Selection and Placement Guidelines for Test Level 2 Through Test Level 5 Median Barriers
The variety of median widths and terrains combined with evolving testing specifications and lack of
conclusive data on median crossover crashes have been obstacles to developing median barrier guidance.
The TRB National Cooperative Highway Research Program's
NCHRP Research Report 996: Selection and Placement Guidelines for Test Level 2 Through Test Level 5 Median Barriers
develops, in a format suitable for consideration and possible adoption by AASHTO, proposed guidelines for the
selection and placement of
Manual for Assessing Safety Hardware (MASH) Test Levels 2 through 5 (TL2-TL5)
median barriers.
This Summary Last Modified On: 8/2/2022