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\"US LEED\" is the most important for transformation towards sustainable building design and existing building. \"LEED\" is a voluntary, consensus-based green building standard, also is a rating system. After the United States, many countries adopted \"LEED\" standards, because of its popularity, where it has been developed and commensurate with its environment and capabilities. Here the problem of the research is represented, and can be formulated with the following question: Where is Iraq from the experience of the \"LEED\" rating system? And is it possible to approach the \"LEED\" system and our architectural reality with all its components compatible with its biosphere? The aim of the research is to introduce the \"LEED\" standard and to formulate a theoretical approach that can be applied using \"LEED\" standards to improve the efficiency of educational buildings in Iraq so that they become more sustainable and in harmony with their biosphere. The practical part of the research applied on one of the educational complexes in Baghdad, Baghdad Institute of Technology - and evaluated according to \"LEED\" system. The research follows the descriptive analytical method in its interlocutor. The research concludes with the conclusions and recommendations needed to raise the level of educational buildings.

Due to the great importance of the road and transportation sector in cities, as it is one of the main important sectors in Baghdad city, and through monitoring some transportation lines, many cases of traffic congestion were identified, especially during peak hours on the road. The main roads linking the north and south of Baghdad, such as the Army Canal Road, are located on the Rusafa side. To diagnose the problem and its causes accurately, field surveys were conducted to determine the volume of traffic during the morning and evening peak hours of the study area, and to measure service levels and compare them with specifications to determine the extent of the deterioration of the service level. For the road, and how to address it through the application of public transportation methods defined by private rapid transit lines, where it was found that the level of service according to the occupancy standard is an improvement rate of three degrees for both directions, and when applying BRT, the level of service according to the traffic density criterion is the improvement rate of two degrees for both directions. Also, the total number of public transport stations on both sides is 78. A road development plan was also developed by preparing an architectural and urban study to develop the study area, and humane planning through means of transportation and expanding road paths, allocating paths for public transportation, pedestrian and bicycle paths, and bridges for pedestrian crossings. Finally, the study ends with some conclusions.

The noise pollution in the cities has become of great concern all over the World. This research deals with evaluating the noise levels that was carried out in the study area streets (Karada city). The aims of this research were to evaluate the environmental noise pollution present in Karada city caused by traffic noise, compare the measured noise levels in the city with legislations and to establish the connection between noise and the number of active vehicles. The research work was carried out in three different stages: The first stage dealt with the physical measurements (using Apparatus Device), while the second stage had to do with the field surveys and questionnaires conducted to measure and evaluate the effect of noise caused by vehicular movements in the main streets during traffic rush hours. The third stage was carried out in parallel with the first stage as the amount of traffic in the study area streets was measured. Ultimately, the research concludes with results and recommendations to protect the study area from traffic noise pollution, which in return would be very beneficial to studies that deal with planning a noise-free environment.

The widespread use of vehicle has led to new problems in the city because of the need for these vehicles in the organization of movement and parking, especially in areas characterized by increased congestion in the morning and evening peak, which is one of the problems of the great urban growth that hit the city of Baghdad. Accordingly, this study dealt with identifying the traditional and intelligent organizational means to regulate traffic, and the most important specifications and requirements for their distribution within cities. An applied case study of Maysaloun intersection in Al-Ghadeer municipality in Baghdad city was studied for identifying the streets that suffer from the lack of traditional organizational means and the imbalance in their spatial distribution. Through field surveys of the study area, it was noted that the streets suffer from congestion in the morning and evening rush hours resulting from a spatial distribution deficit and a large deficit in the number of traffic signs that have a significant role in regulating traffic and traffic management. Service levels as a street condition were compared with US HCM standards using the HCS2010 program. It was found that all streets of the study area with a service level (LOS) are lower than level (C) and therefore this condition is met by the applicability of Variable message sign (VMS). Finally, a digital photo map using a satellite image of the study area has been prepared as a proposal showing the streets where the requirements for the deployment of intelligent signs (VMS) and basic traffic signs are available to regulate and control the traffic movement and to fill the deficit and imbalance in the number and spatial distribution.