THE INSTALLATION PROCESS
Base Construction
Construction of a running track begins by building, essentially, a secondary roadway. A typical section consists of 6”–8” of a typical DOT stone base with two lifts of asphalt. Overall thickness of the asphalt should be nominally 3” with a 1.5”–2” base course plus a 1”–1.5” surface course. The wear course should be a smoother surface mix to create a better bond between the synthetic track surface and the asphalt.
Asphalt is crucial to constructing a regulation track per the standards set forth by the governing bodies of NFHSA, the IAAF, and ASBA. Particular attention needs to be paid on the slope and planarity requirements. To insure long life and integrity the base and asphalt should be bonded by an interior and exterior concrete curb.
A 400-meter regulation 8 lane track with typical sized event areas will be approximately 5,500 square yards in size. It is preferred that runways and throwing pads be constructed of concrete rather than asphalt.
Drainage
Adequate drainage is crucial to maintaining the integrity and longevity of a synthetic track surface and its sub-base materials. Nationally most running tracks are designed with an integrated perimeter grated or slotted surface drainage system. This runs along the entire inside perimeter of the track and acts primarily as a catch and discharge of storm water sheet flow across the track. It can also perform as a water collection apparatus for the athletic field.
Benefits of a continuous inlet drain are; superior drainage, increased field of play, no hazardous point inlets located on the field, a good buffer zone for turf encroaching on the track surface, aesthetically outlines the track.
Maintenance
Keep track clean and free of dirt and debris, including and especially any petroleum by-products, which will damage and deteriorate the track. No vehicular traffic should be allowed, and protective measures should be used when maintenance vehicles such as ride on mowers are driven across the surface. Care should be taken when grass trimmers, edgers, and mowers are used near the track edge as they have the tendency to clip the surface.
For most track systems, re-striping of lines will need to be considered after the 3rd or 4th track season.
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