Having up-to-date equipment is important to sound traffic signal operations. The signal controller should be upgraded, at a cost of approximately $10,000 each, minimally every 10 years. Routine traffic signal timing updates cost $3,000 or less per intersection.
Facebook. 1  the brand name of a social media service and website, launched in 2004. 2  to communicate with (a person) or search for information about (a person) by using Facebook: My old boyfriend just Facebooked me. 3  to post on Facebook: I facebooked some photos of my cat.
The internet site Facebook.com is based on paper directories of members of an organization (typically students), featuring mug shots, names (indexed by first and last name and other useful indicators) and brief descriptions of them.he internet site Facebook.com is based on paper directories of members of an organization (typically students), featuring mug shots, names (indexed by first and last name and other useful indicators) and brief descriptions of them.