Schematic representation of the propagation setup. The size of the GD (violet region) is h ∼ 150 pc and the magnetic field lines are preferentially parallel to the GP. The CR transport perpendicular to the plane is dominated by the large-scale turbulence and is encompassed in the rigidity-independent diffusion coefficient D_h; the size of the GH (gray region) is H ∼ 4 kpc and the magnetic field lines are preferentially perpendicular to the GP. The CR transport perpendicular to the plane is dominated by resonant scattering on plasma waves, encompassed in the rigidity-dependent diffusion coefficient D_H, plus the contribution of advection in a wind of velocity u.