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MGS Height Tolerance

Question
State KS
Description Text

Recently you crash tested the MGS at 34" that passed. Is it appropriate for me to say +- 3" for all the applications?

 

Also what metric height did you test the 34" system at?  I want to be consistent with actual measurement units in the RDG.

Keywords
  • Guardrail
Other Keywords none
Date October 19, 2010


Response
Response

MwRSF successfully crash tested the MGS at heights of 34 and 36 in. with the 1100C small car at TL-3 of MASH. This crash testing was at interior locations away from the end terminals. In addition, no 2270P crash testing has been performed. Our current concern is that the current end anchors may not be fully capable of handling the tensile loading imparting under TL-3 MASH conditions both at interior and end regions at the raised heights. Note that we already had increased foundation length in our existing anchorage hardware when the rail height increased from 27.75 to 31 in.

Date October 20, 2010


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