Roadway barrier and method of installation

A roadway barrier for absorbing energy from a moving vehicle comprising:

• a pair of longitudinally extending columns in side by side relation to each other with each column forming half of the barrier, each column including a plurality of elongate concrete half sections, placed end to end to each other, with the half sections of one column positioned in staggered relation to the half sections in the other column;
• a plurality of transverse impact absorbing connections spaced at selected intervals along the length of said columns to connect said columns of half sections to each other in a transverse direction;
• each of said elongate concrete half sections having a longitudinally extending passage extending between opposed ends of each half section and aligned longitudinally with similar passages in adjacent half sections;
• a cable secured within aligned passages of at least two adjacent half sections in each of said columns for longitudinally connecting said adjacent half sections;
• and
• anchor means having a lower end secured to said roadway and an upper end connected to said cable, said anchor means for moving transversely with said cable and associated half sections.

A roadway barrier system comprising:

• a pair of upstanding modules positioned in separate columns in a back to back relation to each other at a predetermined unrestrained position on the roadway;
• each module including a plurality of elongate half sections in end to end relation with half sections in one module being staggered relative to half sections in the other module;
• a cable for each module connected to the plurality of elongate half sections therein for securing said half sections to each other;
• anchor means secured to the roadway and connected to said cable, said anchor means moving transversely with said cable and associated half sections upon impact of a moving vehicle against the half sections;
• and
• transverse connecting means to connect said modules in said separate columns to each other at selected intervals along the length of said modules.

A method of installing a vehicle barrier on a roadway comprising:

• aligning a plurality of elongate half sections in end to end relation with each half section having an axial passage therethrough aligned axially with similar passages in adjacent half sections;
• inserting a connecting member within said aligned passages and anchoring the ends of said connecting member at the remote ends of said plurality of half sections to connect said half sections together for forming a module;
• positioning a plurality of modules in two back to back columns on the roadway with the modules in one column lapping the modules in the other column;
• and
• connecting half sections of the back to back modules in said two columns to each other in a transverse direction to tie the two columns together to form said barrier.

A method of installing a vehicle barrier wall on a roadway comprising:

• aligning a plurality of elongate half sections in end to end relation with each half section having an axial passage therethrough aligned axially with similar passages in adjacent half sections and having a transverse passage therethrough aligned transversely with similar passages in back to back half sections;
• inserting a cable within said aligned passages and anchoring the ends of said cable at the remote ends of said plurality of half sections to connect said half sections together for forming a module;
• anchoring said cable to the roadway;
• forming a plurality of modules with each module having a plurality of connected half sections;
• positioning said plurality of modules in two back to back columns on the roadway with the modules in one column lapping the modules in the other columns, the back to back modules having transversely aligned openings in adjacent back to back half sections;
• and
• inserting transverse connecting members in said transversely aligned passages and securing said transverse connecting members to the connected half sections to connect said columns together to form said barrier wall.