What do the two following traffic signs have in common?

1. They both belong to the information-signs group and alert about the road’s condition.
2. Correct answer: They both advise the driver to slow down and be more alert.
3. Traffic sign 101 is always placed before traffic sign 144.
4. Traffic sign 144 is always placed before traffic sign 101.

WhyBoth sign 101, Uneven road, and sign 144, Speed bump, tell you to slow down and be more careful. Neither has priority over the other.