Traffic barrier structure

A traffic barrier structure comprising:

• a plurality of posts fixedly installed at regular intervals along a median or roadside of a road;
• a plurality of guiderail units installed horizontally along the posts, each of the guiderail units including a plurality of longitudinally-aligned guiderails, each guiderail having a hollow cross-section, comprising a curved impact portion facing away from the posts, opposing upper and lower sidewalls, a flat abutment face facing the posts, and a longitudinal slot extending through the abutment face into an interior of the guiderail between opposing inwardly-bent slot sidewalls and longitudinally extending between opposing end portions of the guiderail, each guiderail including a connection part formed at each end portion thereof;
• a rail connector inserted into the connection parts of two neighboring guiderails to horizontally connect the two neighboring guiderails in series, the rail connector having a hollow cross-section closely conforming to the inner surfaces of the guiderails, comprising a curved portion facing away from the posts, opposing upper and lower sidewalls, a flat abutment face facing the posts, and a longitudinal slot extending through the abutment face into an interior of the rail connector and longitudinally extending between opposing end portions of the rail connector, the inwardly-bent slot sidewalls of the neighboring guiderails extending through the slot of the rail connector into the interior of the rail connector;
• and
• a holder unit disposed within the interior of the rail connector to be fastened to one of the posts, the holder unit comprising:
• a washer-shaped slot holder piece having opposing outwardly-bent sidewalls closely conforming to the sidewalls of the longitudinal slots of the guiderails and opposing flat sidewalls conforming to the abutment faces of the rail connector;
• and
• a pair of opposing deformation-resistant pieces bent perpendicular to upper and lower edges of the slot holder piece to closely conform to the upper and lower sidewalls of the rail connector to prevent deformation of the guiderails and enlargement of the slots upon a collision of a vehicle with the traffic barrier system,
• wherein the holder unit is coupled in the rail connector such that a fastening member extends through a hole in the slot holder piece and fastens the neighboring guiderails to the post.