Tunnel Entrance Icon - Vector Graphic for Transportation & Infrastructure Design #3558608 (License: Personal Use)

This monochrome vector illustration depicts a tunnel portal viewed head-on, featuring a rounded archway flanked by sloped retaining walls and converging road lines that suggest depth and directionality. The high-contrast black-and-white design ensures clarity at small sizes and compatibility with accessibility standards. It is optimized for use in schematics, wayfinding systems, and mobile/web applications requiring symbolic representation of underground passages.

Used in transportation dashboards, GIS mapping, public transit apps, engineering documentation, and safety signage to denote tunnel locations or underground routes. Matches user intent for visual symbols representing infrastructure entry points or route transitions.