The shadows would appear wrong when lit by headlights, which might be a little bit disorienting. The shadows are rendered as if a light was high overhead. I th

The shadows would appear wrong when lit by headlights, which might be a little bit disorienting. The shadows are rendered as if a light was high overhead. I think the illusion would still work fine, but feel subtly "wrong" to the driver. Probably good enough to get people to slow down, though.