I-405 Express Toll Lanes

December 30, 2017, 9am PST
The two-year-old I-405 express toll lanes are actually a trial. It's up to the legislature to decide whether they will be permanent. Two metrics were laid out: revenue and performance, but there's controversy there as well.
KIRO Radio
February 15, 2016, 7am PST
HOT lanes are supposed to not only speed traffic flow for paying solo motorists in the carpool lane, but improve traffic flow in the adjacent free lanes, according to theory. A new study on express toll lanes in Seattle disproved that last part.
Seattle PI
December 28, 2015, 1pm PST
The new I-405 Express Toll Lanes between Bellevue and Lynnwood might be undercharging solo commuters at $10. Carpoolers, who drive for free, are increasingly hard to spot in the lanes, according to anecdotal reports.
The Seattle Times
September 30, 2015, 11am PDT
Washington has Express Lanes on I-5 and I-90 and HOT Lanes on SR 167, but the 17 miles of lanes that opened Sunday on I-405 from Bellevue to Lynnwood will be the state's first Express Toll Lanes.
Planetizen