Computer science researchers at Aston University have created an AI traffic light management system that is more efficient at reducing traffic jams and waiting than current manually designed phase transitions management solutions.
IBM published a getting started guide to their Semantic Data Science API. The machine learning product allows data to be mapped to domains and/or concepts, which are then analysed and meaningful insights and extractions are generated. I recently read about a similar AI technique used in the Pivot Project to help with Climate Change, as described in Steve Hamm's book The Pivot.
The Safe Project has placed solar powered microphones in the rainforests in Borneo that live transmit audio that is analysed using machine learning to detect species calls and analyse changes in sound and rainforest landscape over time.