Las emisiones de gases de efecto invernadero en el sector transporte por carretera

The research presented on the idea that the road transport modalities, goods and passengers, and the latter in two types, private and public sector makes up a considerable socioeconomic relevance. In fact some estimates set its contribution to GDP of Spain by 7% on average, reaching 10% if one includes the own-account transport, and media production and transport infrastructure. Thus, the obvious benefits of the economy, which largely reflected in the relevant statistics, should be deducted from the outstanding costs involved not only in terms of increasing energy dependence of our country, the huge and dramatic cost resulting from accidents, and the derivative of the problems caused in terms of pollution and land use and infrastructure congestion. It lays the methodological foundations for construction in phases, a system of indicators to allow assessment and monitoring of the sustainability of transport sector in three dimensions: economic, environmental and social comparison synchronic and diachronic indicators, the establishment of threshold values: critical and desirable values and objectives realistic progress toward desirable.