50% is November 6 (15 Aban), with a probability of 70%, November 9 (18 Aban), and with a probability of 90%, November 14 (Aban 23), as the earliest start date of autumn glacial. At Yazd station, with a probability of 30%, the first glacial has occurred on November 23 (2 Azar), with a probability of 50%, December 4 (Azar 13), with a probability of 70%, December 8 (Azar 17) and with a probability of 90% on December 24[Ma1] (3 Dey). The glacial at Bafgh station will end sooner on January 8 -17 (18-27 Bahman). Glacial in central and southern areas such as Mehriz, Yazd, Aqda, and Herat will end on February 18 to February 26 (Bahman 28 to Esfand 7). At Meybod, Abarkooh, and Robat Posht Badam stations, the end date of the glacial is February 27 to March 9 (Esfand 8-18). At Marvast station, the end of the glacial occurred on March 9-19 (Esfand 18-28). In the highlands, including Garizat station, the glacial starts earlier and ends later, so the glacial season is longer in these areas and the growing season is shorter, March 20-30 (Esfand 29 to Farvardin 10). The end date of glacial at Bafgh station with a probability of 30%, occurs at January 23 (Bahman 3), with a probability of 50%, February 12 (Bahman 23), with a probability of 70%, February 25 (Esfand 6) and with a probability of 90%, March 5 (Esfand 14). At Garizat station, the last glacial occurs with a probability of 30% on March 26, (Farvardin 6), with a probability of 50%, on March 29 (Farvardin 9), with a probability of 70% on March 31 (Farvardin 11), and with a probability of 90% on April 8 (Farvardin 19). The spatial distribution of the number of glacial days on the threshold zero shows that southeast areas including Garizat station have the most frosty days (1685 days) and Bafgh (483 days), Mehriz (484 days), Robate Posht Badam (518 days), Yazd (463 days) and Aqda (362 days) have the lowest number of glacial days during the statistical period (2001-2018). Spatial distribution of glacial occurrence at temperature thresholds of (0 and -1.9) have the highest number of glacials and the central and northern regions have the lowest number of glacials. Therefore, the Garizat station (467 days) has the highest amount of glacial, and Bafgh and Aqda stations have the lowest amount of glacial at this threshold. Likewise, on the threshold (-2 to -3.9), the southeastern and northwestern regions have the highest number of glacial and the northern and central regions have the lowest number of glacial. So, Garizat, Abarkooh, and Meybod stations have the highest amount of glacial and Mehriz, Yazd, Bafgh, Robat-e Posht Badam and Aqda stations have the lowest amount of glacial at this threshold. Conclusion Studies conducted between the start and end dates of glacial and the height of selected stations showed that there is a significant relationship between altitude and the date of occurrence of early autumn glacials. As altitude increases, glacial begins sooner. This fact designates that early autumn glacials happen earlier in the mountains than in the plains. The glacial onset map shows that in the plains of the province, the time of the first glacial is about a month later than the highlands of the province. In late spring glacials, the relationship between altitude and the end of the glacial is direct and by increasing the altitude, the date of the last spring glacial is delayed. This indicates that in the plains, the glacial period begins later and ends earlier, in other words, the glacial season in these areas is shorter and the growing season is longer. Conversely, in the highlands, the length of the glacial increases, and the length of growth decreases. This is significant from an agricultural point of view. Besides, the frequency of glacial in the southern and southeastern regions is higher than in the northern and northeastern regions, which has a significant relationship with altitude. The results of the analyzes showed that the Garizat station has the most glacial at all thresholds in the studied period. The lowest amount of glacial days is related to Bafgh, Aqda, and Mehriz stations in the temperature threshold (less than -10). The spatial distribution of the occurrence of glacial at different temperature thresholds also showed that in general, the southern and southeastern regions of the province have the highest frequency of this phenomenon, and as we move to the north of the province, the frequency of glacial decreases.
Climatology
Hossein Asakereh; Sepideh Barzaman; Ali shahbaee kotenaee
Abstract
Introduction
Rainfall is amongst the most important climatic elements with a lot of spatial and temporal changes; in contrast to the other climatic phenomena, rainfall features more notable movement complexity. The studies performed in this regard indicate that such a climatic element as rainfall features ...
