Williams to Grand Canyon road

Not sure why it would be considered scary. It is a straight, paved road. It does get backed up at the GC entrance during peak times. The way to avoid this is enter through the east gate and work your way along the viewpoints. 

Flat and straight, with far horizons.  Mostly like driving across western Kansas, except as you approach the south rim you enter Kaibab National Forest and you can no longer see the horizon due to the trees.