Based on testing conducted in 2003 at
the laboratories of the University Of Illinois Urbana-Champaign Center Of
Excellence for Airport Technology Affiliates Program, AvTurf synthetic turf is
able to accommodate the vertical flow of water at high rainfall rates, when it
is placed over a highly permeable layer. The results from three tests conducted
at average rainfall intensities of 5.5 inches per hour dramatically showed that
there was practically no surface runoff, as the majority of the rainfall passed
through the drainage layer beneath the turf. Traces of ponding or surface
runoff occurred only when the rainfall intensity rose to 8 inches per hour.
The same type of testing was conducted at an actual installation of AvTurf at
Baltimore Washington Thurgood Marshall Airport, where water intensities to
simulate rainfall were applied to the synthetic turf. These tests indicated
that even after high intensities of rainfall were induced, surface runoff and
ponding dissipated immediately as soon as the intensity decreased.
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