1. Standard runway length overall standard is 400 m playground plastic runway, by two parallel straights and two equal to the radius of the curve components. Weeding to the runway, along the inner side of the runway sudden application of a suitable material to be boundaries. Ledge about 5 cm wide and at least 5 cm. 2. Should projecting beyond the outer edge of 30 cm measured along the length of the runway at the runway. If no curbs should be measured at 20 cm beyond the outer edge of the marker line. Note: "IAAF Track and Field Facilities Manual" contains all the relevant track structure, design, technical information flag. This rule gives the basic principles that should be followed. 3.400 m and 400 m of the following track, each athlete should occupy a lane, lane width of a minimum of 1.22 meters badminton courts plastic runway, up to 1.25 m campus plastic track, lane width of 5 cm, all lanes wide It should be the same. The provisions of paragraph 2 shall measure the length of said first lane and the other lane length shall be measured at 20 cm beyond the outer edge of the inside lane line. NOTE: lane width should include the right of the lane line basis flatness tests to the merits of the boundary dividing line plastic runway plastic runway, straight in the lateral and longitudinal 3m mark each point, turn to the center point of a circle, each with a theodolite 5〃 make a radial line, each 3m mark a point, will light up to 3m straightedge between any two adjacent points, with a feeler maximum local depressions, each measuring 30 points, and recorded on the site plan. Eligibility requirements flatness points (a feeler gauge readings ≤4mm) ≥85 more qualified. Campus plastic runway, Camry sports (certified), Meizhou plastic runway Ltd. provided by the Dongguan City Camry sports facilities. Dongguan City Camry Sports Facilities Engineering Co., Ltd. (www.kmtyss.com) Dongguan, Guangdong, related products leader, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In the Camry sports leadership with the staff warmly welcome all inquiries negotiations to create the Camry sports a better future.