NTTR is the ideal athletic track surface for facilities dedicated to both competition and training because it guarantees athletes the perfect combination of shock absorption, vertical deformation and energy return. Prefabricated Rubber Running Track (Outdoor Running Track) is A synthetic surfacing system comprised of a pre-fabricated rubber mat laid in a two-component polyurethane adhesive installed on a properly prepared asphalt or concrete substrate and fluid applied membrane waterproofing system.