ATSAC

Jon Bruner profiles Los Angeles Department of Transportation Engineer Edward Yu, and the ATSAC system run by Yu and his team, which controls the timing of traffic lights at each of the city's 4,114 intersections.
Jan 27, 2012   Forbes
At the Automated Traffic Surveillance and Control center (ATSAC) near City Hall in Los Angeles, a team of engineers watches traffic flow all over the city, sucking in tons of data to improve transit and automotive circulation.
Jun 2, 2010   GOOD Magazine