BIM Roles in Enhancing Building Performance in Construction Projects Through Communication Management Case Study: The Grand Egyptian Museum

In Egypt’s construction industry, achieving successful project performance is still a challenge, particularly in construction projects involving multiple stakeholders, where the requirements increase and different management approaches between the multi-stakeholders during project phases affect the communication process. However, the reliance on traditional methods of transmitting information and communicating between all parties results in many problems. Therefore, many software and technologies are developed to improve communication management and address the challenges of complying with the information that stakeholders require. BIM technology has emerged as a suitable platform for information exchange and visualization, which can aid in increasing the quality of information transfer and exchange to ease construction management and improve building performance. Thus, this research aims to improve building performance by improving communication management in construction projects using BIM. A qualitative research methodology is adopted to achieve the aim of this research. It is based on an analytical study of a literature review, a case study on a BIM project in Egypt and semi-structured interviews carried out in the Grand Egyptian Museum project. The research outcome lies in exploring the role of BIM to achieve the most possible benefits and raise the management performance of the communication process during construction.


Introduction
The pattern of project production is considered one of the most important production patterns in developed and developing countries.The project is defined as a set of sequential and interrelated activities that are distinguished by their type and characteristics.Each project has a specific beginning and end.Therefore, the success of projects requires effective management of both planning and implementation, scheduling project activities, and taking the necessary measures to accelerate and accomplish some tasks [1].Project management is divided into several knowledge areas based on objectives and characteristics.Communication management is one of the essential knowledge areas required for project success, as the necessary tools and procedures are identified to be used in the development of the project phases [2].Communication is a technique for exchanging information between project participants [3].The communication management process is described as collecting, distributing, retrieving, exchanging, and disposing of information; therefore, it is necessary to provide a constant flow of information during the various stages of the project.Furthermore, communication is vital in construction projects with multiple stakeholders, as their requirements increase and differ during the project stages, requiring adequate communication [4].
Specifically, communication is the possibility of obtaining, coordinating, exchanging, and disseminating all relevant information among those concerned; meanwhile, information is defined as the data that is processed, coordinated, and presented in a clear format to be easily understood [5].Construction projects also undergo sequential work stages during construction, which requires a vast amount of information.Furthermore, Crotty indicated that poor information standards are the main reason for poor performance in construction projects, where proper project performance referred is The capacity to accomplish the project in accordance with the desired requirements, within the allocated budget and time frame, and in a manner that pleases the client and other stakeholders [6]; thus, it is essential to improve the quality of information and the ability to effectively transfer and exchange it among stakeholders to the highest possible level to ensure adequate performance in the construction industry [4].Additionally, ineffective and poor communication in construction projects could impact project performance; however, ineffective communication results from a lack of an exemplary communication model to manage project communication [7].
Hence, the main problem of the research is highlighted, which is poor communication in construction projects in Egypt as a result of not specifying the appropriate methods and techniques that contribute to achieving effective communication between the project participants, which resulted in many problems that negatively affect the performance of projects.In addition, the research highlights the importance of relying on and benefiting from information and communication technology in the field of construction and the emergence of building information modelling technology.Communication is one of its most important features and characteristics that help achieve effective and direct communication between project participants [8].
The National Building Information Modelling Standards (NBIMS) committee of USA, defined BIM as a digital representation of the physical and functional characteristics of a building.BIM is a shared knowledge source for obtaining information about the facility [9].It serves as a reliable basic file for decisions taken during the life cycle of the building, from idea to demolition.In simpler terms, it means that the building is built twice, the first in the digital environment (the program) and the second in the creation of the building in the real world [10].
In construction projects, how to obtain information, i.e., access to information in a timely manner and in an appropriate manner, is an essential axis to ensure the delivery of projects according to their specific objectives.The ability to provide the contractor with information to carry out the construction as required is an essential feature of good documentation.This is what is rarely provided in twodimensional engineering drawings, which results in some errors and wrong documents, which contribute to poor productivity and re-work, thus exceeding time and costs and the occurrence of disputes [11].In view of the importance revealed by the role of BIM in managing information, achieving coordination between project documents and detecting conflicts, it was necessary to try to take advantage of this technological development from the perspective of communication in construction projects.
Therefore, the research aimed to enhance the communication management of construction projects in Egypt by using BIM in order to raise the efficiency of project performance and control its time span during construction to effectively achieve the desired goals of the projects, by providing a framework through which it is possible to improve project communication management and overcome the problems of traditional communication methods.This is done by studying the causes and impact of poor communication on construction projects and how building information modeling can enhance communication in construction projects.

