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.
Facebook is a great website for keeping in touch with friends and family members. Certain elements of the site, such as the Wall, are common to everyone's page. So, it's important that you know how to use the Wall on your Facebook page properly.