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Use of flared, non-blocked, MGS

Question
State IL
Description Text

Is it acceptable to flare the
non-blocked MGS?  If so, do we use the same guidance as for the MGS with
blockouts?  I don’t find any mention of this in the report or in the
consulting questions.



Road Closure Gates
Thrie Beam Guardrails



Date April 5, 2016
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Response
Response
(active)

MwRSF has never evaluated a flared, non-blocked, MGS installation.  Both the flared MGS and non-blocked MGS illustrated significant increases in vehicle snag, rail loading, and vehicle instability when evaluated as independent systems.  If the two were combined into a single system, these negative characteristics may further increase to unsatisfactory levels.  So, without further evaluation, we do not currently recommend installing a flared, non-blocked, MGS.


Date April 5, 2016
Previous Views (117) Favorites (0)