A bypass is a road or highway that avoids or "bypasses" a built-up area, town, or village, to let through traffic flow without interference from local traffic, to reduce congestion in the built-up area, and to improve road safety. A bypass specifically designated for trucks may be called a truck route.
In the picture, the bypass section called Paasikiven–Kekkosentie of the Highway 12 bypasses the city center of Tampere in Pirkanmaa, Finland. Highway 12 was moved between Santalahti and Naistenlahti to the Tampere Tunnel in 2016.
The Newbury bypass near Donnington
Old by-pass sign on Maui for State Route 30 thru surface streets
Overhead sign along Interstate 95 displaying Interstate 295 as a bypass route for Richmond, Virginia
The Cobequid Pass is the name given to a 45 km (28 mi) tolled section of Nova Scotia Highway 104 between Thomson Station, Cumberland County and Masstown, Colchester County in the Canadian province of Nova Scotia. The section is a public–private partnership; the highway is owned by the Highway 104 Western Alignment Corporation, a Crown corporation of the Government of Nova Scotia, with a toll plaza operated under contract by Atlantic Highway Management Corporation Limited, a subsidiary of Aecon Concessions. The toll plaza is located near the halfway point in Londonderry. It opened in 1997.
View of Cobequid Pass taken from KM 83 facing west toward the crossing over the Great Village River at Lornevale