Stage one is the deployment of sensors that passively assess traffic flows, pedestrian traffic and potential hazards. Shortly thereafter, cities will deploy more active measures, such as controlling traffic lights and entire systems based on holistic input from the swarms of sensors.
One of the hotspots (literally) will be city lamp posts, especially if they are connected electrically. This will be the focus of considerable attention, as they are a perfect platform for Wi-Fi, temperature and other ambient condition sensors, and hence, potential hosts for super-high-speed, ubiquitous, wireless connectivity. Want to get a feel for what’s happening across the whole landscape? Fire up a mesh of a bazillion sensors on the lamp posts and start getting a better picture. All this without significant development and acquisition of land.