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Introduction
Rainfall is amongst the most important climatic elements with a lot of spatial and temporal changes; in contrast to the other climatic phenomena, rainfall features more notable movement complexity. The studies performed in this regard indicate that such a climatic element as rainfall features a non-stationary behavior with a vast part of this non-stationariness being the result of the rainfall’s being influenced by the spatial properties and the complex pattern of the spatial organization causes the emergence of complex behaviors in the precipitations. The importance of the rainfall as the country’s water resource and the daily increasing reduction of the country’s water reservoirs demands the study of the rainfall’s behaviors. In the present study and by the assistance of the methods of spatial statistics, the spatial pattern of the spring rainfalls in the northwest of Iran will be elaborated.
Data and Method
The study area of the present study is the regions in the northwest of Iran (Azerbaijan-e-Gharbi, Azerbaijan-e-Sharghi, Ardabil, Kurdistan and Zanjan Provinces) and, to perform the study, use has been made of the monthly precipitation data acquired from 121 synoptic stations as well as climatological investigations and precipitation studies for a period between 1994 and 2014.
In order to perform the spatial analysis of the precipitations, use has been made of the digital map of the elevation in the environment of ArcGIS software for extracting slope and dip. In the next part and in order to analyse the spatial structure of the rainfall and investigate the degree of similarity between the data acquired from 121 station points, use has been made of the half pseudo-variance spatial correlation index. The Semivariogram has been estimated based on the arithmetic mean of the intervals.
In the present study, use was made of the longitude and latitude of every station point and the rainfall rates of every point for delineating the empirical Semivariogram for three months, namely April, May and June in the environment of Variowin Software, version 2.2; then, various theoretical models were estimated in terms of their goodness of fit and the exponential model was selected as the best model for every month.
In order to analyse the spatial factors influencing the spring rainfalls in the northwest, the balanced geographical regression model was estimated in terms of its goodness of fit with its output being the indicator or indicators influencing the occurrence of spring rainfalls according to the explanatory variables of slope, dip, elevation and latitude.
Results and Discussion
Following the investigation of the data related to April, it was made clear that the effect of the elevations on the rainfall variations is significant in this month in the entire parts of the region. The highest significant effect of the elevation has been in the central parts of the region for such a reason as the large density of the mountainous masses in this part and the passing of precipitation systems from these regions. In parts of the region’s north (north of Azerbaijan-e-Gharbi, Azerbaijan-e-Sharghi and Ardabil), the significance rate of elevation is reduced because these regions are plains and plateaus and lower in elevation than the other areas. Latitude has been found having a significant effect in the southwestern sections of the region (south of Azerbaijan-e-Gharbi, Kurdistan and Zanjan) and, in a more scattered manner, in the north of Urmia Lake and it seems that the reason for such a significance is the passing of the precipitation systems from the southern sections of the region.
As in April, the effect of the elevation on the rainfall has been also found significant in all the sections of the region in May. The highest rate of significance has been found centered in the western and central sections of the region (particularly in the central parts) and this is completely due to the existence of the mountainous air masses. Considering the gradual displacement of the western winds towards the northernmost parts of the region and the vertical irradiation of the sunlight onto the sun-facing foothills, the role of the elevations becomes more accentuated in the creation of convectional rainfalls and the regions with lower elevation would receive lower precipitations.
In June, as well, except the south-eastern section of the region (eastern half of Zanjan Province), the other regions have been found with the significant effect of elevation on the creation of rain. In this month, the conditions fit the occurrence of foothill convection in the studied area. The highest effect of the rising and falling lands on the creation of the rain has been evidenced for the north-western sections and this is in match with the path through which the western winds pass on these days; that is because the rain-causing winds are present in this section in this month and, considering the region’s elevations, cause the occurrence of rainfall. The effects of latitude in June is like those in May and the presence of the western winds and setting of the ground for the foothill convention causes rainfalls in the northern and central section of the study region.
Conclusion
Elevation has been found influential in the entire studied region on the rainfall because the high density of high grounds causes the ascension and condensation of the humid air that causes rainfall. Besides elevation, the dip also influences the rainfall in Kurdistan and south of Azerbaijan-e-Gharbi because the orientation of the foothills in this section sets the ground for the dynamic ascension of the humid air. In Ardabil and north of Azerbaijan-e-Sharghi, slope is also an effective factor. The high slope of these regions causes the acceleration of the humid air masses’ ascension. The effects of the latitude on rainfall during spring are different and mostly related to the presence of the western winds; in April in Kurdistan and in May and June in Azerbaijan-e-Sharghi, latitude has been found with the highest effect on the rainfall.
