for example blending into a particular environment or provided with supports to carry additional barrier devices that are commonly seen around compounds facilities and homes such as barbed wire razor wire electric fence signs a continuous or pseudo continuous board above the top portion and substantially parallel to the uppermost interconnecting member or the like 0038 fig5 illustrates a side view of an exemplary embodiment of the plate 100 in an overturned position after for example contact by a vehicle thus in operation as a vehicle approaches from direction u201c a u201d as illustrated in fig1 and comes into contact with the barrier 1 the barrier 1 overturns with foot 30 acting as a fulcrum forcing foot 20 into the undercarriage of the vehicle with the top portion 10 engaging the ground surface 3 to facilitate stopping of the vehicle given the symmetric nature of the plate 100 regardless of the direction of impact the barrier 1 is capable providing the same type of stopping and undercarriage damaging characteristics in addition to foot 20 causing undercarriage damage to the vehicle the foot 20 is also capable of lifting the vehicle that struck the barrier 1 off the ground to further facilitate stopping 0039 fig6 illustrates a perspective view of an exemplary configuration of.