What rule applies at unmarked intersections?

At unmarked intersections, the "right before left rule" applies. This means that when approaching an intersection without any traffic signs or signals, a driver must yield to vehicles coming from their right. This rule encourages a predictable flow of traffic and helps prevent accidents in situations where drivers might otherwise be unsure of who has the right of way.

The rationale behind this rule is based on the principle of ensuring that the vehicle with less potential conflict—typically the one on the right—has priority, thereby facilitating smoother navigation through intersections. It emphasizes the importance of anticipating the actions of other drivers and being prepared to yield when necessary.

Other rules mentioned, such as left before right or first come, first served, do not apply in the same way at unmarked intersections, as these could lead to confusion without established traffic control. The speed limit rule, while important for safe driving, does not directly govern right of way in intersection scenarios.