When Commuting between the north suburbs of Seattle to downtown Everett I opt to take the very busy hwy 99 the speed limits for cars ranges from between 35mph to 50mph but there is a heck of a lot more room for me on my bike than on the side streets. It can be hairy on somedays but some of those side roads up there are just 2 lanes and no shoulder I have had my share of close calls on those roads.