SCOOT (Split Cycle Offset Optimization Technique) is a traffic management system sold by Siemens in use by the City of Ann Arbor to control traffic signals on Washtenaw from US-23 to S. University, Plymouth from US-23 to Swift, and Eisenhower/ Packard from Ann Arbor – Saline to Turnberry.

http://www.scoot-utc.com/

http://www.a2gov.org/government/publicservices/project_management/trafengineer/Pages/TrafficSinals.aspx