Literature review
The literature review in this study is divided into two sections: the first discusses communication in construction projects, including its effectiveness, causes of its poor performance, and effects on projects; the second examines the role of information, communication technology, and BIM support in enhancing project communication by defining the concept of BIM and its role in facilitating the flow of information, which helps in improving the performance of projects.

Communication as a critical factor for successful project performance.
Both internal and external communications play important roles within projects, as per Figure 1.Internal project communication affects project performance greatly as it is the largest part of Implementation of project activities.Various media such as technology and face-to-face interactions are used to communicate certain messages to internal audiences, depending on the type of message.Internal communication occurs more frequently than external communication because of the ongoing 1283 (2024) 012008 IOP Publishing doi:10.1088/1755-1315/1283/1/0120083 involvement of internal project stakeholders as part of project management due.Therefore, internal communication by its very nature is critical to the success of the project [12].The value of and effects of good communication are covered in project management literature.Project failure is a result of ineffective communication. the execution of project management tasks and the enhancement of the project's performance and desired goals.Both PMBoK and PRINCE place a strong emphasis on communication as a crucial area and a useful tool in management projects.Project execution throughout the project's life cycle is referred to as project performance.This comprises the metrics used to determine if the project is succeeding or failing.Generally accepted success criteria take into account limitations like scope, time, and money in addition to the well-known classic triangle and customer satisfaction and expectations [13].

Communication overview
Communication is the transmission of a message from the sender to the receiver via an intermediary communication channel [12], which must be consented to by both parties.Furthermore, communication involves exchanging intended or unintended information; however, this information could be either ideas, instructions, or emotions.On the other side, methods of information exchange include written, formal, informal, vocal, gestural, and verbal approaches [14].Moreover, Bowen Edward defines information as processed data with clear and explicit meaning [5].Additionally, information must be correctly understood and transmitted Communication can be considered a collaborative process that results in mutual understanding between the sender and recipient.The communication model consists of the following five components: The sender is the individual who initiates communication.Second, the recipient is the person who gets what is sent by the sender.Thirdly, the message may be a written document, a presentation, or an advertisement [15].betweenindividuals and organizations for the communication process to be effective [14].Fourthly, a communication channel could be verbal, nonverbal, written, computer-assisted, or electronic.Finally, Commenting on the recipient's response to the message, understanding the recipient's reaction and awareness of the message [16].
Communication management is essential because it connects each project team member so that they may collaborate to accomplish the desired outcomes [17].Furthermore, communication is a dynamic and continuous process during the various phases of the project, as it links all stakeholders in the project; however, effective communication is a critical factor in achieving the project's objectives [14].According to the Project Management Institute (PMI), 55% of project success depends on effective stakeholder communication [17].Furthermore, the success of construction projects mainly depends on the availability of an efficient method of information exchange between the various stakeholders.
Frequently, effective communication is necessary for projects with interdisciplinary work environments since it involves continual interaction between all organizational stakeholders [18].A person with a lack of communication skills may conduct an ineffective communication process; thus, these skills play an essential role in the effectiveness of communication [14]; however, effective communications involve delivering accurate information to the intended recipients at the appropriate time and in the proper manner; while ineffective communication among project teams is the cause of inaccurate information [17].Meanwhile, communication effectiveness depends primarily on the message's validity from sender to receiver via an appropriate medium, the clarity of the message's meaning, and the recipient's ability to perceive it easily [16]

