A junction designed to prevent congestion and gridlock. Vehicles may only enter the box-shaped area (usually marked with crossing diagonal lines) if their exit from the junction is clear, or in some cases if they intend to make a turn.

plural of box junction

A village by Carstairs railway station and triangular junction in South Lanarkshire council area, Scotland (OS grid ref NS9545).

An unincorporated community and census-designated place in Mercer County, New Jersey, United States.

A town, railway station and junction in Conwy county borough, Wales (OS grid ref SH7978).

A hamlet in East Devon district, Devon, England, named after a former railway junction (OS grid ref SY2496).

A suburb of Shirebrook, Bolsover district, Derbyshire, England, named after a railway junction and former station (OS grid ref SK5268).

An industrial estate in Horbury, Metropolitan Borough of Wakefield, West Yorkshire, England, named after a railway junction (OS grid ref SE3017).

plural of Y-junction

A three-way intersection of routes shaped like a capital letter Y. / A similarly shaped section in a pipe, etc.