The option for using passenger car test vehicles older than six years is removed.The light-truck test vehicle must have a minimum center of gravity height of 28 inches.The single-unit truck mass is increased from 8,000 to 10,000 kilograms.
#CONCRETE BARRIER MANUAL#
At that time, the MASH 2009 manual replaced an existing 1993 roadside safety device report developed by the Transportation Research Board (TRB) through the National Cooperative Highway Research Project (NCHRP) report NCHRP 350, “Recommended Procedures for the Safety Performance Evaluation of Highway Features.” 1 MASH was first published by the American Association of State Highway and Transportation Officials (AASHTO) in 2009. Recent developments and the implementation of MASH 2016 have had a major impact on precast concrete producers who manufacture traffic barriers. However, for those involved with transportation projects and construction, the acronym refers to the Manual for Assessing Safety Hardware, which presents guidelines for permanent and temporary roadside barriers including precast concrete barriers. When most people hear “MASH,” they think of the popular television show based on the antics of a Mobile Army Surgical Hospital unit in the Korean War. It also recommends evaluation criteria to assess these test results. MASH provides guidelines for crash- testing roadside barriers, including precast concrete barriers.