Analysis of the benefits of building information modeling (BIM) in tunnel projects - A case study: Namaz Square metro station of Islamshahr

The construction industry is one of the key industries of every country that has a great impact on the economy because a significant percentage of the country budget is annually allocated to the construction budget. With the arrival of the fourth industrial revolution, the scope of applying technologies in the field of construction has been expanded. The construction industry has experienced a tremendous transformation with the approach of digitization and the involvement of new technologies, and this evolution has a significant impact on meeting the needs and processes in the construction industry. Among the technologies that have provided a platform for the digitization of the construction industry is construction information modeling, a process in which the management and production of construction project information is carried out in a coherent and integrated manner, and it causes group cooperation, effective coordination of project elements and more detailed designs. The tunnel is one of the most widely used projects in the construction industry that is used for various purposes such as transportation, mineral extraction, directing the flow of underground and surface water, installation of facilities, etc. In this paper, analysis of the benefits of construction information modeling in tunnel projects according to the research conducted from 2010 to 2022 in a case study is presented following implementation of construction information modeling in the tunnel of Namaz Square metro station in Islamshahr located in Tehran Province.