Underground street

An underground street is a passageway or thoroughfare built beneath the surface of a city, designed for pedestrians or vehicles to move efficiently without relying on surface-level roads. These spaces often include commercial areas, shops, or transit points, helping to alleviate congestion above ground and provide convenient connectivity across urban zones. Common in large cities like Montreal or Tokyo, underground streets improve urban mobility, enhance safety, and offer sheltered walkways, especially useful during harsh weather conditions. They form an integral part of urban infrastructure, seamlessly blending transportation, commerce, and public space beneath the city’s surface.