This paper turns its attention to the problems concerning the works which, usually, are not considered impacting on the crossing territory. For this reason they escape to a
correct control of their environmental compatibility, control that results to depend on designer sensibility and capacity. This is the major part of the ordinary one way
viability, that, very often, move itself in places with their own sensibility. Currently the need to improve existing viability give occasion to think about an environmental compatibility of the whole road constructions, not only the wudge ones, allouding that
the improvment became also “environmental”. In this contest, in the environmental qualifications of the interested area, plays a central rule the project of the green arrangement
