What are the standards of the speed skating playground?

The standards for a speed skating rink typically include a length of 400 meters, with a width of at least 7 meters on the track. The surface should be smooth and made from high-quality materials to ensure optimal speed and safety. The rink must also have proper markings for various distances and lanes, along with safety barriers to protect skaters. Additionally, temperature control is important to maintain ice quality during competitions and practices.