فصلنامه نقش جهان - مطالعات نظری و فناوری های نوین معماری و شهرسازی
سال ششم شماره 3 (پیاپی 15، پاییز 1395)

Horizontal development of the cities has resulted in much destruction environmentally and economically. The building’s façade acts as a barrier between exterior and interior climatic conditions. There are various methods for improving the energy performance of the building. One of these solutions is the ventilated facades. Open joint ventilated façade (OJVF) is a group of ventilated facades in which the exterior coating material (metallic, ceramic, stone or composite) is arranged in slabs separated by open joints that enable exterior air to enter and leave the cavity all along the wall. This ventilation leads to decreasing moisture and problems of condensation and ensure the health of the wall. In addition to aesthetic and constructive reasons, the main interest in open joint ventilated facades is their ability to reduce cooling thermal loads. This is achieved by the buoyancy effect induced by solar radiation inside the ventilated cavity, where the air can enter or leave freely through the joints. The OJVF is usually classified among the “light weight” or “Advanced Integrated Facades”. They are replacing the conventional facade in many new buildings and particularly in the refurbishment of old ones.
In light weight facades, the exterior light coating material is hanged over the interior wall (insulation, perforated brick or concrete, finish) by means of a metallic-frame structure or metallic bindings, leaving an air gap. The air chamber height can be the whole building height. The main difference between the OJVF and other advanced facades is that, as a rule, the ventilated air chamber is only open to the exterior at the top and at the bottom while, in the OJVF, the exterior coating is placed in an arrangement of tiles or slabs and a series of thin gaps (joints) shaped from slab to slab.
The improved thermal performance of the OJVF under radiation conditions relies on buoyancy: The slabs of the exterior coating are heated up and produce an ascending mass flow of air (by natural convection) that enters and leaves the cavity through the joints. This flow removes part of the heat loads. This phenomenon takes also place if the openings are only at the bottom and top of the facade, but the efficiency is not as high due to the reduced flow and the higher temperatures attained at the upper section of the air gap.
The main question is the effect of the open joints on the thermal performance of the façade in the various times of the year. The main objective of this work is to investigate the thermal and fluid dynamic phenomena taking place in a typical OJVF under solar radiation, and to appoint a methodology to quantify the energy savings produced by an OJVF in contrast to a conventional facade.
The determination of the linked thermal and fluid dynamic behaviour of the flow in the open joint air gap is quite a challenge, compared to the sealed cavity or even the top and bottom ventilated facades. The inlet and outlet flow through the joints all along the facade faces the analytical methods, making compulsory the use of CFD tools to obtain a detailed model. To achieve this aim, both of the open joint and the sealed facade have been simulated in the “Fluent” software.
Two series of tests have been carried out for both OJVF and sealed cavity facade. The first ones are steady state simulations directed to understand the phenomena involved, and the second ones are quasi-steady (unsteady or transient) state simulations to compare the energy performance of both systems. For the first group, two temperature conditions were selected, representing summer (T_room=24℃, T_ext = 30℃) and winter (T_room=24℃, T_ext = 8℃) weather. The (absorbed) solar radiation ranges from 0 to 800 W/m2. The radiation values above 400 W/m2 are high for summer, but not for winter, because the sun inclination is lower. The second group comprises two sets of simulations with the exterior temperature and the solar radiation varying hourly: one for a typical day of summer and another for a typical day of winter. The data used for simulations is produced by the Energyplus software.
Due to the extent of the subject, the study has been developed over a particular set of comparable geometries, and with specific climatic conditions; however, special care has been taken to avoid assumptions limiting its application.The OJVF simulated geometry comprises of four cement board tiles and five joints. Each slab is 70 cm that are separated by joints of 8 mm. The exterior coating layer is separated 0.05 m from the massive wall by the ventilated air cavity. The massive wall is composed of gypsum, a brick layer and exterior insulation with a total thickness of 21 cm. To study the heat transfer problem in the case of a conventional wall, a 3D model with the same dimensions has been created to simulate the convective loop inside the sealed air cavity. The only difference with respect to the OJVF model relies in the exterior coating which is continuous (without joints between slabs).
The CFD model developed to simulate a typical OJVF has enabled a better understanding of the ventilation effect induced by the solar radiation in the air gap of the facade. Velocity profiles, together with temperature and heat flux distributions have been compared with those obtained in a conventional sealed cavity facade.
