400m standard plastic track data calculation method on how to calculate each point 400 meters dash plastic track, how to design a fixed point, need some basic data. We require standard venues and facilities in accordance with IAAF standards manual sport track data: perimeter 400 meters, which should be 36.5 m radius curve, straight to avoid the blinding effect of low sun position along the north-south direction. 8 runway should bend the basketball court, each track width of 1.22 meters, has 10 straight runway. Inside of the runway safety area of ??not less than one meter, the best there are one meter outside of the safe zone, the starting area at least 3 meters, at least 17 meters sprint buffer segment. Shall not exceed the maximum tilt runway about 1: 1000, a downward gradient running direction shall not exceed 1: 1000, the runway is semicircular curve, and the most inner radius is 36 meters, width of 1.2 per track meters, the existing eight runway. Since the known standard runway length of 400 m basketball court made, is the length of the inner runway, and know the innermost radius of 36 meters, so you just need to find the inner corners of the runway two semicircles perimeter and then with 400 m minus two corners of the perimeter and, get straight length. Silicon pu Stadium 400-3.14 × 36 × 2≈174 ÷ 2 = 87m repair basketball courts, and by the fourth full-length runway plus the fourth lap of the two semi-circular corners and two straights get silicon basketball court front surface already know the length of the straights are: 87, so the first four full-length runway is: 87 × 2 + 2 × 3.14 × (36 + 1.2 × 3) ≈423m. Plastic runway material plastic runway material from polyurethane prepolymer mixing polyether, tire rubber, EPDM rubber particles or PU particles, pigments, additives and fillers. The above is for reference only, please contact us for details, click or visit the official website to know. Basketball court made | basketball | Qin sports facilities provided by the West 安秦氏 Sports Limited. West 安秦氏 Sports Facilities Co. (www.xaqs6688.com) strong, credible, in Xi'an plastic flooring industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving Qin innovative ideas will lead into the brilliant sports and you work for a better future!