Poor Communication
Poor communication refers to unsuccessful delivery, direction, and inappropriate timing of information distribution [19].However, there is a connection between communication (the flow of information and data) and progress.Additionally, communication is an influential and effective factor in the success or failure of projects [1].Therefore, poor communication is a common problem in construction projects, in addition to the correlation between poor communication and the negative effects on the project's timeline and budget.Furthermore, Poor communication leads to an increase in rework, which affects accordingly the time and cost of the project as well as the final results and goals desired.
This study determined the common causes and factors for poor communication in construction projects based on previous findings such as physical barriers, cultural barriers, language barriers [14], poor communication management, different levels of education, different levels of experience, lack of training, lack of knowledge [21], poor communication skills, poor coordination [20], poor understanding , unclear goals, and lack of clarity channels where communication between the sender and the receiver causes many problems, so it is necessary to agree on the medium of communication from the beginning [22], desire to control and lack of enthusiasm, the complexity of construction projects, feedback, unconscious message distortion, which is the delivery of information in an unclear manner, and this can arise from a person's tone or simplicity of expression ,conscious messages are the conduct of unethical behaviour in order to convey information in the wrong way or the transmission of incorrect information, work pressure, lack of technical support and technological malfunctions [19].

Impacts of Poor Communication
Poor communication is the primary factor in the failure of projects [23].The effects of poor communication in projects include exceeding cost and time and disagreement between project participants; hence, ineffective communication leads to unsatisfactory results.The Project Management Institute (PMI) published numerous studies in 2013 comparing the influence of effective and ineffective communication on achieving project objectives.Effective communication achieved 80% of the project's initial objectives, 76% of the specified budget, and 71% on-time delivery.Effective communication yields fruitful outcomes in contrast to ineffective communication [19].The impact of poor communication on construction projects was determined based on research and a review of prior studies, such as project failure, disputes, over budgets, poor quality of work [24], time overruns, poor interpretation, poor understanding [17], accidents within the site, unmotivated shareholders, untimely reactions, unsatisfied clients [14], poor cooperation ,waste generation, Low productivity , vulnerability to increased risks and unsatisfactory documentation [25].

BIM overview
BIM alter the construction industry, but it cannot change the purpose of the industry through the design, construction, and operation of facilities.Thus, BIM can change the methods and processes applied to complete these tasks.BIM is distinguished from other traditional methods in that it improves the operations of the building during all its stages [26].BIM is a digital representation of the physical and functional characteristics, which helps to know all the information that can be shared with those concerned and also helps provide databases for decision-makers for all stages of the building's construction [27].It is also defined as a set of interactive processes, policies, and technologies that provide a methodology for managing and designing a building and providing its data through digital coordination for all parts of the building during its life cycle.BIM develops and employs computers to create a model that integrates the facility's planning, design, construction, and operation [26].BIM is known as the n-D modelling application, which includes 3D modelling of buildings, showing all the information about all the elements of materials for its construction, maintenance requirements, other information, project schedule, cost estimation tool, and management utility that affects effective communication and enhances cooperation between stakeholders [28].

