Transportation infrastructures are important since they provide a quality of life worth living, physical security and the basis for public health. Nevertheless the realities of the world in which we live today are the population growth, the diminished resources and the climate change. Under this view we understand that our role as transportation designers is not only to design projects that constructed on time and within budget, but mostly projects that must be sustainable. What do we mean by ‘sustainable’? We mean projects that meet the needs of the present without compromising the ability of future generations to meet their own needs.