$14-4.$A Class II rural two$-$lane highway segment in rolling terrain has a base free$-$flow speed $($BFFS$)$ of $50m\frac{i}{h}.$ The highway has $11-ft$ lanes and $4-ft$ clear shoulders on both sides. There are $10$ access points $\frac{?}{\text{m}\text{i}\text{l}\text{e}},$ and $70\%$ of the segment is in $"$no$-$passing" zones. Current traffic is $400$ veh$/$h$,$ with $10\%$ trucks, $3\%$ RVs$,$ and a PHF of $0\mathrm{.}81.$ The directional distribution is $\frac{60}{40}.$ Using a two$-$way analysis, what level of service is expected?