Washington Revised Code Title 47. Public Highways and Transportation § 47.56.880. Interstate 405 and state route number 167 corridors--Tolls authorized--Eligible toll facility--Toll rate schedule--Capacity improvements--Performance measures--Violation

(a) The schedule of toll rates must be set by the tolling authority pursuant to RCW 47.56.850. Toll rates may vary in amount by time of day, level of traffic congestion within the highway facility, or other criteria, as the tolling authority deems appropriate.

(b) In those locations with two express toll lanes in each direction, the toll rate must be the same in both lanes.

(c) Toll charges may not be assessed on transit buses and vanpools.

(d) The department shall establish performance standards for travel time, speed, and reliability for the express toll lanes project. The department must automatically adjust the toll rate within the schedule established by the tolling authority, using dynamic tolling, to maintain the goal that average vehicle speeds in the lanes remain above forty-five miles per hour at least ninety percent of the time during peak hours.

(e) The tolling authority shall periodically review the toll rates against traffic performance of all lanes to determine if the toll rates are effectively maintaining travel time, speed, and reliability on the highway facilities.

(g) After the bonds issued pursuant to RCW 47.10.896(1)(a) are retired, the tolling authority must reduce the toll rates commensurate with this reduction in the amount of toll revenues required from the express toll lanes.

(a) Whether the express toll lanes maintain speeds of forty-five miles per hour at least ninety percent of the time during peak periods, and any alternate metric determined by the department in conjunction with the federal highway administration;

(b) Whether the average traffic speed changed in the general purpose lanes;

(c) Whether transit ridership changed;

(d) Whether the actual use of the express toll lanes is consistent with the projected use;

(e) Whether the express toll lanes generated sufficient revenue to pay for all express toll lane-related operating costs; and

(f) Whether travel times and volumes have increased or decreased on adjacent local streets and state highways.