This icon represents a tunnel. It has an outline of a tunnel that looks like a "C" pointing downwards. There are three dashes below the "C" shape to depict where the road is.
This Tunnel icon has Android KitKat style
. If you use the icons for Android apps, we recommend using our latest Material Icons icon pack (please check our sidebar on the right). Otherwise, it's a solid icon pack that looks good in small resolutions, either on the web or in print. It's characterized by thick lines, smooth corners, and is optimized for 24x24 pixels.