The Type II dilemma zone describes a segment of road on the approach to a signalized
intersection where, if occupied by a motorist presented with the circular yellow indication, is
likely to result in a motorist having difficulty deciding to stop at the stop line or proceed
through the intersection. This phenomenon results in increased frequency of three failure
conditions: rear-end collision at the stop line (excessive deceleration rates), the more severe
right-angle crashes in the intersections, and left-turn head-on collisions (both resulting from …