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.
Traffic lights, also known as traffic signals, traffic lamps, traffic semaphore, signal lights, stop lights, robots (in South Africa), and traffic control signals (in technical parlance), are signalling devices positioned at road intersections, pedestrian crossings, and other locations to control flows of traffic.