Velocity profiles show that the air flow in the OJVF is ascending in the whole width and does not form a convective loop as in the sealed cavity facade. Moreover, the profiles show much higher velocity values in the case of OJVF. These two characteristics favour the heat removal from the cavity walls, which is one of the most claimed advantages of OJVF under radiation conditions. The air temperature in the cavity remains lower than in the conventional wall, and the heat transferred to the room is therefore lower.
The model has been also used to compare the thermal performance of both facades for the specific climatic conditions of Tehran and Yazd. The results of the simulations conclude that open-joint ventilated façade _in Tehran and Yazd city which are selected with respect to their solar radiation- can help to achieve substantial energy saving. Therefore using the OJVF in the south facade of the building in the aforementioned climates, considering their simple technology, is more suitable than conventional sealed facades.
The comparison of the energy performance of the specific OJVF and conventional façade analysed in this article shows that the open joint façade results in %20.5 energy saving for Tehran and %12 for Yazd through the south facade At this point, it is not possible to give a definite criterion, because it is still necessary to evaluate the overall year performance of the specific OJVF geometry for each climate conditions, taking into account building costs and the price of the energy used for heating and cooling. Nevertheless, the data found in this study show that the OJVF could be a more energy efficient system than the conventional sealed facade, and help to reduce the cooling needs, mainly for south orientations in places with hot summers and mild winters.

Horizontal development of the cities has resulted in much destruction environmentally and economically. Two of the major consequences of such destruction is imbalanced development and inappropriate application of lands in the cities that are referred brownfield in this article. Brownfield in the urban planning jargon, a brownfield site (or simply a brownfield), is a type of land formerly used for industrial purposes or some commercial applications. The brownfield concept was first introduced by the British government and was used in accordance with the sustainable development policies which is mostly focused on the environmentally polluted lands. In the last two decades, redevelopment policies of brownfield as a crucial practical solution for preventing disperse growth of cities and also supporting the concentrated growth of cities have been attracted more attention. The main features of the brownfields are: -1 Pollution: each land in which an environmental complication has the occurrence probability. -2 Empty and leaved without using and in general lands and properties that their activities have been closed or not been used anymore. Of course, some of the terms that must be separated from the brownfield areas are: greenfields and grayfields.
Greenfields are those lands that previously has not been developed and often are rural or suburban. These green sites are located in the edge of small or large cities and have better accessibility and more palatability with additional space for future development.
The term grayfield, was defined in 1998 by new urbanism congress. Unlike the famous terms of greenfields (the rural undeveloped) and brownfields (polluted urban sites), the gray lands are called to the large undeveloped sites that have good reasons for redevelopment. The term of grayfield can be used to describe any kind of redevelopment that significantly is not polluted. But regarding the importance of environmental protection and sustainable development and realization their policies, it is essential to eliminate or reduce the environmental pollutions purposefully to achieve the redevelopment of brownfields.
For the sake of importance and novelty of the subject, redevelopment of Brownfield with the objective of efficient applications of lands in cities and reducing the environmental pollution and also improving the social-economical context of these fields is the subject of this article. Brownfield of Kan stream in Tehran was selected as the case study. The field was selected as it is one of the few major barren Brownfield in Tehran. They are not only in the leaved brownfields but also regarding the river-valley nature, the fields has specific ecological and tourism features. Unfortunately, due to lack of planning and management, these brownfields have been converted to the locations of rubbish depot and uncontrolled polluted waters and therefore infected with the environmental pollution. The methodology of this article is descriptiveanalytical using library studies. After studying the theoretical framework, defining features of brownfield, literature review, objectives and the importance and of these fields, the redevelopment process of Kan stream Brownfield are presented. Finally, the conclusion and analysis of the actions are conducted in redevelopment of brownfield with social, economical and tourism approach.
After comprehensive studies, in order to determine the kind of landuses in Kan brownfields, establishing a national and even an international performance scale park is designated as the planning vision. In this context, the objectives of the redevelopment planning process Kan brownfield included: creating a touristic space to enhance the region›s tourism identity, planning with emphasis on providing recreational services for all social classes, such as children, elderly people and women and people with disabilities (all divisions with regard to sex, age and physical aspects), strengthening of the relationship between people and nature and to replacing normal social activities and improvement environmental conditions; Developing ecotourism in urban environment regarding and it s benefits beyond natural landscapes, enhancing green space for per capita in Tehran city and attainment to the standard limits for environment qualities by using marginal lands and rivers sanctums.steel plates. In addition these bars are pre- tensioned by means of cable passing through them in order to behave properly to the applied forces.
