Hiding Overlaps

If there are unavoidable overlaps, such as in a curved pathway for example, you can hide it by moving every other object up or down in elevaion. Use a ctrl+shift click movement (0.01m), whch is virtually too small to notice. Only attempt this with grounded objects (paths, landscaping, etc), or walls which have depth to them (not the pp type walls for example).

Alternatively you can try to apply a small pitch rotation instead.