A variation of the strip/line search pattern; it overlaps a series of lanes in a cross pattern, making the search more methodical and thorough?

• A. Spiral search pattern
• B. Cross-pattern search
• C. Lane overlap search
• D. Grid search pattern

Answer: (D)

Grid search pattern focuses on thorough, two-dimensional coverage of an area by using two sets of overlapping, parallel sweeps in perpendicular directions. This method deliberately crosses the first set of lanes with a second set, creating a grid that leaves little chance of missing any portion of the search area. The described variation—overlapping a series of lanes in a cross pattern to make the search more methodical and thorough—fits this approach because the cross-direction passes ensure intersection points and complete coverage. Spiral search concentrates on a central point and expands outward in loops, which isn’t the same as laying out intersecting lanes to form a grid. A cross-pattern alone implies a single cross line rather than the full two-direction grid, and a lane overlap term isn’t a standard description of the two-direction systematic coverage that grid search provides. In practice, grid search is used when you have a defined area and need to guarantee comprehensive coverage, with searchers aligned in a coordinated grid to maintain contact and ensure no gaps.