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 PORTAL project releases a video depicting 1,000 days of bottlenecks on northbound I-5 in Portland • March 2009 The PORTAL project in the ITS Lab recently released a video depicting 1,000 days of bottlenecks on northbound I-5 in Portland. Using data collected from ODOT freeway sensors, the PORTAL team has developed a mechanism for identifying bottlenecks and characterizing their impact on freeway performance. For more information see PORTAL. Watch the video: | ||||