Jane said that the design and the proportion of the runway
The standard runway length of 400 meters, composed by two parallel straight channel and two equal to the radius of curve. As a result of the game and held events in the field need to move along a portion of the process, the application of 5 cm wide white mark or flags along the original process position and placed plastic cone, the height of at least 20 cm intervals, up to 4 meters. The runway safety area of not less than 1 meters of the medial, lateral best and safe area of 1 meters, the starting area of at least 3 metres sprint buffer period of at least 17 meters. Bank shall not exceed the maximum 1:1000, running direction downward inclination of not more than 1:1000.
for there is no sudden along the grass runway, 5 cm wide lines mark the runway edge, should also be 5 meters interval setting flags. In order to prevent athletes step should be small on the line, to the tilt, a 60 degree angle with the ground. Small size about 25× 20 cm 45 cm long, the most suitable. In the track along the outer edge protruding outside the runway length of 30 cm measurements. If there is no flange should be measured in line outside the outer 20 cm. 400 meters and 400 meters of the following track, each player should have a minimum width of the lane, lane is 1.22 meters, maximum 1.25 meters, lane width 5 cm, width should be the same in all lanes.
standard 400 meter plastic runway specified in the design size of the IAAF athletics facilities standards manual standard sports runway inner circumference of 400 meters, the bend radius should be 36.5 meters straight along the north-south direction, to avoid the sun position low when the dazzling effect. The curve should be 8 tracks, each track is 1.22 meters wide, straight road 10 lane. Should be measured according to the provisions of the second paragraph of the first lane length, the other lane length should be outside the outer edge at the inner side of the lane line at 20 cm were measured. In addition to the grass runway, the runway is suitable material to process along the boundary. Process along the height of about 5 cm, width 5 cm at least.
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