BIM method to enhance building performance through communication
BIM information flow refers to the organized flow of information through BIM technology to effectively achieve project management objectives.Facilitating the exchange of information between project teams is essential to enable efficient and effective information management and sharing among project participants [30].BIM comprises intelligent elements like doors, columns, and other physical features.The information included by these intelligent objects differs from that of the CAD entity, as CAD offers little or no descriptive data.Stakeholders demonstrate the maturity and usefulness of BIM technology [30].For example, BIM provides a building database that shows building data such as geometry, configuration, systems, materials, technology, construction, and maintenance schedule information [22].BIM's most significant objective is to alleviate information fragmentation amongst design teams by facilitating data flow clearly and straightforwardly.In other words, BIM allows users to exchange information through the centralization of its files, so BIM is developed to get rid of the chaotic flow of information in the usual traditional ways [32].
In addition to the role of BIM in achieving 3D coordination, it is an iterative process that compares three-dimensional models to reduce problems.This procedure involves combining three models.The integration of models enables virtual visualization of the entire project, which helps detect the clashes through a combined model of specializations to identify all clashes on custom programs to detect and resolve the clashes before the construction process begins [33].In addition to addressing the difficulties of delay in decision-making and access to the necessary information and sharing it with the work team, coordination fosters a collaborative work environment, saving time and effort, and improving project performance [34].Collaboration and work sharing are two of the most important features of BIM.Collaboration is defined as the relationship structure followed to achieve effective management.Collaboration is closely related to communication and the ability to easily exchange information between project stakeholders [35].Work can be shared with other users to start collaboration and discussions on the model through work set, as well as allowing the user to make updates and changes to it and give comments in a timely manner, which facilitates the process of transferring and exchanging information between users [36].
Visualization and virtualization.The transmission of visual information is essential for understanding and communicating with projects.Visual communication is distinguished from verbal communication by its ability to process data with higher efficiency [37].The three-dimensional model is a virtual model used by users to understand and visualize the project and discover clashes at an early stage of design, which reduces the risks resulting from them.Re-work, increase time and costs, and thus improve project work performance [38].
Potential risks are determined by construction experts based on the individual's experience and available design information, such as two-dimensional construction drawings.It is expected that 2D information does not effectively identify risks compared to BIM, as it has been proven that BIM improves the information and data environment that identify risks because it is a realistic environment.And more effectively, BIM provides the possibility of imagination and simulation that cannot be provided by traditional methods of design in addition to the information links of building object models, which means that once a specific part is changed, it accordingly changes with the rest of the project as IOP Publishing doi:10.1088/1755-1315/1283/1/0120086 a whole, which is not available in traditional methods, which contributes to reducing the size of the risks resulting from loss Information and miscommunication [39].
Acceleration of schedules, as 4D BIM is an essential feature of the Building Information Modelling application, as linking the time dimension to the 3D model is useful for the planning stage, used to improve construction planning and thus accelerate construction plan and schedules [40].The idea of linking the schedule to a 3D model made it possible to visualize the temporal and spatial relationships of construction activities, which helped reduce scheduling errors.4D visualizations are simplified representations of the stages of project development.We find that the use of 4D BIM as a means of communication in meetings and discussions during the stages of construction operations instead of the traditional methods helped to identify and understand problems, which accelerated the ability to make the necessary decisions to solve them and thus improve the performance of the project [41].In addition, aligning of construction with design, where the use of BIM in construction projects is a key factor for improving communication and cooperation between the participants, as we find the compatibility of BIM tools with the project work processes and the works implemented in them so that the project work matches the work of the models [42].

Materials and methods
This research is based on an analytical review of the relevant literature in order to understand the concept of communication and its effectiveness, as well as the causes of weak communication and its impact on the performance of work in construction projects, in addition to an overview of BIM and its advantages (Figure 3) and its role in achieving effective communication through which it is possible to improve performance in projects.
In addition, the case study of the BIM project in Egypt as an attempt to discover the methods used by BIM to improve communication is based on semi-structured interviews, which is a dialogue between individuals designed to collect data for the research objective.However, it is one of the most popular methodologies for case studies, as it facilitates the extraction of qualitative data and produces the most knowledge.One advantage of semi-structured interviews is that the questions provide a more effective comparison while analyzing the results Therefore, each data extracted from the literature review and case study was used to conduct a matrix questionnaire to determine the role of these methods in improving project communication through their impact on the causes and impact of poor project communication and thus improving overall project performance, It was analyzed using the SPSS statistical program.A case study for the Grand Egyptian Museum project is presented to illustrate how Building Information Modeling (BIM) can enhance the performance of buildings by providing them with effective communication, particularly among project stakeholders.Semi-structured interviews were conducted with ten participants with 10 to 30 years of construction experience who were involved in the museum project (Table 1).

