CHAPTER $6,$ part $2-$ Problem $3$:

As US$-460($Main St$)$ enters Salem, it becomes an undivided multilane highway with two $11-$ ft lanes and no shoulders and a $45m\frac{i}{h}$ speed limit$.$ This segment is level and has $16$ access points per mile. During the highest $15$ minutes of traffic flow within the peak hour $($assume a peak hour factor of $1\mathrm{.}0),$ there are $540$ cars, $40$ single$-$unit trucks, and $40$ tractor$-$trailer trucks. Does Main St maintain the LOS from problem $2?$ What are the estimated speed, density, and LOS of this highway segment?

Note: a specific length is not needed to solve this problem.