Do the provisions in ADAAG 4.5.4 apply to walking surfaces in play areas?
Yes. ADAAG 4.5.4 applies to accessible routes that connect to ground level play components and that provide ramp access to elevated play components. ADAAG 4.5.4 requires gratings or openings located along walking surfaces to have openings or spaces no greater than inch wide. If gratings or openings have elongated openings, they must be placed so the long dimension is perpendicular to the dominant direction of travel. This applies to elevated platforms and decks on composite play structures where ramp access is provided on the structure. Decking or platform surfaces that are part of a transfer system connecting accessible elevated play components are not required to comply with ADAAG 4.5.4.