What does a steady yellow light indicate to vehicular traffic?

A steady yellow light serves as an important warning to drivers, indicating that the traffic signal is about to change to red. This is a signal to prepare to stop, unless it is unsafe to do so. The primary intention is to alert drivers who are approaching the intersection that they need to make a judgment call about whether they can safely stop or if they are too close to the intersection to stop safely without risking a collision.

The clarification that a yellow light indicates a transition to red is crucial for maintaining safety at intersections. This helps prevent accidents by informing drivers to be ready to stop if they have not already entered the intersection. Understanding this mechanism is vital for safe driving and compliance with traffic signals.