Effective trap spacings for each σ, scaled by dividing trap spacings (4.71, 5.24, 6.40, and 9.60 km) by σ (1, 5, 10 km).

For example, a trap spacing of 4.71 km equals 4.71σ when σ = 1 km but only 0.47σ when σ = 10 km. Trap spacing of 9.60 km was not evaluated for the clustered trap configuration because it employs J = 32 traps and therefore is equivalent to the regular trap spacing.