ReDD

The Reduced Deflection Device (ReDD) is a proprietary plastic insert that has been crash tested with temporary concrete barrier to improve barrier deflection performance and provide consistent anchor rod installation.

  • Title – “MASH 3-10 on Longitudinal Barrier, X-Bolt Fixture”
  • Title – “MASH 3-11 on Longitudinal Barrier, X-Bolt Fixture”

The Pinned Cross-Bolt F-Shape Concrete Traffic Barrier is a MASH TL-3 system intended for installation along roadsides where a traffic barrier system is required, either permanent or temporary. The ReDD plastic insert is installed via recesses in the temporary concrete barrier. Anchor rods are then installed with epoxy to secure the longitudinal barrier system.

MASH Test 3-10:
A 1,100kg small car impacting the CIP and LON of the barrier at a nominal speed and angle of 100km/hr and 25 degrees, respectively. This test investigates a barrier’s ability to successfully contain and redirect small cars. The ReDD longitudinal barrier system performed acceptably under MASH TL-3 Criteria.

MASH Test 3-11:
A 2,270kg pickup truck impacting the CIP and LON of the barrier at a nominal speed and angle of 100km/hr and 25 degrees, respectively. This test investigates a barrier’s ability to successfully contain and redirect light trucks and sport utility vehicles. The ReDD longitudinal barrier system performed acceptably under MASH TL-3 criteria.

StandardCrash TestSpeedAngleVehicle WeightResult
EN 1317-2TB-110000 KM20 Degrees900 kgPass
EN 1317-2TB-320000 KM20 Degrees1500 kgPass
MASH3-100000 KM25 Degrees1,100 kgPass
MASH3-110000 KM25 Degrees2,270 kgPass