The Tunnel Type Road Interchange Vulnerability Assessment Model

At present, both in Russia and abroad, a new line of work is developed to comprehensively automate the functions of monitoring and controlling security systems, life support and technological processes of potentially dangerous, unique and technically complex objects (high-risk objects), which can also include car interchanges tunnel type. However, these works are unsystematic and do not fully solve the prevention and liquidation issues of emergency situations at the above-mentioned facilities. Moreover, in case of incorrect design of the above-mentioned systems, they can contribute to the deaths of people on the site and beyond. This is confirmed by the accidents’ statistics at these facilities including the road junctions of the tunnel type. The accidents causes’ analysis at high-risk facilities showed that they are largely stipulated by the incorrect definition of vulnerability (threats) assessment for the designed facilities and the facilities under construction. Thus, the model development for assessing the vulnerability of tunnel-type road junctions is an urgent task. To achieve this goal, the main causes of emergencies at tunnel type road junctions are considered and based on them, using a system analysis method and experimental theory, a three-dimensional model that allows, with the expert assessments, to determine the susceptibility of tunnels to various threats types, is developed and tested.