Speed skating rink

A speed skating rink (or speed skating oval) is an ice rink (but also a sport venue) in which a speed skating competition is held.

A standard speed skating track is, according to the regulations of the International Skating Union (ISU), a double-laned track with two curved ends each of 180°, in which the radius of the inner curve is not less than 25 metres and not more than 26 metres. The width of the competition lanes is 4 metres. At the opposite straight of the finishing line, there is a crossing area, where the skaters must change lane. [ISU Special Regulations and Technical Rules] - Rule 203

At international competitions, the track must be 400 metres long, with a warm-up lane at least 4 metres wide inside the competition lanes. For Olympic competitions, the track must also be enclosed within a building.

The design and dimensions of a speed skating track have remained more or less unchanged since the foundation of ISU in 1892.

The speed skating track is also used for the sports of Icetrack cycling and Ice speedway

The measurement of the track is made half a meter into the lane. The total length of the track is the distance a competitor skates each lap, i.e. the length of two straights, one inner curve and one outer curve, in addition to the extra distance skated when changing lanes in the cross-over area, which on a standard track equals 7 centimeters.

The demarcation of the competition lanes are made by painted lines in the ice (ot a set of painted marks) and movable blocks of rubber. On outdoor tracks, snow may also be used for demarcation of the competition lanes.

Although ISU regulations state that minimum measures for a standard speed skating track, alternative track lengths may be used for competition. The minimum requirements are track length on 200 meters, radius of inner curve of 15  meters and width of the competition lanes 2 meters.

Many speed skating venues have ice hockey rinks or no ice area at all inside the oval. A few are suitable also for bandy, like Hamar Olympic Hall,[1] Ice Palace Krylatskoye,[2] and Medeu.[3] In Norway there is an agreement in place, stating that an indoor arena intended primarily for either bandy or long track speed skating, shall have ice surface for the other sport as well.

...
Wikipedia