The document is a planning manual for building smart cities. It defines a smart city as one that uses information and communication technologies to enhance livability, workability and sustainability. A smart city collects data from sensors around the city, communicates that data through wired and wireless networks, and analyzes the data to understand current conditions and predict future needs in order to improve operations and decision making. The document provides guidance to help cities develop their own roadmaps for becoming smarter through the use of emerging technologies.