From the editor: In the next decade, the pressure to design infrastructure, cities, and urban spaces in more efficient and sustainable ways will become paramount. Part of the needs-driven solution to urbanization is to create better planned and "smarter" cities supported by technology - eliminating waste and allowing for more sustainable urban development. Connections from the smallest sensors comprising the Internet of Things (IoT) can be joined with city-scale "digital twins", creating city models that can be updated in real-time. Read more about some of the technologies driving smart cities below.