The way that the bars are moved through the retraction process and the function of the building effects on the selection of the covering materials. In this structure, as the distance between the bars is changed during the deployment process it is required to use a flexible but strong material that can resist repeated retraction. Therefore, a flexible membrane that is strong enough during movement and has a proper foldability such as ETFE is one of the best alternatives for covering the roof. ETFE is also able to penetrate enough light inside of the building when the roof is in fully closed position and this in turn reduce the energy required for running the building.
The membrane is also attached to the bars though the slots that have already been created during fabrication and is fasted by means of pinned curve plate. This is also worth to mention that in this structure, the placement of the moveable components underneath the covering material support the whole structure even in severe weather conditions. Therefore, this increase the life cycle of the system and decrease the maintenance cost.
In summary, this paper proposes a new solution for a retractable curved roof system that can not only be transformed from an open to closed configuration but is also able to support itself structurally even during movement and transformation. In other word, the structural and transformable components are integrated and are able to make the whole structure stable during transformation.

Nowadays most of structural engineers consider masonry infill walls as non-structural elements and only their mass is calculated during structural analysis, on the other hand, architects determine the specifications of walls without considering any of their seismic performance. In other words, during the seismic design of conventional medium rise buildings, most focuses are on structural elements and seismic performance of walls is rarely considered. While masonry infill walls are non-structural elements have the most potential to facilitate the entire collapse of buildings and damage them even in mild or moderate earthquakes. Experiences of past earthquakes show infill walls may have positive or negative effects on building›s seismic response. In recent earthquakes, numerous buildings designed by engineers were severely damaged or even collapsed as a result of anomalies in the basic structural system induced by non-structural masonry partitions. Whereas there were weak structures without any lateral force resistant elements constructed by non-specialist people which remained stable as a result of the contribution of masonry infill walls. Therefore the research process has been defined in a way to answer the followings three main questions:1. Which faults in design and construction will cause damage to walls in earthquakes?
2. How can non-structural walls lead to the collapse of seismic resistant buildings in earthquakes?
3. What are the effects of non-structural walls in seismic resistance of buildings?
Since there are various definitions of walls, it should be noted that this study included non-structural walls such as infill walls and partitions and excluded shear walls and load bearing walls. The main purpose of this paper is to identify weaknesses of walls and also investigate the positive and negative effects of infill walls on seismic performance of buildings in a conceptual approach for architects. Numerous studies have been carried out about the effects of infill walls on structural behavior in earthquakes by researchers from structure and earthquakes engineering with an intensive approach, but there are a few researches with a comprehensive conceptual approach considering all efficient factors on the seismic performance of walls with perceptible approach to be employed by architects. So this paper is trying to study the damage of walls in past earthquakes and evaluate their positive and negative effects on seismic performance of buildings in three main levels to determine main causes of damage. The results can be used as awareness for architects about the consequences of their decisions in design process. Considering required measures in the design phase and providing more favorable context for the seismic performance of buildings can result in the better performance of structures.
The main approach of this research is analytical and the applied method is experimental. In fact, the observed damage in past earthquakes is similar to a performed experiment in laboratory with a real scale. In this method there is no limitation in terms of scale, material properties and quality of construction in comparison with computer modeling or laboratory methods. According to the extensive approach of this paper, this method can be very helpful in understanding all efficient factors in seismic performance of walls. The main source of data in this paper is based on the damage of buildings in 1990 Manjil-Rudbar, Iran, 2002 Changureh (Avaj), Iran, 2003 Bam, Iran, 1968 Tokachi-oki, Japan, 1985 Mexico City, 1925 Santa Barbara, California, 1971 San Fernando, California, 1994 Northridge, California, 1995 Kobe, Japan, 1998 Adana-Ceyhan, Turkey, 1999 Kocaeli (Izmit), Turkey, 2001 Arequipa, Peru, 2002 Molise, Italy, 2007 Sumatra, Indonesia, 2008 Wenchuan, Chian, 2009 Abruzzo, Italy, 2011 Tohoku, Japan, 2011 Van, Turkey, 2011 Lyttelton, New Zealand earthquakes.