Urban Planning
Mohammad Hossein Khodabakhsh; parviz norouzi sani; karim hosseinzadeh dalir
Abstract
Introduction Smart growth in urbanization creates communities that are environmentally friendly, close to nature, and protect open spaces and valuable land, restoration of life, limiting the peripheral growth of the city, reducing personal reliance on cars, and so on. It helps communities to develop ...
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Introduction Smart growth in urbanization creates communities that are environmentally friendly, close to nature, and protect open spaces and valuable land, restoration of life, limiting the peripheral growth of the city, reducing personal reliance on cars, and so on. It helps communities to develop economies, create jobs, create strong and sustainable areas, and protect the health of the community and the family. The main objective of this research is to determine the level of smart growth indices in the regions of Tabriz city so that by identifying deficiencies and inequalities in the city, proper planning is planned to reduce the harmful effects of urban sprawl growth, such as traffic, pollution and reduction of injustice and Increase citizens' access. Materials and Methods In this research, smart growth indicators were divided into five major indicators, spatial parameters, housing, physical, and land use, environmental and access, and the amount of each was calculated at the level of ten regions of the city. Utilizing the multi-criteria decision-making model of Topsis and using the entropy-weighting model, we analyzed the spatial structure and the distribution of 71 criteria and ranking the different areas of Tabriz city. Tapsis, as a multi-indicator decision-making method, is a simple but efficient method of ranking-priority. In the TOPSIS method, the selected option should have the shortest distance from the ideal answer and the furthest distance from the most inefficient answer. Required data from different sources including Tabriz Municipality, Population and Housing Statistics of 2011 were obtained from Statistics Organization of Iran. In the following per capita indicators such as per capita urban services such as medical and educational, demographic, housing and biological parameters by different functions of the GIS, calculation and parameters of the topsis model and Shannon entropy weighing method in software Excel calculated and the value of tapis in each of the intelligent growth indices in Tabriz 10 regions was determined. Tabriz is one of the major cities in Iran and the capital of the East Azarbaijan province. The city, the third largest city in the country after Tehran and Mashhad, is the largest city in the northwestern region of Iran, and is the administrative, communications, commercial, political, industrial, cultural and military area of this region. The largest active heavy industry in the city includes a wide range of cement, textile, machinery and petrochemical industries. Discussion and Results The results showed that in the indicator of the combination of intelligent growth, the 9th and 2nd regions, with the value of tapes are 0.23 and 0.13, ranked first and second, and regions 3th and 1th with the value of 0.065 and 0.064 in the last rank they got. There is also a large difference between Tabriz regions in each of the parameters studied, such as women's employment, per capita services, type of residence and so on, also new urban areas have a better ranking than the old ones in intelligent growth indices. In the demographic index that included criteria such as female employment, literacy, immigrants, undergraduates, etc., Region 2, Rank 1 and Region 10 ranked the last. In the housing index, with criteria such as type of apartment housing, access to drinking water, sewage network, etc., the 5th and 7th conditions were better conditions, and the 4th and 10th regions did not have the proper conditions. In the access index with the criteria for the length and area of the network and transportation equipment, area 6 was ranked first and the 9th ranked. In the environmental Index with per capita parks, gardens, and agriculture and ..., the 9th region has the most and the 4th and 3rd areas have the lowest level. In the physical and land use index with the criteria such as per capita of health services, education, business, etc., net, the 9th zone had the highest rate and the 4th and 1th zone had the lowest. Finally, the combined index of all 71 criteria was considered, with the 9th ranked first and the 1st zone. In addition, the new urban areas of 9 were also better off than the older ones in terms of physical, demographic, biological and smart growth compilations. Conclusions The results of the research indicate that the indicators are inappropriate distribution in the city of Tabriz. Therefore, it is desirable to address the heterogeneous distribution and urban planning in the direction of the path of sustainable development and intelligent growth to be taken into consideration by officials and managers of the city. In the next research, it is suggested that some parameters such as per capita energy consumption, etc. that were not available in this study should not be considered. The data of this research was related to 2011, it is suggested that the results of this research be compared with the results of newer years in order to better reflect changes in the indicators of intelligent growth, especially in new areas such as Logic 9.
