MASH Validation Testing of Low Profile Barrier

The Florida low profile barrier—consisting of multiple interconnected portable concrete segments—is typically utilized in construction zones to separate traffic from construction activities. The original development and validation (crash testing) of the barrier were in accordance with applicable standards at the time (NCHRP Report 350). In the present study, the performance of the Florida low profile barrier was re-assessed in accordance with the current requirements of the AASHTO Manual for Assessing Safety Hardware (MASH), specifically at Test Level 2 (TL-2) impact conditions. Numerical finite element simulations of vehicle-barrier impacts were used to estimate barrier performance, and full-scale MASH compliant crash testing was used to experimentally validate barrier performance. Full-scale crash testing, conducted using MASH-compliant test vehicles (1100-kg car and 2270-kg pickup truck), demonstrated that the Florida low profile barrier satisfactorily met all required MASH performance criteria (vehicle redirection, stability, and roll angle; and occupant risk) for longitudinal barrier tests 2-10 and 2-11. The full text of this report is available onlne at https://fdotwww.blob.core.windows.net/sitefinity/docs/default-source/research/reports/fdot-bdv31-977-129-rpt.pdf?sfvrsn=a8fff718_2