Spiral curve $(1\mathrm{.}5$ points$)$

Q$2.$Spiral Curve

Compute:

Delta

R

Given:

$I=70{00}^{\text{'}}{00}^{\text{'}\text{'}}$

$D_a=05{30}^{\text{'}}{00}^{\text{'}\text{'}}$

$L_S=200ft$

P$.$I.at station $70+00\mathrm{.}00$

$5-$ chord curve

$x$

Y

Xo

$0$

Ts

Lc