Traffic Congestion: On the same line of air quality and noise
monitoring, a possible Smart City service that can be enabled by
urban IoT consists in monitoring the traffic congestion in the city.
Even though camera-based traffic monitoring systems are already
available and deployed in many cities, low-power widespread
communication can provide a denser source of information.
Traffic monitoring may be realized by using the sensing capabili-
ties and GPS installed on modern vehicles [15], and also adopting
a combination of air quality and acoustic sensors along a
given road. This information is of great importance for city
authorities and citizens: for the former to discipline traffic and
to send officers where needed and for the latter to plan in advance
the route to reach the office or to better schedule a shopping trip to
the city centre