What should the vehicle on the left do when two vehicles arrive at an unregulated intersection at the same time?

When two vehicles arrive at an unregulated intersection simultaneously, the general rule is that the vehicle on the left must yield the right of way to the vehicle on the right. This rule is in place to promote safety and ensure a smooth flow of traffic at intersections where no signs or signals are present to dictate right-of-way.

This principle is rooted in the idea that yielding to the vehicle on the right helps to reduce the risk of collisions by clearly defining who should proceed first. It is a foundational rule in many driving regulations and is especially important at unregulated intersections where drivers must rely on common traffic laws rather than traffic signals or signs.

Options that suggest proceeding without stopping, speeding up, or waiting for traffic lights do not align with the established right-of-way rules, as they either neglect the necessity to yield to other drivers or rely on erroneous traffic control assumptions. Therefore, the expectation is for the vehicle on the left to recognize the right-of-way of the vehicle on the right and to yield accordingly.