Madrid is the capital and largest city of Spain and the third largest in Europe (after London and Berlin) with a population of around 3.23 million inhabitants. Its metropolitan area, with about 6 million people, is the third most populous in Europe after Paris and London. The city has a total area of 605.77 km2. Around 8.4 million trips occur on a weekday in the city of Madrid, which accounts up to 3415 km of highways (938 km correspond to high capacity ones). The main highways network, with a radial structure , is complemented with 2 ring and 2 semi - ring highways. In the recent years, Madrid growth has lead to the challenge of how to combine the spread of the city, with the mobility needs of the population without generating impacts, for instance, on traffic, air quality and occupancy of public space, among others.
Nevertheless, the city of Madrid has an extensive and comprehensive public transport system . For example , the subway system has 338 stations , 2,157 trains and a network of 339 km, while the municipal transport company (EMT) has 203 bus routes ( with 3,725 km), 10,024 bus stops and 2,000 vehicles using a wide variety of alternative fuels ( including 100% electric , hybrid and CNG buses) . In addition to this, there are 13 transport interchanges which are key in the promotion of intermodality. Therefore, the city of Madrid manages a complex set of urban infrastructure and public services. To carry out the management of these public services based on quality indicators, an ICT support model requires a global vision.
Under the concept of Smart City ( Smart City ) there are a set of development and service management policies which lay the foundations for a sustainable future and a reasonable quality of life of its citizens. These policies try to address the problems such as housing, energy, environment, safety and security, urban services and of course, mobility.