Virtual cities: Designing the metropolises of the future

Simulation software that can create accurate "digital twins" of entire cities is enabling planners, designers and engineers to improve their designs and measure the effect changes will have on the lives of citizens.

Cities are hugely complex and dynamic creations. They live and breathe.

Think about all the parts: millions of people, schools, offices, shops, parks, utilities, hospitals, homes and transport systems.

Changing one aspect affects many others. Which is why planning is such a hard job.

So imagine having a tool at your disposal that could answer questions such as "What will happen to pedestrian and traffic flow if we put the new metro station here?" or "How can we persuade more people to leave their cars at home when they go to work?"

This is where 3D simulation software is coming into its own.

Architects, engineers, construction companies and city planners have long used computer-aided design and building information modelling software to help them create, plan and construct their projects.

But with the addition of internet of things (IoT) sensors, big data and cloud computing, they can now create "digital twins" of entire cities and simulate how things will look and behave in a wide range of scenarios.

"A digital twin is a virtual representation of physical buildings and assets but connected to all the data and information around those assets, so that machine learning and AI algorithms can be applied to them to help them operate more efficiently," explains Michael Jansen, chief executive of Cityzenith, the firm behind the Smart World Pro simulation platform.