Urban Planning
sara mirzaei; Ali Zanghiabadi
Abstract
Introduction Existence of urban facilities and infrastructures is one of the effective factors in creating a happy city because without leisure spaces, public spaces where people are present and communication is increased and without cultural, educational, health, Sports facilities and services, ...
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Introduction Existence of urban facilities and infrastructures is one of the effective factors in creating a happy city because without leisure spaces, public spaces where people are present and communication is increased and without cultural, educational, health, Sports facilities and services, as the basic needs of the citizens, a happy city cannot be created. Tourism is also one of the most important areas of life that creates happiness and therefore overall life satisfaction. Therefore, in this study, an attempt is made to study the urban development indices related to tourism, to determine the status of Shiraz city in terms of these indices as effective indicators in creating a happy city. Shiraz Urban development has taken a linear form and the location of urban land use has been largely inappropriate and out of science. Shiraz, as the international tourism counter, the third shrine of Ahl al-Bayt, and as the third Iranian tourist city, needs dynamic, happy and vital citizens. Happy citizens have a better interaction with tourists and pilgrims, thereby increasing their satisfaction and attracting more tourists. Since the most important step in development planning as well as the realization of a happy city is to reduce imbalances and inequality, it will be possible to diagnosis the direction and type of development by determining the degree of development of each of the urban zones of Shiraz. Research questions are: 1. How is the development status of Shiraz zones in terms of the indicators that are effective in achieving the happy city? 2. What are the Priority variables affecting the balance of urban space?A happy city is a city with a high quality of life that is the result of meeting the needs of inhabitants in the best possible way and tourism is one of the most important areas of life that creates happiness and thus overall life satisfaction. In the new geography, justice and injustice cannot be confined to measuring economic inequalities, because space is a fundamental dimension of human society, and justice and injustice appear in space. Environmental justice is equality of people by their needs, abilities, efforts and impact on the production of society, so it is treated equally with all residents wherever they live. In urban planning, the physical-spatial distribution of urban elements and services is balanced and commensurate with the needs of citizens in each neighborhood and urban area. Harvey has identified need as the most important criterion of justice. The basic needs that are nowadays called essential services in urban planning and management can be the basis for measuring spatial justice. In order to achieve balance and equilibrium in each city, studies are needed to identify the current status of the city and to resolve failures, deprivation, and equitable distribution of facilities and services. This can be a step towards making the city happy. One of the most important theories that relates place to happiness is the need / livability theory. This theory considers happiness as a result of objective living conditions and meeting needs, and states that improved objective conditions such as urban and physical or economic conditions will lead to greater happiness. Many cities are not livable, because of city problems such as poverty and crime; but even successful cities are not livable in many ways. There is also lack of nature and recreational spaces in cities. Finally, most people cannot afford good housing, especially in the largest cities. Others live somewhere on the fringes and commute long hours. Commuting is the worst thing that reduces happiness. Large cities are less livable than smaller ones. More precisely, cities are less acceptable to most people; the rich can afford a good life in a city. Therefore, access to urban amenities and services is an important factor in the livability of cities and the happiness of citizens. In some cases, when basic needs are met, more money does not bring more happiness. Likewise, spending is a poor way to buy much more happiness. So how can lasting happiness be achieved? We need to buy experiences (e.g., holidays, recreation centers), not things (e.g., a luxury home or car). According to this theory, leisure spaces for people and tourists should be created and city facilities and infrastructures should be balanced at city level, especially in big cities. Methodology The present study is applied in terms of purpose and descriptive-analytical in terms of method. The Modified Numerical Taxonomy, WASPAS & MABAK methods were used for statistical analysis. Softwars used for data analysis included WASPAS, Taxonomy Solver, Excel and Arc GIS. In this study, urban land uses and services have been studied. Results & Discussion Based on the taxonomy analysis based on all the indices studied, it was found that none of the Shiraz zones were included in the developed level. Zones 8 & 1 are relatively developed. Zones 2, 3, 6 and 10 are in the third level, i.e. relatively deprived. Zones 4, 5, 7, 9 and 11 are in the lowest level and are among the deprived areas in terms of Indicators of urban development in related to tourism. In general, whether we move away from the city center, the zones become deprived. The zones around zone 8 are in the higher ranks, Then, the northern and southern zones are in the lower ranks, respectively. Conclusion The results showed that the Shiraz is not in a good condition in terms of physical characteristics of urban development and tourism infrastructure. Distributive justice for different land uses has not been regarded and most of them are concentrated in some urban zones. In fact, the lack of proper distribution of urban land uses and their concentration in some areas, especially in the central part of the city, has caused the zones to be in poor condition for all indicators and therefore none of the zones are in good condition.
