[T]oll lanes are failing to meet speed benchmarks set by the Legislature that require cars in the toll lanes maintain an average speed of 45 mph or faster, 90 percent of the time during peak periods. To meet the obligatory rates of speed, one recommendation is to raise the top rate above the current maximum of $10.
“The legislature required WSDOT keep traffic moving at least 45 mph for 90 percent of peak periods. Not all sections of I-405 meet that requirement. Single lane sections are only hitting the target 72 percent of the time, according data recorded through the end of June. WSDOT says these numbers are improving.”