Based on the experiences of past earthquakes, the seismic behavior of walls can be presented in a unique graph by three levels and analyzing each of them in both positive and negative aspects. In the first level of poor performance, only wall is damaged, which is known as in-plane failure that can happen for both separate and infill walls. The weak components and connections, configuration and the size of openingsare the two main efficient factors for the occurrence of this kind of failures. In the second level, wall is damaged and there would be possibility of damage to other non-structural elements and humans› injury too. These kinds of failure are known as out-of-plane failure and can be occurred in separate and infill walls.
The three factors of weak components and connections, non-proper aspect ratio and weak connections to structural elements are effective on this level of damage. In the third level, infill walls cause damage to the structure of buildings. In this level, wall failure especially in-plane failures may occur first and then followed by structural failure. In other cases wall could remain stable but due to its form, material, connection and position causes the structural damage. Following the structural damage, the damage to non-structural elements such as walls and also human causalities are expected.
There could be imagined, three levels for satisfactory wall performance. In the first level, walls remain stable against in-plane forces. In the second level, walls also remain stable against out-of-plane forces and do not cause damage to other elements. In the third level, walls which remain stable in both two previous levels and have appropriate material, adequate connections between components, proper aspect ratio, durable connections to the structure, proper position of the openings and their arrangement in plan and elevations are desirable, can help in strengthening non-seismic resistant buildings or can provide extra potential for seismic resistant buildings.
As a final conclusion it is necessary to notice the characteristics of walls in order to achieve an ultimate seismic resistant building, besides the seismic design of structural system. A little care to the seismic performance of walls in various stages of architectural and structural design can prevent the adverse effects of walls during earthquakes and exploit their favorable performance. By this method, structural costs can be reduced and also can provide extra potential for seismic resistant of buildings with low quality construction without any increase in cost.

Energy efficiency and comfort consideration in building, contribute to significant energy saving and improvement of spatial quality. According to the importance of energy issues and lack of researches on energy use in educational buildings, climatic variation in the country and huge amount of energy consumption in educational buildings, the need of redefinition environmental design criteria is essential.
The main purpose of this article is to assess the influence of different design variables on comfort condition and energy consumption in the hot-Arid climate of Tehran. Most of the literature concerned with energy performance of school buildings is focused on using saving methods such as utilization of solar energy, constructional issues such as thermal insulation, infiltration, thermal mass, building materials, sun shadings and HVAC performance while assuring thermal comfort and indoor air quality of the building. However, the topic of energy performance and comfort condition of schools located in Iran’s climatic conditions has not been explored.
Nowadays, the subject of energy and optimizing energy consumption in different buildings and different societies is of great importance. On the other hand, energy experts claim that in designing educational buildings, natural energy resources should be used most. This subject is related to the energy consumption of schools. Furthermore, the positive effect of thermal and visual comfort on the quality of students’ education has been confirmed. Educational buildings generally are spaces with different functions.
However, classrooms not only have a central role, but also cover a great part of the school surface. Classrooms are the most fundamental and important units of the educational buildings in terms of energy consumption and thermal comfort. Students spend most of their time in the classrooms. Classrooms are more important, given the relative congestion in comparison with other educational spaces. Due to this fact, proper ventilation is considered necessary. Furthermore, students’ presence as latent thermal energy sources needs special attention in hot seasons. On the other hand, the same thermal sources can play an effective role in creating the comfortable conditions. Therefore, according to the difference of using pattern of these places and their higher internal heat gain, energy saving patterns in designing office and residential buildings cannot meet the needs of designing these buildings.
This research using simulation method is looking forward to realize the influence of different physical variables on energy consumption in educational buildings in Tehran’s climate; the different circumstances that were resumed by diverse variables were assayed. this process took place with the help of E quest energy simulating software and during this process in two separate parts, the independent effect of each variable and the simultaneous influence of applying diverse variables on energy consumption were simulated and its results were compared and discussed in various steps.to enumerate the most essential effective parameters in determining the amount of energy consumption in educational building in Tehran’s climate, we can point out the infiltration rate, heat isolating of the building roof and windows dimension.
To understand the range of influence of each variable on the comfort condition and energy consumption in the classroom, the difference between the maximum and minimum energy consumption obtained for each of the evaluated variables was considered. This difference represents the potential savings that can be achieved by improving a variable within the considered range of values. In this work, the four main orientations were analyzed.to observer the influence of design parameters on energy consumption, a base case classroom was designed and then the absolute and simultaneous effects of different parameters were assessed. The base-case was a common classroom to where all changes were applied and examined. Based on the similar studies, the recommended value for each design variable was determined to achieve a high performance classroom. The fixed parameters of the classroom were its size and height. The thermostat of the heating system was set at 21.1 C while the thermostat of the cooling system was set at 24 C, due to the dissimilarity in the children’s clothing in different seasons. The ventilation system provides a minimum of 4.5 air changes-per-hour (ach) when the classroom is occupied. When there were no children in theclassroom, the ventilation rate will reduce to save energy and the lighting level on the children’s tables was set at a minimum of 300 lux.
