Evaluation and analysis of hazards and passive defense solutions for Alborz Province road network using IHWP & SWOT methods

Urban and regional planning, is done with the aim of developing and hazards, whether natural or man-made obstacles in the way of development. War is one of the hazards of that have been along human and has increased in recent decades because of conflict of interest countries. The passive defense as an attempt at pre-crisis, aimed at reducing the vulnerability of the infrastructure should be considered in planning.
Due to the adjacency with Tehran, Alborz Province road network, are the road link between the capital and the provinces of North and North West and transit route to their North-West neighbors. In addition, the high concentration of population and industry in the middle and eastern part around province’s road network, on the one hand makes importance and on the other hand cause of the threats and vulnerabilities. Therefore planning to reduce the vulnerability of important infrastructure in times of crisis and maintain its efficiency is of paramount importance.
In the present study in order to identify areas and roads that are vulnerable to the threat of war, first, we determine the criteria and indicators of vulnerability, then ranking using IHWP and In the GIS environment vulnerability maps were prepared In the different categories, then, using the SWOT model, strategies for reducing roads vulnerability is defined.
The findings indicated that The main east-west road network of Alborz province in Central and Eastern areas war will be high vulnerability to the threat of war. At the same time, the capabilities and opportunities facing the road network in the same axis. Therefore with the completion of projects under construction and planned to create parallel axes and the retrofitting of bridges and displacement some land use, to reduce the vulnerability of road network Alborz province.