Grid search: Which statement best describes it?

• A. Overlaps a series of lanes in a cross pattern
• B. It is a variation of strip/line search and overlaps lanes
• C. It uses only straight-line sweeps
• D. It is only used indoors

Answer: (B)

Grid search builds on the idea of sweeping a space with straight passes, but it adds a grid by dividing the area into equal lanes and making passes that overlap. This overlap is essential because it ensures no gaps are left between lanes, so every part of the area gets covered more thoroughly. The grid pattern means you sweep in multiple directions across the same zones, not just a single direction, which increases the chances of finding something that might be tucked into corners or along edges. This method isn’t restricted to indoors; it’s used both indoors and outdoors depending on the space and objective. In short, it’s a variation of a strip/line search that uses overlapping lanes laid out in a grid to achieve complete coverage.