The safety barrier is provided for delimiting two adjacent areas from one another on an open floor surface. The safety barrier includes a plurality of spaced-apart posts. Each post has a bottom portion releasibly connectable to the floor surface and has a vertically-extending upper portion. The safety barrier also includes at least one interconnecting segment located above the floor surface and transversally extending across a corresponding intervening space between each two successive ones of the spaced-apart posts. In use, when one of the posts and/or one of the interconnecting segments is/are subjected to an impact with a moving object, the connection between the impacted post and the floor surface and/or the connection between the impacted post and any interconnecting segment connected thereto and/or the connection between the impacted interconnecting segment and any one of the posts to which it is connected can be temporally discontinued.