Cardiff, like many cities around the world, is facing challenges managing its growth in a sustainable and prosperous way. The project will see the development of a virtual 3D city model to collect and manipulate data in order to monitor and control vital city functions such as, energy, transport, health, water, waste etc, in a holistic manner and develop a full understanding of how they interconnect and interdepend. The project will focus in particular on the role of Cardiff city centre as the heart of a rapidly growing city and as the retail, leisure, commercial and transport hub for a city-region of 1.4m people. It will work with businesses, universities, third sector and citizens to ensure the delivery of a vibrant, prosperous, low carbon, healthy and happy city, and will form the platform upon which Cardiff can achieve its ambition of becoming a "One Planet City" by 2050.