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The Permit Test
Y-Intersection (MUTCD W2-5 sign)

Y-Intersection

warning sign · diamond · yellow

The road splits ahead in a Y. Decide your fork early and watch for traffic merging from the other branch.

Visual breakdown
Yellow diamond with a Y shape — one road becoming two.
Shape recognition
The Y is literal: the stem is where you are, the arms are your choices.
Color recognition
Yellow warning; the fork may arrive faster than you expect at speed.
Memory trick
Y = 'which way?' Answer it before the pavement asks.
Real-world example
Old highways fork at Ys where routes divide; late lane changes at the split are the classic crash there.
Common mistakes
Drifting through the middle while deciding — indecision at a Y puts you head-on with the divider or the other branch's traffic.
Quick recall method
Road forks in a Y — choose early, watch the other arm.