Case study overview
The Ministry of Tourism and Antiquities -formerly of culture -launched 2002 an architectural competition to establish a unique world museum characterized by a location overlooking the archaeological area in the Giza region, to increase and stimulate tourism in it, provided that the design is consistent with the pyramids in the background and is in line with the surrounding environment with composition A distinctive visual image supported by the presence of the pyramids in the background [43].The Egyptian Museum is located on the Cairo-Alexandria Desert Road near the Pyramids of Giza.The genius site's distinctive characteristics and image strongly impact the surrounding area to become the Egyptian tourism triangle in Cairo and one of the most visited tourist places [44].-General project supervision: Ministry of Antiquities, Engineering Authority of the Armed Forces, and GEM administration team.Project components Project components include The main building of the museum, which contains many museum galleries, the library, the Museum of Scholars, a conference hall, a 3D cinema hall, theatrical galleries, an opera, a museum for children, and another for people with special needs, a multimedia center, a center for training human resources, a center for crafts and arts Recreational areas [45].

Project architecture
The Grand Egyptian Museum is located between the complexities of modern Cairo and the culture of the pyramids of ancient Cairo.Three elements governed the planning of the new museum within the site.First, the plateau's edge divided the site into upper and lower sections.Secondly, the view towards the pyramids.Thirdly, the entrance through the Cairo-Alexandria Desert [46].

Data analysis
This section analyses data from semi-structured interviews conducted for a case study, focuses on the BIM techniques utilized to improve building performance by enhancing communication in construction projects and presents the matrix tables used to analyze and study the impact of BIM methods on the causes and effects of poor communication in the projects presented in the literature.

Information flow management
BIM helps manage information and make it accessible appropriately and at the right time; hence, BIM functions as a library containing all the building's components.Additionally, all project partners can access the same information as respondent 3 at any time and place.BIM elements are distinguished by being SMART elements which contain metadata such as model, manufactured materials costs, and other information included in the element by the respondent5; thus, BIM is considered a history for each element through the FLAG command that can be given to the element, which identifies all updates and changes to the element during the project phases by respondent 5 (Figure 5).

Virtualization and visualization
BIM contains a simulation and virtual function that includes all aspects and disciplines of the building through 3D visualization of the building elements by respondent 4. The significance of 3D visualization in the Grand Museum is in facilitating the visualization of areas with irregular dimensions and heights, which must be imagined and virtualized before design so that respondent 3 does not misunderstand or misconceive a specific part.Additionally, it facilitated much discussion and helped improve performance through the ability to understand and imagine, thus reducing the problems of rework and many changes by Respondent 8 (Figure 6).

3D coordination
Comparing 3D between all disciplines was conducted simultaneously to solve many problems that may be encountered during implementation by respondent 2. Furthermore, coordination can solve the problems of clash detection that may occur between different disciplines through programs dedicated to resolving this clash detection, such as the Navis Work program; therefore, it became easy to solve and avoid these problems before reaching the site, which saved a lot of time, effort, cost and improve building performance, by the respondent6.Furthermore, Navis Work gives more accurate information about the clash detection between the elements, explaining the clash between any two elements and what the special codes are to access them more accurately and faster by respondent 5 (Figure 7).

Work sharing
BIM provided a collaborative work environment through the availability of a single source of information through the creation of a file and a work set (it is a tool within Revit through which it is possible to see and share among the work team) so that everyone can access the same information at the same time, by the respondent 5. Furthermore, BIM also provided the possibility of cooperation through the notification of changes.In this case, if one wants to modify a part of the project while another one works on the same part, the program will notify that permission is needed to deal with the process (Notification of change in real-time); thus, this will save a lot of time, effort and improving project performance by the respondent 6 (Figure 8).

Aligning with construction
BIM enabled an off-site simulation of the building's actual condition.In addition,3D facilitated numerous issues; for instance, the intricate lines were difficult to comprehend in 2D, while respondent6 could comprehend and examine them more precisely and clearly in 3D in the museum project, which leads to improving the performance of the project work by respondent 8.

Accelerate schedules
BIM technology facilitated the understanding of project elements and the ability to visualize clearly, thus reducing on the time it takes to understand a specific part during implementation.For example, BIM in the museum project and its difficulties facilitated communication between the work team, so that everyone was able to understand and imagine the building at a higher quality, which accelerated the performance of the project and improved its productivity, according to respondent 10.The BIM model became the language of communication and interaction between the parties involved in the project by the respondent 8.

