About: http://webisa.webdatacommons.org/443853251

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	Changeable LED road signs, similar to signs that alert drivers to upcoming congestion or accidents on urban highways, will adjust speed limits based on weather or other conditions on remote or mountainous routes.
http://www.w3.org/ns/prov#wasQuotedFrom	canadiancontent.net