Urban Planning
Mahsa Khosh Sima; Akbar Asgharei Zamani; shahrivar rostaei
Abstract
Introduction Considering the occurrence of scattered phenomena in the cities of Iran, the need for re-planning on land and housing in old textures has doubled. In fact, urban sprawling growth shows that the city's population growth is lower than the physical development of the city. Infill development ...
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Introduction Considering the occurrence of scattered phenomena in the cities of Iran, the need for re-planning on land and housing in old textures has doubled. In fact, urban sprawling growth shows that the city's population growth is lower than the physical development of the city. Infill development provides the best opportunity to maintain outdoor space and optimize the use of existing infrastructure. And at the same time, by promoting identity in areas where abandoned land is redeveloped, while providing housing, especially for the low income, can provide a model for urban development policies, especially in the housing sector. In general, issues such as the lack of land, the destruction of agricultural land and gardens due to the excessive spread of cities, the energy crisis, air pollution, informal settlements, the spread of cities on hazardous areas and faults and social anomalies, including issues Which make it imperative to pay attention to the infill and sustained development approach in the housing sector. Methodology Thus, in this study to investigate the role of infill development at renovation of Hokm Abad region of Tabriz old texture we applied spatial analysis. By calculating the indexes of infill development and old texture and corresponding maps, the final map of Infill development in the neighborhood with 95% confidence level came out. In addition, there are street network restrictions for infill development the relationship of which is also being approved through a map to exclude the respective problems, to come out of a state of exhaustion and regain its life as before. Result and discussion The overall results of this article suggest that: There is a high talent for the development of vacant land between existing parts (10% of the total land), which can be used for residential development by increasing the use of the density of buildings and increasing the use of lateral land uses of housing land use. Considering that neighborhood development has taken place at the Horizontal surface can Aggregate of fine-grained pieces, which accounts for over 50% of the area in question, the existing construction density can be increased. According to the buildings' life plans, the materials used, the quality of the building, most buildings need to be fully renovated and restored. In the new rebuilding, the principles and criteria for infill development should be considered as an example of the new urban planning principles, so be build new development based on the human scale, neighborhood the centerpiece with a distinctive center and edges with the ability to walk and bike ride. According to population density map 1.3, the population increase can be done in empty spaces and points marked on the population density map. Most of the transit network in the Hakam Abad district of Tabriz are organic and have not complied with the relevant rules and regulations that should be amended in new constructions Improved passageways and extensions of less than 6 meters, and attention should be paid to the rules for the extension of old texture tracks transit of at least 8 meters (Local access). Conclusion New towns are creating unbridled areas around the large cities and metropolitan regions witnessing, the sprawl development, the increase of urban costs, and finally untold magnitude of urban and urban management facing up complexity and trouble. And the creation of new towns cannot lead to the important goal of attracting new towns not only in the metropolis crowd overspill, but Some have not yet reached the stage of exploitation after some years. According to this issue the focus should be on the managers agenda and municipal officials rather than the urban sprawl development around the cities The spreading cause of fertile agricultural lands can blight available (old textures) usage, The decline of urban life in urban centers revives the past new towns are creating unbridled around the large cities. This matter causes sprawl development, the increase of urban costs, and finally untold magnitude of urban and urban management facing up complexity and trouble. And The creation of new towns cannot lead to the important goal of attracting new towns not only in the metropolis crowd overspill, but the operational out comes as well. According to this issue the focus should be on the managers agenda and municipal officials rather than the urban sprawl development around the cities the spreading cause of fertile agricultural lands can blight available (old textures) usage. Therefore, infill development and utilizing existing capacities can help solve problems both in terms of exhaustion and lack of services, and infrastructure and Superstructures. It can resolve to promote awkward urban development discipline.
Urban Planning
mojtaba rusta; zahra sahraeian; mojtaba rafiyan
Volume 22, Issue 65 , November 2018, , Pages 163-182
Abstract
In this study, the spatial analysis of building violations in the period 93-1388 was arranged. Research methods analytical and TvshAy it is applied. The required data were collected through documentary and field studies. shown, therefore, the sample size is calculated with Cochran formula and 210 ...
