What do the diagonal yellow lines on a road typically indicate?

Diagonal yellow lines on a road serve as a warning to drivers that the road is either narrowing or there may be an obstruction in the roadway. These lines are often used to alert drivers to changes in road conditions that could affect their travel, such as construction zones, merging lanes, or other types of hazards that require increased caution. It’s essential for drivers to recognize these markings as they indicate that they should be prepared to adjust their speed or position on the road to ensure safety. This is particularly important because failing to heed such warnings could result in accidents or near misses, especially in areas where visibility may be impaired due to the obstruction.