The vision for the adaptive city starts with its goals (figure 1). These are clearly different for each city. For example, in the United States, Miami’s needs in terms of resilience are far different from those of Dallas. Adaptability is key since it becomes an enabler to better support all goals. It means you can hit more of your goals more of the time for more of your stakeholders.
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Figure 1. Adaptive city goals: dynamically optimized for all stakeholders.[/caption]
Since the business goals for the city are continuously changing, the adaptive city will need to support dynamic optimization of the goals themselves so that goals which are in mutual tension, such as traffic volume and CO2 emissions, can be pro-actively managed minute-by-minute.
2. Design for adaptability
To design for adaptability, it is important to focus the design on both digital and physical elements of the city’s architecture. Software adaptability can be accomplished with approaches such as cloud computing, AI, ML, digital twins, software-defined networks, smart contracts, and platform business models.
Physical adaptability can be accomplished with approaches such as modular design and construction, multi-functional design, robotics and drones, and techniques which support rapid integration and interoperability or dynamic provisioning (table 1).
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Table 1. Digital and physical enablers for the adaptive city.[/caption]
Examples include Ample’s robotic
battery swapping stations which can swap out an electric vehicle's battery modules and packs in 10 minutes. Then there is “plug and play urbanism” which takes elements such as pedestrian bridges and makes them moveable as needed. The
City of Fort Worth improved the streetscape with a moveable bridge across an 80-foot-wide creek. On a larger scale,
Qatar's shipping-container football stadium can be taken apart and reassembled after matches.
This physical adaptability extends to specific assets in the built environment as well as entire structures. Multi-functional streetlights, such as those in the
New Haven planned development community in Ontario, California, are equipped with USB charging ports, environmental sensors, Wi-Fi, wayfinding and more.
3. Build for intrinsic agility
To build out or renew city infrastructure, these digital and physical enablers will provide much-needed intrinsic agility. By utilizing them during the construction or renovation process, there is adaptability by design for their entire operational lifetime. A timely example is microgrids that can react to shocks, like a self-healing organism, if part of the grid is damaged.
In terms of integration, it will be important to pursue a platform business model where intellectual property from startups and other constituents can plug and play into the platform’s services much like the Apple app store. The adaptive city may own and operate this platform as a public service, but it also enables permissionless innovation so that others, including citizens, can easily innovate and build on top.
It's time to redefine the role of each asset from the buildings, roads, cars, and even the human role in the adaptive city.
As part of this journey, the natural environment needs to be more blended with the hard-built environment: blending the green and grey. As a society, for too long, we have relied almost entirely on grey infrastructure without leveraging the benefits of the natural processes of green infrastructure, which has natural attenuators built in.
The adaptive city as a software company
With so many technical building blocks enabling so many use cases for the adaptive city of the future, perhaps the main challenge will be in the governance and orchestration of the platform business model which brings all this to life. At this point, the adaptive city will become its own software company – quite literally helping to make the world a better place.
It is said that “every company is a software company” and perhaps now is the time for every city to become a software company as well.