Face-on view of the mean H I emission intensity (〈I〉; left) and the filament orientation quantified by the projected Rayleigh statistic (V; right). Values of V > 2.87 or V < −2.87 indicate a statistical significance above 3σ in the preferential orientation around θ = 0° or θ = 90°, respectively. The yellow circular marker indicates the position of the Sun. The overlaid curves correspond to the spiral arm models identified in Reid et al. (2019), shown in black color, and their extrapolation to larger Galactocentric radii, shown in green.