$7$

St$.$Km$.$ PVI $=3+200\mathrm{.}00$

Elev. PVI $=348m,L=400m$

In a parabolic type of a crest vertical curve as shown above, the curve elevation at St$.$ Km$.3+050($point I $)$ is given as $343\mathrm{.}28m.$ If the mid$-$curve offset $(Ym)$ is $3\mathrm{.}5m.,$ find;

a$.$ the slopes $G_1$ and $G_2,$

b$.$ the

St$.$Km$.$ and elevation of highest point on the curve.

c$.$ the St$.$ Km$.$ of a second point on the curve having the same elevation with point $1,$ i$.$e$,343\mathrm{.}28m.$

d$.$ Assuming the design speed as $80k\frac{m}{h}r$ and the corresponding sight distances as:

Stopping sight distance $($SSD$)=110m$

Passing sight distance $($PSD$)=550m$

Investigate whether one of these sight distances are provided or not with the existing curve elements$\mathrm{.}9$r