One lane road (distance) ahead road sign (MUTCD CW20-4)
MUTCD CW20-4

One lane road (distance) ahead Road Sign

What this sign means

Indicates the roadway narrows to a single shared lane ahead, where opposing traffic must take turns, often controlled by flaggers or signals.

Sign group
W20 series Work zones
MUTCD code
CW20-4
View all Warning signs

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