The SLED US is MASH Tested TL-3 End Treatment, designed to deform and rupture on impact, absorbing the energy of the impacting vehicle. The SLED US can be connected to several barrier systems in use in New Zealand; Concrete Barriers (MASH TL-3) and the TrafFix Sentry II Water Cable Barrier(MASH TL-3). Under NCHRP - 350 the SLED US is also accepted for shielding the blunt end of steel barriers. It is free standing and can be installed quickly, reducing worker exposure time. It does not require foundation anchor bolts to be attached to the road.
Please refer to the NZ Transport Agency's M23 Appendix C for specifications on barriers / end treatments, including site assessments, design guidelines and general notes for water-filled barriers.