SCP Japan(http://www.smartcity-planning.co.jp/en/index.html)

In the Smart City Project, we define the attractions of a city on these five layers for the purpose of developing a Smart City: real estate development (first layer), basic infrastructure (second layer), smart infrastructure (third layer), life services (fourth layer), and lifestyles, culture and art (fifth layer). Based on the layers, we are making proposals by “packaging urban attractions,” using the solutions individually provided by participant companies.

Cities are hubs for ideas, commerce, culture, science, productivity, social development and much more. At their best, cities have enabled people to advance socially and economically.
However, many challenges exist to maintaining cities in a way that continues to create jobs and prosperity while not straining land and resources. Common urban challenges include congestion, lack of funds to provide basic services, a shortage of adequate housing and declining infrastructure.

The challenges cities face can be overcome in ways that allow them to continue to thrive and grow, while improving resource use and reducing pollution and poverty. The future we want includes cities of opportunities for all, with access to basic services, energy, housing, transportation and more.