A two$-$lane minor road intersects a two$-$lane undivided major road at $90$ degrees,

forming a four$-$leg intersection with traffic on the minor road controlled by a yield sign. A building is

located $50$ m from the center line of the outside lane of the major road and $14$ m from the center

line of the nearest lane of the minor road. A passenger car on the minor road would like to cross the

major road. Using the AASHTO procedure, determine the maximum speed that can be allowed on

the minor road if the design speed on the major road is $80$ km$/$h$.$ Assume a $3\%$ approach grade for

the minor road.

Note: $1$km$/$hr $=0\mathrm{.}62$mi$/$h $,1$ft $=0\mathrm{.}3048$m