SWITCH THE SOUND TO HEAR THE DIFFERENCE!
Steel roll imitating a forklift wheel reveals the difference between passing through an open straight joint gap and an open sinusoidal joint gap.
An impact to the edge of an open straight expansion joint generates vibrations and shocks - which eventually damage the expansion joint itself, concrete just behind the expansion joint, forklift wheels and transported goods.
The sinusoidal form of the joint gap eliminates the occurrence of wheel hits in
open edge of expansion joints, i.e. eliminates the cause of all damage and problems.