The results indicate that by reducing the infiltration rate of the classroom from 4.5 ACH to 0.75 ACH, an energy saving of about 65 KWH/m2.y will achieved. The airtightness of a classroom depends on windows and doors type, quality, and materials as well as on the quality of the construction process. For obtaining infiltration rate of about 0.75 ACH, designers and contractors should give more attention to the quality control of materials and construction and energy performance of the windows and the doors. Meanwhile according to the high amount of sun radiation during the year, roof heat insulation with a 6cm polyurethane layer would reduce the energy consumption by 40 KWH / m2.y in comparison with a roof without any heat insulation. Since the windows have a significant influence on the energy consumption and performance of the classroom, In order to reduce the energy consumption, dimensions and position of the windows should be choose very carefully. It was observed that the recommended size of north and south facing windows is equal to %12 of the classrooms floor area, whilst east and west facing windows should not be exceeds from %10 of the classroom area. If the windows size exceed from %12 of floor area, the glare effect would make visual discomfort for the students. In the simulation process, three types of light control features were evaluated. The results show that with the aid of smart lighting control system, the required electrical energy for lighting would reduce 34 KWH / m2.y. And finally the types of glazing have an important role in energy consumption of the classroom. It is observed that high performance was achieved when using lowemissivity glazing to reduce cooling loads and encourage daylight in classroom. Double glazed windows shows acceptable performance as well, in all directions compared to other alternatives.
Discussion and After analyzing the absolute effect of each parameters on energy consumption and comfort condition in the classroom, the cumulative effect of all parameters were analyzed. It is obvious that by changing of each parameter, the effect of other parameters will be changed. In this case two combination of design variables are assessed in “set-a” and “set-b” in which the annual energy consumption of the classroom is maximum in “set- a” and minimum in “set-b”. Based on the results obtained by simulation, this can be claimed that the proper design of classrooms in hot and arid climate, like the city of Tehran can reduce the amount of energy required for cooling, heating, ventilating and lighting systems from 232 KWH/ m2.y in “set-a” to 104 KWH/ m2.y in “set- b”. It means a %55 reduction in the classroom’s energy consumption. This statics are in conformity with the results achieved by researches in European’s green school which can reduce %55 up to %75 of heating energy consumption and 30 % up to 40 % of electrical energy consumption by using different tricks.

The energy crisis of the twentieth century, numerous crises in the developing countries of the importance and necessity of contemporary architecture in particular. Industry construction industry as one of the important and influential countries, more than ever, it has become important. The changes in the construction industry, increasing energy consumption have followed. In other words, the construction industry is one of the most important and most active in numerous industries that energy efficiency is of utmost importance. The aim of this study was to assess the design and development of indigenous energy efficiency in buildings in the city of Tehran. In other words, the operational objective of this study was to evaluate and measure the energy efficiency in buildings in Tehran and practical to develop a model to measure energy efficiency in
buildings in the city of Tehran. To perform the analysis, the quality measurement values using techniques of comparative research method is descriptive - analytical approach used logical reasoning. Finally, the review and evaluation of energy efficiency, suggestions and recommendations for improving energy efficiency evaluation method is proposed with a native look.

Over the centuries, cities have always employed human societies to achieve their goals; to be more precise, they are part of the infrastructure and tools that are made by human to deal with nature threats and of life management within communities. Of course, it should be considered that cities, as opposed to tools and machines that formed based on the presiced design, are the means which their emergence are not based on detailed planning and a lot of their features simply and arbitrarily have manifested.
The increasing growth of technologies are as emerging phenomenon in cities that follow a future of uncertainty in societies. Political, economic and social factors that are shaping urban applications will be beyond the grasp and control, and will be associated with a set of unknowns and the uncertainties. So the planning and management of cities in its current form, can not respond to this complexity. Integrated management of this uncertainty, requires planning to make smart cities and communities and configuration of these cities should be based on the creation of environments aimed at improving cognitive skills and learning abilities and innovation. This necessitates the creation of digital, physical and organizational spaces that are organized via innovation and creativity through a combination of individual cognitive skills and information systems.
