Road Narrowing Traffic Sign

This image features two vertical grey shapes against a solid black background. The shape on the left is a straight, uniform column. The shape on the right starts as a straight column at the top and bottom, but in the middle section, it narrows inward towards the left shape before expanding back out, effectively depicting a narrowing passage. It's a clear, simplified representation of a road narrowing warning sign.

road - narrowing - traffic - sign - pixel - warning - grey - simple