Safety barrier transition for providing an easily removable closure of road gaps

A transition between two fixed safety barriers, which can be either fully or partially easily opened, comprising a bilateral protective barrier including a plurality of longitudinal rigid element assemblies, each made by coupling two barrier sections by a hinge assembly, each longitudinal rigid element assembly comprising two longitudinal rigid elements, each longitudinal rigid element being supported two supporting sliding feet which can freely slide on a ground on which said barrier is installed, each said longitudinal rigid element comprising a contoured longitudinal strip and said hinge assembly comprising a single vertical removable pin engaged in preformed plates fixed to said longitudinal rigid elements, said vertical removable pin being adapted to be removed to remove one or more of said longitudinal rigid elements, at least some of said feet comprising a plurality of wheels, a lifting mechanism being moreover provided for adjusting a height of said wheels to contact said ground only as said bilateral protective barrier is opened by removing one or more of said longitudinal rigid elements, said lifting mechanism being coupled either to said feet or to said longitudinal rigid elements.