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.
Total number of mobile Facebook users: 1,126,000,000: Increase in Facebook users from 2014 to 2016: 13.2 %: Total number of minutes spent on Facebook each month: 648,000,000: Percent of all Facebook users who log on in any given day: 48 %: Average time spent on Facebook per visit: 18 minutes: Total number of Facebook pages: 78,200,000: Facebook Demographics: Data