Reducing risk
According to the respondents, BIM helped reduce the risks resulting from misunderstanding, poor coordination, and many Requests for information, change orders and rework resulting from not being notified of updates and changes in a precise manner and at the right time, this reduced time, cost and improved project performance by the respondent 9 (Figure 9).

Results and discussion
In the present work, many barriers were discovered in communication between stakeholders by looking to review the literature in the theoretical part, in addition to identifying the importance of communication and the causes of poor communication and its impact on construction projects in Egypt, as well as by analysing the data of the respondents in the case study.Furthermore, these barriers include the 2D lines that rely on transferring and exchanging information between the stakeholders, which takes time to understand and analyse, as well as misunderstanding or perception, which causes problems with time and cost for the project; thus, changes and rework are necessary, and according to the respondents, technology and its simulation and virtualization could improve in understanding and exchange of information among stakeholders, achieving higher accuracy in estimating time ,cost for the participants and improve project performance.
In addition, we find that BIM plays a significant role in solving cooperation problems by providing a sharing environment for work through the availability of links for dealing and providing a single source of information, according to the respondents in the study case.It also helped achieve 3D coordination between all disciplines, thus overcoming the problems of conflicts and the resulting problems, such as changes and rework on the site.Hence, the importance of BIM in accelerating timelines became clear through its ability to solve problems of rework and changes and reduce the volume of inquiries, facilitating the construction process and it improves project performance.In addition, the analysed data showed that BIM could reduce risks through its ability to integrate operations and manage information compared to traditional methods.
By analysing the respondents' data on the proposed methods to enhance communication in construction projects, it turned out that they were already applied methods and helped improve communication between project stakeholders.As illustrated in Figure 2, these methods and others were developed based on the case study respondents' responses.In addition, these extracted methods were used in forming a matrix questionnaire to investigate the results and measure each proposed method's effectiveness and impact on communication problems to improve building performance through communication management in construction projects in Egypt (Figure10).1.1.A finding for matrix improves building performance in construction projects in Egypt through communication.This part shows the statistical analyses extracted from the results of the suggested matrix questionnaire to improve project work performance through communication.Multiple response analysis was used to study the most important problems of poor communication, the consequences of poor communication during the construction phases, and the proposed BIM methods to enhance it.The analysis was based on SPSS and Excel programs, and due to the difficulty of the matrix inputs, 19 tables were created.Each table deals with a reason for poor communication and its consequences during the construction phase, as well as proposed solutions to improve it and the impact of each of them, the ratio, and frequency, according to the respondents.In this part of the research, the focus was on the most popular of these methods, according to the respondents, as shown in Table 3 that Consequences of unsatisfied client is one of the most important problems resulting from language barriers during the construction phase by 73.33% with over budget at 73.33%.This was followed by an over-time problem at 53.3%, followed by an Unmotivated Client at 33.33%, and proposed solutions: Aligning construction with design is one of the most important BIM methods applied to improve communication during the construction phase.With a percentage of 53.33%, followed by work sharing with a percentage of 46.67%, followed by 3D coordination with a percentage of 40%.
poor communication during the construction phase, equally for each of them at a rate of 46.67%.Followed by vulnerability to risks increase, Untimely reactions, and project failure equally for each of them, at a rate of 40%.Proposed Solutions: Aligning construction with design is one of the most important BIM methods applied to improve communication during the construction phase by 73.33%.Followed by work sharing, 3D coordination, visualisation, and virtualization, with a rate of 40%.
The previous tables, in addition to Figures 11 and 12, show the results of poor communication problems identified in the matrix and arrange them according to percentages and frequency, as well as proposed solutions to improve communication and reduce problems resulting from poor communication, which helps to improve work performance in construction projects in Egypt.

