# IoT-Enabled Smart Cities: Evolution and Outlook
## 2 IoT-Enabled Smart Cities Landscape
### Atlanta  
The City of Atlanta defined three main areas, namely mobility, public safety and sustainability on which its smart city plans would be broadly focused. The decision made was to employ a data-centric model that exploits data collected from a wide variety of sensors and existing information sources and enables the adoption of better-informed decisions in order to enhance the effectiveness of city operations and have a positive impact on citizens' and visitors' lives. Overall, the idea was to horizontally integrate city departments through data sharing as well as increase interaction with citizens by publishing data openly. By using ICT technologies and analytics it is looking for automating city processes and improving decision making by leveraging data to gain situation awareness, service optimization and predictive analytics.  
Some of the projects, with a focus on those more related with ICT technologies in general and IoT in particular, that have been put in practice in Atlanta are as follows:  
* **North Avenue Smart Corridor:** Designed to act as a living lab for mobility- and safety-related IoT and data analytics, as well as connected and autonomous vehicles. The 2.3-mile North Avenue Smart Corridor, which is a key east-west arterial connection in Atlanta, incorporates many smart city technologies, including adaptive traffic signals which adjust to traffic conditions in real-time and can prioritise emergency vehicles. The City of Atlanta will take key learnings from this Corridor but is now looking to take a much broader approach to mobility.
* **ShotSpotter:** This service can pinpoint the exact location where a gunshot has been fired. Alerts will notify police of possible gunfire within 30-45 s, and give the precise location, normally within 20 feet. The necessary infrastructure was deployed at 200 streetlights in five different locations across Atlanta.
* **Smart Neighbourhood:** The project, run in association of an energy utility and a home construction company, planned the creation of more than forty technology-enhanced houses aiming at drastically reducing their Home Energy Rating System (HERS) score. The data-fuelled home energy optimisation platform intelligently scheduled each home's major appliances, in coordination with solar and batteries, to minimise cost while maximising each homeowner's comfort at a neighbourhood level.
* **ATL311 and NotifyATL app:** These two apps enabled more fluent interaction with citizens which could report non-critical problems such as potholes, graffiti or waste issues and track the status of service requests, as well as provide citizens with critical information about events such as severe weather, unexpected road closures, missing persons and evacuations of buildings or neighbourhoods as well as community events and crime alerts.  
Most of these projects are supported by CityIQ platform [25]. This IoT platform, currently run by Ubicquia, was developed by Current (a General Electric subsidiary) and built on Intel's technology and was used to make the available data actionable to support the abovementioned services.