anti-ram passive raid barrier protection bollards fence panorama, brand new yellow black pattern ram protective perimeter

access anchored anti antiram areas assistance attack attacks barrier barriers black bollard bollards brand closeup concept control cover critical crowd crowded densely detailed distance enforcement extremists fence gatherings harm hazard heavy horizontal impact incidents injury isolated large law location mass new panorama panoramic parking passive pattern pedestrians perimeter places populated potential premises protection protective raid ram ramming ramraids reinforced risk safe safety secure security sidewalk site solution standoff steel street terrorist terrorists threat traffic vehicle vehicular violent walking yellow zones