Problem 3:
In a rural area, two highways (both having one lane in each direction) intersect. The east-west highway has no control, while the north-south highway has stop control. If a house located on the SE corner obstructs the view at a distance a = 30 ft (from the north-south vehicle path), and the design speed on the east-west highway is 50 mph. To ensure the NB drivers can cross the intersection safely (without colliding with WB vehicles), what would be the minimum distance of b? Assume the lane width is 12'.
SB
EB
50 mph
house
a = 30