kidney function elevated. My doctor called and said that my kidney function was elevated just a little.
Caution.. It means that traffic approaching the yellow light has the Right-of-Way to proceed through the intersection, but a significant volume of traffic is, or may be, approaching from the cross street(s). The driver is thus warned to be wary of vehicles that may be entering or crossing the roadway.
A single yellow line on a two-lane, two-way road serves the  same purpose.   Some jurisdictions use yellow lines on one-way roadways or divided  highways to indicate the left edge of the roadway. . single yellow line on a two-lane, two-way road serves the  same purpose.   Some jurisdictions use yellow lines on one-way roadways or divided  highways to indicate the left edge of the roadway. .