A shared three$-$way pedestrian$-$bicycle facility has a width of $10ft$ and carries a peak pedestrian flow of split

in each direction$).$ The bicycle flow rate is $150$ bicycles $\frac{?}{h}$ in the passing direction, and $160$bicycle$\frac{s}{h}$ in the opposite direction.

The average pedestrians' speed is $4f\frac{t}{sec},$ and that for bicycles is $8f\frac{t}{sec}.$

a$)$ Determine the pedestrians' LOS $(5$ pts$).$

b$)$ Determine the LOS for the shared bicycle paths $(5$ pts$).$