By Alfredo Cabrera Nathan Mustafa Sterling Mosley

In most cases, the departure sight triangles for left and right turns onto the major road as in Case B1 (Left Turn from the Minor Road) and Case B2 (Right Turn from the Minor Road) will provide more than adequate sight distance for the minor road vehicles to cross the major road. However there are intersections that may fall under Case B3.

Where Left and/or Right Are Not Permitted from a Particular Approach and the Crossing Maneuver is the Only Legal Maneuver Where The Crossing Vehicle Would Cross the Equivalent with of More Than Six lanes Where Substantial Volumes of Traffic and Steep Grades that Might Slow the Vehicle

Major Road Minor Road 44.5