A six$-$lane freeway $($three lanes in each direction$)$ in level terrain has $10-$ft lanes and obstructions $5$ ft from the right edge. There are zero ramps within three miles upstream of the segment midpoint and one ramp within three miles downstream of the segment midpoint. The traffic stream has a peak$-$hour factor of $0\mathrm{.}84,$ peak$-$hour volume of $2500$ vehicles, and $4\%$ heavy vehicles. What is the LOS make sure show all steps