What is Physical Factors

In today's world, critical infrastructure encompasses facilities vital to the economy, politics, and population. Their maintenance and safe operation can ensure the supply for the population. These facilities are at risk due to climate change, natural disasters, terror attacks, or wars which are increasingly affecting countries around the world. In addition, the human factor can also cause uncertainty and damages. The function of the world depends on human activities. In this chapter the uncertainties in safety and security are introduced. Security is the most important part as it is the critical infrastructure protection and human safety . The important pillars of safety and security and these uncertainties are introduced in this chapter.