About: http://webisa.webdatacommons.org/66618742

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	Amtrak trains (blue) using the northern tunnel pair to Penn Station have no conflicts with any other trains, except for other trains using the same tunnels.
http://www.w3.org/ns/prov#wasQuotedFrom	wordpress.com