"The vulnerability of urban environments remains an undeveloped theme. With half of the world’s population currently living in urban centres, and with this figure set to increase to two-thirds by 2050, the issue of security and citizen safety is of paramount importance and a growing concern. In view of the growing number of threats from global terrorism, natural disasters or crime, urban planning practice must incorporate appropriate security measures for vulnerability identification and resilience enhancements.Urban planning is a process involving numerous stakeholders and multi-disciplinary teams. Although the use of software tools plays a significant role in this complex process, yet, none exist that take into consideration the security (and connected safety) aspects of urban planning as a whole.Urban planning teams need tools that fully encompass the pre-application process with developers/designers, and facilitate flexible solutions, not imposed measures. The objective of VITRUV is the development of software tools for the long and complex screening process, which is urban planning, moving across three levels from concept to plan to detail design. Based on an all hazard risk approach, the tools will enable planners• to make well-considered systematic qualitative decisions (concept level),• to analyse the susceptibility of urban spaces (e.g. building types, squares, public transport, and their functionalities) with respect to new threats (plan level), and• to perform vulnerability analyses of urban spaces by computing the likely damage on individuals, buildings, traffic infrastructure (detail level).All levels (concept, plan and detail) will contribute to enabling the development of more robust and resilient space in the field of urban (re)planning/(re)design/(re)engineering. Planners who use VITRUV’s tools will be able to deliver urban space less prone to and less affected by attacks and disasters, thus sustainably improving the security of citizens"