About: http://webisa.webdatacommons.org/222239323

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	From Baum-Snow and Kahn (see link below): ???We find evidence of decreasing marginal returns to new rail investments for every city that had rail transit expansions in more than one decade except Portland and perhaps Atlanta.???
http://www.w3.org/ns/prov#wasQuotedFrom	thetransportpolitic.com