10 ways tech can cure big-city headaches - Raconteur

Located at the mouth of the River Plate, Argentina's capital Buenos Aires is subject to torrential rain. With an ageing infrastructure and nine subterranean rivers, the deluge can turn into floods. Clogged drains have been responsible for property damage, even lost lives. To track water flow the city has installed sensors across the sewage system, measuring speed and level of water. This information is combined with weather data and even garbage vehicle sensors.