Determine the PTSF in each direction for a $4\mathrm{.}5-$mile iwo$-$lane mignway segment in level terrain. Traffic volumes $($two$-$way$)$ are $1100$ vph$.$ Trucks: $10\%,$ RVs: $7\%,$ PHF $0\mathrm{.}97,$ directional split $60/40,$ no passing zones: $40\%$

Use the data provided in problem $4$ to estimate the ATS in each direction. Base free$-$flow speed is $55$ mph $,$ lane width: $11$ ft $,$ shoulder width: $3$ ft $,$ access points per mile: $15$

Use the results from problem $4$ and $5$ to determine the LOS of the highway $($assuming the highway maybe Class I, II or III$)$