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In this study, the spatial analysis of building violations in the period 93-1388 was arranged. Research methods analytical and TvshAy it is applied. The required data were collected through documentary and field studies. shown, therefore, the sample size is calculated with Cochran formula and 210 people for your special infringement cases referred to the Commission NmvdhAnd the material 100 municipalities, were selected by simple random sampling and questionnaire Mhqq made, information is collected and analyzed. The results show that in the period studied, the building violations has been increasing. On the other hand, building violations in the North and East and West MhdvdhHay the outskirts of the city, including sectors that are in the path of urban development, urban and horizontal expansion led to PrakndhRvyy. Also, the opinions issued by the Commission of Article 100 of the present study indicate that the most verdict in the municipal building violations, fines (up 80 percent) were by offenders.
Urban Planning
Ali Alikhah
Abstract
Settlements physical and functional affecting from the natural environment is obvious and undeniable. In this regard numerous factors play a role and by that location, building, physical development, population absorption and … in human settlements formed differently. This study aimed to analyze ...
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Settlements physical and functional affecting from the natural environment is obvious and undeniable. In this regard numerous factors play a role and by that location, building, physical development, population absorption and … in human settlements formed differently. This study aimed to analyze the spatial pattern of settlement in Gilan Province, has been formed under the influence of natural factors. In this way the main questions facing the study, is the effect of natural factors on the spatial pattern of settlement in the province. Gilan settlement system based on the last census has 2990 points, that all of them were considered in this research. The research method is descriptive- analytic and in it the documentary and spatial statistical analysis in geographic information system with the spatial autocorrelation analysis based on Moran's I index were used. The results indicate that although the settlements of Gilan province in terms of population is not concentrated but from all variables point of view (height, slope, slope aspect, precipitation, temperature, evapotranspiration, distance from surface water and natural vegetation) high clustering were observed in the distribution of the settlements in the province and spatial correlation of all the variables with the spatial distribution pattern were statistically significant
Mohammadreza Pourmohammadi; Mohammadreza Karami
Volume 18, Issue 50 , February 2015, , Pages 55-88
Abstract
Evaluation of the vulnerability is one of the most important challenges facing metropolises in Iran. Sensitivity of the issue is duplicated when the city is not only timeworn and includes squatter areas, but also is exposed to natural disasters such as earthquake and flood. Zoning the risk of earthquake ...
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Evaluation of the vulnerability is one of the most important challenges facing metropolises in Iran. Sensitivity of the issue is duplicated when the city is not only timeworn and includes squatter areas, but also is exposed to natural disasters such as earthquake and flood. Zoning the risk of earthquake and its modeling by advanced techniques regarding the vulnerability level of cities is inevitable. In Tabriz, diversity of urban textures, proximity to fault lines and lack of precision and revision on the subject, increases the vulnerabilit of such textures besides squatter textures. This project studies the municipal areas (1 and 5) in Tabriz city, regarding the nature of earthquake and its relation with four factors: population density, building density, quality of buildings and types of materials. Furthermore, the relation of vulnerability due to earthquake has been studied and modeled taking the advantage of the GIS robust technique with integrating Kernel Density Estimation model (KDE) and Analytical Hierarchy Possess model (AHP) in order to determine the vulnerable areas more precisely with an emphasis on residential application.
Mohammadrahim Rahnema; Mostafa Amirfakhriyan
Volume 16, Issue 41 , November 2012, , Pages 129-152
Abstract
Travel agencies have an important role in the development of the tourism. Now the important parts of the development of tourism are related to travel agencies activities. Due to this, in our country so far, few studies have been done in this regard. Mashhad metropolitan, with 20 million pilgrims in each ...
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Travel agencies have an important role in the development of the tourism. Now the important parts of the development of tourism are related to travel agencies activities. Due to this, in our country so far, few studies have been done in this regard. Mashhad metropolitan, with 20 million pilgrims in each year is a sample. There are 222 travel agencies. Factors affecting the travel agencies distribution were done by the spatial distribution models, such as center median, standard distance, Moran index of spatial autocorrelation and regression. Results show that: Level development zone, near the railway station, bus terminal and the holy shrine are important factor in distribution of travel agencies. Coefficient calculated for these variables are set equal to 0.78 (R2 = 0.78).
