Compute L$,$ T$,$ E$,$ M$,$ LC$,$ R$,$ and stations of the PC and PT for the circular. Use the chord definition for the railroad curve and the arc definition for the highway curves.

a$.$ Railroad curve with $D_c=4{00}^{\text{'}},I=24{00}^{\text{'}},$ and PI station $=36+45\mathrm{.}00ft.(10$ pts$)$

b$.$ Highway curve with $Da=4{00}^{\text{'}},I=15{30}^{\text{'}},$ and PI station $=15+22\mathrm{.}00ft.(10pts)$

c$.$ Highway curve with $R=500\mathrm{.}000m,I=28{00}^{\text{'}},$ and PI station $=1+984\mathrm{.}000m.(10pts)$