Road barrier

A roadway barrier or guard rail system having a post and a horizontal beam or rail, wherein said horizontal beam or rail is mounted to said post by an intervening carriage,

• said carriage including at least one aperture for affixing the horizontal beam or rail to a rail side of said carriage,
• said carriage shaped to wrap horizontally around from a rail side to a non-rail side of at least a portion of a first vertical edge and/or a second vertical edge of said post to mount said carriage to said post and guide a sliding movement of said carriage along said post to dissipate energy during the collision, and
• at least one restraint or stop on said post separate from said carriage and above the at least one aperture for controlling an amount of force required to disconnect said carriage from said post or allow said carriage to continue to slide relative to said post after said carriage starts moving along said post during a collision,
• wherein after installation of said intervening carriage on said post there is a frictional and/or mechanical force engagement between said carriage and said post, said frictional and/or mechanical force is overcome when a predetermined breaking force is achieved during the collision.

A roadway barrier or guard rail system comprising:

• at least one rail;
• at least one post having at least one rail facing side and at least one non-rail facing side, said at least one post including
• at least one stop raised from a surface of one of said at least one rail facing side;
• and
• a carriage having at least one aperture for affixing one rail to one post, said rail configured to be attached to said carriage with a bolt, said carriage wraps around from a rail facing side to at least one of said at least one non-rail facing side, said carriage including a cross member and a pair of arms extending from opposite sides of said cross member, each of said arms are curved such that a distance between free ends of the arms are closer than a distance between a mid-curve of said arms, said arms and said cross member configured to facilitate the carriage to freely slide upward along the length of said post in the event of a collision, sliding movement of said carriage restrained by said at least one stop, and
• wherein said carriage configured to freely slide along a length of said post,
• said at least one stop configured for controlling an amount of force required to disconnect said carriage from said post or allow said carriage to continue to slide relative to said post after said carriage starts moving upward along said post during a collision, and
• said bolt does not contact said post during use prior to a collision.