The problem I have is the study didn't fully factor in road layout/design. Highway 85 here in the Valley spans from the south Valley up to 101 in Mountain View. Within months of opening, it was a recurring traffic jam. Boom or bust in the valley, traffic let up a little in the bust, but the road is congested pretty much from 6:30am until 9:30/10am in the morning. Intersections of 85/280/101/237 at the north end impact traffic northbound in the morning. 85/280 impacts southbound in the evening.
Again - patterns persisted during both the last two booms and busts.
Again - patterns persisted during both the last two booms and busts.
It is more than just a "small group of drivers".