In S-turns, if one side's half circle is consistently smaller and the turn is not completed before crossing the road, this would most likely occur in which segments?

• A. 1-2-3
• B. 4-5-6
• C. 2-3-4
• D. 3-4-5

Answer: (B)

Wind drift shapes how the S-turns unfold across a road. When there’s a crosswind, the two semicircles you describe won’t have equal radii. One side tends to trace a tighter path (smaller semicircle) because the wind component adds to the turn, while the opposite side becomes looser. If you notice that the semicircle on one side is consistently smaller, that means the crosswind is affecting that direction more, increasing the rate of turn relative to your ground path. Because you’re trying to stay over the road by finishing each turn before crossing it, a tighter arc can cause you to cross the road before completing the half-circle. As you work through the sequence, the wind effect accumulates, and this behavior becomes most evident toward the end of the pattern. So the described situation—one side’s half-circle staying smaller and the turn not being completed before crossing the road—would most likely appear in the final portions of the S-turn sequence.