Blue Line may refer to:

Transportation

Africa

Asia

Canada

Europe

United States

California

An ice hockey rink is an ice rink that is specifically designed for ice hockey, a team sport. Alternatively it is used for other sports such as broomball, ringette and rink bandy. It is rectangular with rounded corners and surrounded by a wall approximately 1 meter (40-48 inches) high called the boards.

Name origins

Rink, a Scots word meaning 'course', was used as the name of a place where another game, curling, was played. Early in its history, ice hockey was played mostly on rinks constructed for curling. The name was retained after hockey-specific facilities were built.

Dimensions

There are two standard sizes for hockey rinks: one used primarily in North America, the other used in the rest of the world.

International

Hockey rinks in most of the world follow the International Ice Hockey Federation (IIHF) specifications, which is 61 metres (200 ft) × 30.5 metres (100 ft) with a corner radius of 8.5 metres (28 ft). The distance from the end boards to the nearest goal line is 4 metres (13 ft). The distance from each goal line to the nearest blue line is 17.3 metres (57 ft). The distance between the two blue lines is also 17.3 metres (57 ft).

The Blue Line (French: Ligne bleue) is one of the four lines of the Montreal Metro in Montreal, Quebec, Canada. It was the fourth to be built, notwithstanding its alternate official name of "Line 5" (Line 3 was planned, but never built). Unlike the other three routes, the Blue Line does not serve the city's main Metro station, Berri-UQAM.

The line is served by a single yard located between Parc and de Castelnau stations which is completely underground and occupies a small portion underneath Jarry Park. Another service facility is located at the 500-metre end tracks following Snowdon station, but is rarely used by the Société de transport de Montréal (STM).

On September 20, 2013, an 7-km extension north-east to St. Leonard and Anjou was announced by the STM and the Quebec government. The extension is to include five new stations and is planned to be operational by 2020. On May 28, 2014, it was announced that the project would be reviewed in priorities after the new government took over, and that if accepted again, construction would start in 2017.

The Blue Line is a rapid transit line in the Greater Boston metropolitan area, one of four subway lines operated by the Massachusetts Bay Transportation Authority (MBTA). It runs from Bowdoin station in downtown Boston under Boston Harbor to East Boston and Revere on the inner North Shore, where it terminates at Wonderland. The stop at Airport Station, with a free shuttle bus to Logan International Airport, is one of two rapid transit connections to the airport. The line was assigned the blue color in 1967 during a systemwide rebranding because it passes under Boston Harbor.

The East Boston Tunnel was built as a streetcar tunnel in 1904; after an extension to Bowdoin in 1916, it was converted to heavy rail metro rolling stock in 1924. In 1952 and 1954 the line was extended along the former route of the Boston, Revere Beach and Lynn Railroad, in a project intended to reach Lynn but ultimately cut short to Wonderland. Further extensions to Lynn and Charles/MGH downtown are long-planned but not yet funded.