About: http://webisa.webdatacommons.org/288192314

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	The commercial speed of a train is the average speed for a section of the route -- i.e., distance between endpoints divided by the time taken, including the time taken for technical halts and such.
http://www.w3.org/ns/prov#wasQuotedFrom	irfca.org