A basic freeway segment has six 11-foot lanes. There are places along the segment where the right clearance to obstructions is no more than four feet. The segment has two interchanges with eight ramps that are 3 miles apart. The terrain is mountainous with 14% trucks and 5% recreational vehicles. The directional peak hour volume is 2100 vehicles and the peak volume during the heaviest 15 minutes is 630 vehicles. Driver population is 80% commuters. Determine the Level of Service. Show all steps in the HCM Method for full or partial credit.