No Left Turn
regulatory sign · rectangle v · white
Left turns are prohibited at this intersection.
- Visual breakdown
- White square with a black left-bending arrow inside a red circle and slash.
- Shape recognition
- Square regulatory sign with the prohibited movement drawn inside the red ring.
- Color recognition
- Red circle-and-slash = that movement is illegal here.
- Memory trick
- The red ring is a steering wheel that refuses to turn left.
- Real-world example
- Common at busy intersections during rush hours where a left turn would block through traffic — sometimes time-restricted by a plaque.
- Common mistakes
- Assuming the ban includes U-turns or doesn't — check for a separate No U-Turn sign; the two are distinct prohibitions.
- Quick recall method
- Slashed left arrow = no left here.
