3 April 2017, The Conversation, This is the first article in our series Making Cities Work. It considers the problems of providing critical infrastructure and how we might produce the innovations and reforms needed to meet 21st-century needs and challenges. Infrastructure: Our cities and regions depend on the critical nodes and arteries that together comprise urban infrastructure systems. This includes energy, food, water, sewerage and communications. The positioning of critical infrastructure is crucial to our understanding of the world we live in and how we see ourselves. It’s our means of survival as Homo urbanis. This means key questions around critical infrastructure need to be better considered. How is it critical, when and for whom? Beyond espionage, sabotage and coercion. Critical infrastructure has received much attention in recent years. The reasons include concerns about exposure to terrorist attack, disruption by disasters, rising awareness of the interdependent nature of urban infrastructure, and changes in ownership and responsibility for infrastructure assets….Infrastructure is defined as critical on the basis of what is at threat should it be destroyed or disabled, and how much that matters. Yet what is critical about critical infrastructure is not just a matter of national security threats. It is also the key linkages between this infrastructure and human and environmental system vulnerability, integrity and equity. Experiences of critical infrastructure are not equal, but highly contingent on political and economic priorities, influence and opportunity. Read More here