ERIC Number: ED182056
Record Type: Non-Journal
Publication Date: 1978-Sep
Reference Count: N/A
Public Playground Equipment: Impact Attenuation Performance of Surfaces Installed Under Playground Equipment. Draft.
Mahajan, Bal M.; Beine, William B.
The objectives of this research effort were 1) to develop a methodology for assessing the impact attenuation performance of surfaces in relation to head injury, and 2) to test surfaces commonly installed under playground equipment to determine which surfacing materials, if any, are capable of providing protection against head injury that might result when a child falls from equipment and impacts the surface. Due to the large variety of surfaces that can be installed under equipment, it would be impractical to test all such surfaces. Therefore, it was decided to test eleven commonly used surfacing materials, with some materials comprising two or three surfaces depending upon the depth of materials. The impact attenuation performance of surfaces, in relation to head injury due to falls from playground equipment, was tested by dropping an instrumented American National Standard Institute (ANSI) headform on the surface and measuring the acceleration response of the headform. As the impact attenuation performance criterion, it is proposed that a surface should not impart a peak acceleration in excess of 200 g's (acceleration due to gravity) to the instrumented ANSI headform. Surfaces composed of six inches of loose materials such as pine bark, sand, shredded tires and shredded wood bark imparted peak accelerations which were below this limit for drop heights up to 10 feet. Surfaces composed of one layer of unitary material exceeded the criterion at drop heights of 5 feet or less. (Author/RH)
Publication Type: Reports - Research
Education Level: N/A
Authoring Institution: National Bureau of Standards (DOC), Washington, DC.