(DOT), that tell you to keep your eyes on the road ahead. Warning signs might indicate something as simple as a right turn, but they can also alert drivers to an advisory speed on an exit ramp or a deer or cattle crossing.
These can indicate information, guidance, an evacuation route or services along the roadway, says the DOT. If you’re looking for a hospital, food, gas, lodging or a rest area, be on the lookout for signs that are blue.
Brown signs are meant to help guide you toward recreational sites or places of cultural interest, according to the DOT. Picnic areas, hiking trails, museums, swimming areas and fishing piers are all destinations that might be found by following brown signs.