Patent ID: 7837409
Filing Date: 2010-11-23
Classification: E01F

Abstract:
1. A system for arresting movement of a land-based vehicle in an area off-limits to land-based vehicles, comprising: a. a below-grade region comprising deformable material configured to (i) deform substantially under weight of a vehicle so as to arrest its movement and (ii) not deform substantially under weight of loads existing when a vehicle is not present, the deformable material (i) installed in the below-grade region as a bed having an entry end and a remote end opposite the entry end and (ii) remaining deformed after encountering weight of a vehicle; b. a region at or above grade (i) forming a boundary of at least a portion of the below-grade region and (ii) in which (A) a covering exists over at least a portion of the below-grade region so as to mask the presence of the below-grade region, (B) no above-grade wall or curb is present at or adjacent the remote end of the bed, and (C) the covering is configured to fail under weight of a vehicle sufficient so as to expose at least part of the below-grade region; and c. means, incorporated into the bed, for altering point-load characteristics of a vehicle so as to decelerate it within the bed.