Smart city is considered like a crucial urban strategy to face these problems,preventing pollution and congestion and supporting innovation, economic devel-opment and inclusion in the meantime . However, it is not simple to say what aSmart city is. A recognized definition of Smart city has not been written until now,even if some aspects often emerge like must-to-be components for smarter cities,for example ICT. ICT is also the core component of other urban strategies, namedDigital city, Wired city, and so on. As ICT is a fundamental driver of smartness incities, to better understand its role and contribution is a critical success factor. Thiswork aims to analyze how ICT pervades smart city initiatives, also evaluating itsweight and pervasiveness in realizing digitalised urban areas.3.2Smart City Is a Global TrendSmart city is described like an urban area where technology and a participatedgovernance aim to improve the citizens’quality of life and concurrently reduce thecity environmental footprint, preserving natural resources . City is the subject,high technologies and governance are the instruments and people and the envi-ronment are the addressers of strategies acting in the urban area with a very largescope, including mobility, urban infrastructure, social policies, culture, economicdevelopment and so on (Fig.3.2).Smart city roots are faraway in the time, but only from 2010 the topic had aboom . We canfind the reason of this explosion of interest in several causes,such as: the increasing urbanization, the diffusion of smart phones and other smartdevices that support a wired city, the EU funding for research and pilot projectsaiming at using the most innovative technologies to reduce the urban footprint onthe environment and the CO2gases emission, and so on.Fig. 3.1Urban population and percent of urban population, all over the world. Source: UnitedNations 463Using ICT in Smart City
This high interest regards both the theoretical studies and the real implementa-tion of smart cities all over the world. A survey about scientific papers indexed onScopus shows that papers with the words“smart city/ies”both in the title or askeywords in 2014 accounted for 532, up from 1 in 1997, but also up from 18 in2010: it means that the number about this topic has been increasing exponentially inthe latest four years (Fig.3.3).