I have many of my friends doing civil engineering and handling lot of projects. One of my friend is dealing a project of commercial playground equipment and I will be helping him. Some years ago, he was involved in the same project but it almost ruined his career. The playground was so dangerous that 2 kids suffered serious injury. Now, we are focusing and concentrating on those problems. As they are children, they don't much care about anything and these playgrounds are specially for children. So, the engineers involved in these projects should be more conscious and they should use more reliable good quality materials.