عنوان مقاله [English]
Increasing population and expansion of cities requires the provision of more types of urban utilities and infrastructure for citizens. This increase and expansion has made capacity building and control of early depreciation of infrastructure facilities one of the biggest challenges of urban management. The construction of urban common utilities tunnel as a huge structure to integrate infrastructure is a prudent solution. Which brings a calm urban environment away from visual disturbance, environment and facilitates movement and transit for citizens and on the other hand, it facilitates the implementation, maintenance and renovation of urban utility, reducing the costs of protection and maintenance and repair of all installation lines, increasing urban space and preventing multiple excavations and reducing the cost of repairing roads and infrastructure for urban management. The purpose of this article is to identify the management barriers to the implementation of a common tunnel of urban utilities in the city of Tehran in the stages of policy and decision-making, planning and design, financing, implementation, operation and maintenance. The results of the research using the qualitative method of content analysis of the data obtained from 22 semi-structured interviews show that the most important obstacles are identified in the stages of policy-making, decision-making, planning and design, which in some way affect other stages. In the policy-making and decision-making stage, the lack of executive guarantee of the law, the emptiness of legal rules and necessary instructions, and the inefficient selection of actors are expressed. In the planning and design phase, we proposed the lack of a database and detailed maps of the current state of utilities networks, the lack of scheduling and financial considerations, the complexity of feasibility studies, the lack of needs assessment studies, general technical criteria and standards, and unclear details.