Streetscape refers to the natural and built elements of a street and aims to describe the design quality and visual effect of the street as a public place. An avenue is a public road with buildings on the sides that may also include vegetation, while a boulevard is a wider street with a median separating traffic lanes and vegetation on both sides. Examples of avenues and boulevards in Paris are given to illustrate the differences. Greenways are also discussed as corridors for multiple transportation modes that incorporate consistent streetscaping treatments and transit stations.