What technology should we expect cities to realistically adopt within the next 5-10 years?

Question on @Quora: What technology should we expect cities to realistically adopt within the next 5-10 years? https://www.quora.com/What-technology-should-we-expect-cities-to-realistically-adopt-within-the-next-5-10-years?srid=ux5M&share=c720bc02