Smart cities are emerging around the world, but still deep differences can be seen with amazing smart environments that open minds and transmit skills and the abilities from the base. Integrated studies in this area can be somewhat overcome the raised shortcomings.
Therefore, this article seeks to explore various aspects of urban intelligence and key components of smart city based on an integrated conceptual model. Method of this research is descriptive and based on gathering documents related to this field. In the first step smart city and its related concepts are presented, in the next step, key factors of smart city based on summing up the views of experts in the field are revealed; catagorized in the framwork of basic smart city factors and componenets (public, institutional factors and infrastructure). Three important factors (intelligence, integrity and innovation) considered as essential requirements for the creation of smart communities that the combination of these factors and preconditions depicted in the form of a model. Ultimately in the final stage of research, how to smart cities explained based on the dimensions and components of the considered model.
One hundred years ago, only about one out of every seven people lived in the city. Today, half of the population live in cities and the percentage of that is growing steadily each year. Because more people migrate to the big cities, town’s credit, technology, trade, formation of governments, resource consumption, quality of life, and many other things considerably grows.
Personal talent or professional opportunities of people, creativity, economic exploitation and accumulation of large numbers of people can have a positive impact on society. Of course, the big urban communities are always big risks for Earth in the form of overcrowding, excessive carbon emissions and waste and high levels of non-renewable energy consumption, so cities - municipal governments, along with businesses and city dwellers that launch the economic growth have a major responsibility for the effective monitoring of people and the environment.
The need to manage resources in terms of sustainability associated with a more important to create an attractive social and economic environment in which citizens, companies and governments can work and live interactively. In fact, The Cities compete more for their citizens and investments than the merchants for their customers.
The issue that is subsequently increased its importance; the overall attractiveness of a particular city, is the experience that the city provide to its citizens and businesses and it becomes manifested in a wide rangeof important features: Value and sustainability of the city government, the economy and employment opportunities, its schools, the quality of the physical environments, culture and artistic resources, higher educational institutions and other educational opportunities for adults, housing, security, social participation, freedom and its variations.
Smart cities and towns have been created via the connection of innovation and digital cities and with the aim of promoting knowledge and innovation. This connection is based on two objective criteria: (1) innovation and digital cities are both community-based processes, and (2) innovation and digital cities are both knowledge-based processes. «Connection» is on the basis of shared knowledge networks and online provision of knowledge and innovation processes. Intelligent Community Indicators depict a global framework for understanding the different communities and regions that can create a competitive advantage in today›s economy. Indicators show that an intelligent city has a more life span than a traditional form:•Significant deployment of broadband communications and government facilities; government that has a role of catalyst via provision of regulations and incentives •Education; training and workforce development to create a workforce, capable of implementing knowledge effectively.
•Government programs and private sectors that promote digital democracy, benefit from all sectors of society, including the expansion of citizen participation in government and their decision-making.
•Innovation in the public and private sectors, including e-government initiatives and efforts to create economic and business development to finance new job opportunities; Effective marketing as a lever for economic development, attract workforce and other community assets to new employers.
•Smart cities, lifeless spaces, complex structures, physical infrastructures, and electronics applicable programs are not digital, In contrast, they are such living communities that use from skills of individuals and institutions for collective learning and innovation, and use from physical and digital infrastructure to communicate and online collaboration.
This research is based on descriptive approaches, for which our goals were to collect data on surviving geometrical patterns and classify them on the basis of time scale and regionalism. Such approaches provide dialectic answers to a wide range of philosophical and architectural questions, such as when or where a particular pattern was extensively used. Smart City, due to the outstanding characteristics of sustainability and attraction, is divided from other cities. Environmental projects are flowed with more than a moral obligation. Sustainability is important for its positive Social consequences and the main factor is creation of habitable environment by the health and welfare of citizens and their businesses. Today, there is no smart city. However, one of the most common ways to get started is creation of a starting point that is based on the geographic, political, economic of the city, then, that city can determine different states based on the costs and effects of different projects and their anticipated transactions, and begin to design various forms of technology, strategy, processes, training, supervision and management of a developed program.
With regard to the impact of the cities on the health of the planet, the agenda of smart city, regardless of where they live, is important for all citizens. If cities are focused on affordable measures to embed intelligence in their services, they have to carry out fundamental right activities, Open and intelligent architecture that is enabled of delivering smart services now and in the future due to the growing needs of a city.