Number densities of RGs with a given radio luminosity l_ν, as a function of Cosmic Web density at the 2.9 Mpc h⁻¹ scale. The number density functions reflect conditions in the Local Universe, and are given relative to the cosmic mean number density at l_ν. The solid curves reflect the posterior mean, whilst the shaded areas around the mean denote −1 to +1 posterior standard deviation ranges. We used flexible voxel method densities.