Plots road geometries colored by an augmented numeric column (e.g., posterior mean predictions or relative congestion).
plot_traffic_map(roads_aug, fill = c("predicted_mean", "relative_congestion"))An invisible copy of `roads_aug`, returned as an `sf` object with the augmented columns. The function is called for its plotting side effect.
An `sf` object returned by [augment_roads()].
Character scalar. Which column of `roads_aug` to map. One of `"predicted_mean"` or `"relative_congestion"`.