Àrea Metropolitana de Barcelona  The Àrea Metropolitana de Barcelona (AMB; "Metropolitan Area of Barcelona") is a public body operating on the principle of metropolitan authority. It is composed of representatives of Barcelona and 36 adjacent municipalities accounting for a population of 3,239,337 (Idescat, 2014) within an area of 636 km2. Its jurisdiction constitutes the main core of the unofficial Barcelona metropolitan area, with a population over 5 million. The three executive bodies are:  The AMB is responsible for three areas: territorial planning, urban planning and infrastructures of metropolitan interest. The AMB plans and manages bus networks and other public transports, except for trams. Its competencies, apart from planning and management, are:  The competencies on environment and sustainability are linked to three areas: water cycle, waste management and environment. Waste Other competencies  The AMB exerts the competencies in land and housing policies established by the urban legislation. It does so by delegation of metropolitan municipalities and to ensure intermunicipal solidarity in these actions. The AMB aims to promote economic activity, employment and entrepreneurship in the areas of industry, trade, services and tourism resources. Social cohesion is one of the objectives of the creation of the AMB and is the principle by which all policies concerning urban planning, transport, environment, infrastructures and assistance to metropolitan municipalities are defined. The aim is to achieve a cohesive and united metropolitan development, in which the benefits and costs of living in the metropolitan area are equally distributed among its inhabitants, regardless of the municipality in which they live. To fulfil this aim, the competencies of the AMB also include the following ones:  The "Àrea Metropolitana de Barcelona" is set on the central "Catalan Coast" and around the capital. The metropolitan area can be divided into two zones:   * ICV-E included in the 2015 coalitions in Comú Badia - Entesa i Barcelona Comú - Entesa. ** Guanyem not included in the 2015 coalitions in Comú Badia - Entesa and Barcelona Comú - Entesa. The Metropolitan Council is the highest governing body of the AMB. Its responsibilities include the appointment and dismissal of the AMB presidency; the approval of the Metropolitan Action Plan, which includes projects and services developed by the AMB during the term; the approval of laws and regulations, as well as the establishment of the metropolitan services fees.