@conference {SIEEUM14051,
	title = {A new perspective on street classification towards sustainability},
	journal = {EEESD {\textquoteright}12 - 8th WSEAS International Conference on Energy, Environment, Ecosystems and Sustainable Development},
	year = {2012},
	month = {2012-01-01 00:00:00},
	pages = {1{\textendash}6},
	address = {Faro Portugal},
	keywords = {road hierarchy, Street classification, street performance, Sustainability, Urban Planning},
	isbn = {978-1-61804-088-6},
	url = {http://sieeum.eng.uminho.pt/publicacoes/pub.aspx?pubid=14051},
	author = {Ribeiro, P. J. G.}
}