EC: ROCK_DROP
Status:
STD 2005/06/07
Code:
1013
Concept definition:
A massive assemblage of <
MATERIAL
>, usually in the form of large concrete blocks and/or cylinders, suspended above or beside a <
LAND_TRANSPORTATION_ROUTE
>, ready to be activated as a potential <
BARRIER
>; rock drop.
Reference type:
Reference:
Supplemental references:
Group membership:
LAND_TRNSP
TRNSP
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