Conclusion
This study was conducted to improve the performance of buildings using BIM technology through communication with construction projects in Egypt.This is done by knowing the causes of poor communication problems and their consequences, as well as putting forward analyses and BIM methods applied to enhance communication, which in turn improve the performance of the work in the project as a whole.The study explored that the problems resulting from poor communication that affect the performance of projects are rework in the first place with a rate of 45.3%, followed by overtime by 39.9%, poor quality by 37.5%, and a lack of cooperation between stakeholders by 31.6%.Then low productivity by 29.5%, followed by poor understanding by 27%, an unsatisfied client by 20%,

Reworks
Average Percent overbudget by 18.9%, Disputes between the stakeholders by 18.2%, as well as poor understanding by 16.8%, followed by Untimely reactions by 15.8%, followed by unsatisfactory documents by 14.4%, vulnerability to risks increasing by 14%, project failure as a whole by 16%, waste generation by 9.5%, and finally an unmotivated client by 9.1%.
The study also revealed that the most common BIM solution to improve communication is sharing work achieved by BIM, with a percentage of 51%, followed by information management and flow by 37.9%, three-dimensional coordination by 34.4%, visualisation and virtualization by 26.7%, and risk reduction by 17.9.Then Aligning construction with design by 16.5%, and finally accelerating schedules by 14.4%.
With the presentation of these BIM methods as solutions to the problems of poor communication, as they reduced the consequences of problems, you find that, for example, the most BIM method that enhances communication is work sharing, which helped reduce its negative effects on projects from rework, time overruns and costs, and poor quality.This, in turn, affects the improvement of the level of communication with construction projects, and thus, accordingly, the level of performance of buildings and work on construction projects in Egypt as a whole improves.The same is the case with BIM methods for managing and flowing information, which facilitated many problems of lack of cooperation and disputes between stakeholders, as well as poor understandings and Poor interpretations between stakeholders, as well as three-dimensional coordination and its ability to solve problems of poor coordination and effective communication management, reduce waste, time overruns, and overbudget, in addition to Aligning construction With the design that helped improve quality and reduce re-work in addition to accelerating schedules and reducing risks that are realised from the proposed BIM methods to enhance communication, which is a key factor for improving the performance of work in construction projects in Egypt as it reduces problems resulting from poor communication between the various stakeholders participating in construction projects, Following these proposed BIM methods will improve the performance of work on projects as a whole by improving communication and interaction between all parties involved in construction projects in Egypt.

Figure 2 .
Figure 2. BIM method to effective communication

Figure 4 .Table 2 .
Figure 4.The Grand Egyptian Museum project Source: https://egymonuments.gov.eg/news/a-tour-in-the-conservation-laboratory-of-the-grand-egyptian-museum/Table 2. Description of the Grand Egyptian Museum project The Grand Egyptian Museum project Project area About 500.000m2 Employment duration

Figure 5 .
Figure 5. Flag command for a modified museum element.

Figure 6 .
Figure 6.Visualization of the BIM model and a part of the museum's roof.

Figure 7 .
Figure 7. clash detection between two parts of the projects.

Figure 8 .
Figure 8. Work Sharing through central file access

Figure 9 .
Figure 9. Request for information on the stairs by 3D module.5.Results and discussionIn the present work, many barriers were discovered in communication between stakeholders by looking to review the literature in the theoretical part, in addition to identifying the importance of communication and the causes of poor communication and its impact on construction projects in Egypt, as well as by analysing the data of the respondents in the case study.Furthermore, these barriers include the 2D lines that rely on transferring and exchanging information between the stakeholders, which takes time to understand and analyse, as well as misunderstanding or perception, which causes problems with time and cost for the project; thus, changes and rework are necessary, and according to the respondents, technology and its simulation and virtualization could improve in understanding and exchange of information among stakeholders, achieving higher accuracy in estimating time ,cost for the participants and improve project performance.In addition, we find that BIM plays a significant role in solving cooperation problems by providing a sharing environment for work through the availability of links for dealing and providing a single source of information, according to the respondents in the study case.It also helped achieve 3D coordination between all disciplines, thus overcoming the problems of conflicts and the resulting problems, such as changes and rework on the site.Hence, the importance of BIM in accelerating timelines became clear through its ability to solve problems of rework and changes and reduce the volume of inquiries, facilitating the construction process and it improves project performance.In

Figure 10 .
Figure 10.Matrix to enhance building performance through communication management.

Figure 11 .Figure 12 .
Figure 11.Summary of BIM Solution to improve building performance through communication