Answer True or False for #$1$

In designing a highway, a driver must always have a distance ahead equal to the safe stopping distance $\_\_\_\_\_$

In designing a highway, a driver must always have a distance ahead equal to the decision sight distance $\_\_\_\_\_.$

$2.$ You are driving along a highway on your way to work and as you go around a vertical curve you see a group of deer crossing the highway. What value of perception$-$reaction time would you as an upcoming traffic engineer use in your design calculations of sight stopping distance?