If you've ever seen those squiggly black lines on paved roads, they are called tar snakes, but what do they do and are they always safe to drive over?

Town adds squiggly lines to problematic road to stop speeding by: Celeste Houmard. Posted: Apr 6, 2025 / 05:49 PM EDT. Updated: Apr 6, 2025 / 05:49 PM EDT. by: Celeste Houmard.

That didn’t last long. Squiggly lines that were meant to calm traffic on a busy road in Pennsylvania will soon be no more. News broke in early April about this strange attempt to slow cars ...