Determine the LOS for a Class I, $4\mathrm{.}5$ mile, two$-$lane highway segment in level terrain. Traffic volumes

$($two$-$way$)$ are $1100$ veh$/$h$.$ Trucks: $10\%$; RVs: $7\%$; PHF: $0\mathrm{.}97$; directional split: $\frac{60}{40}$; no passing

zones: $40\%.$ Base free flow speed: $55m\frac{i}{h}$; lane width: $11$ ft ; shoulder width: $3$ ft ; access points per

mile: $15.$

LOSA

LOS B

LOSC

LOS D

LOSE

LOS F