USAREUR Practice Exam

In determining the order in which vehicles may proceed through an intersection, various factors must be considered, including traffic rules and the positioning of the vehicles. The correct sequence, 1-2-3, suggests that vehicle 1 has the right of way, allowing it to proceed first.

This order can reflect common traffic regulations where vehicles on certain roads or lanes have priority over others, such as vehicles on a main road having precedence over those on a side road. The position of vehicle 1 in this scenario indicates that it is possibly at the end of a road that has priority or is at a stop sign, allowing it to move first.

The following vehicles, 2 and 3, then proceed afterward based on their relative positions and any existing traffic control devices, such as stop signs or traffic lights, which would dictate their order of movement. Understanding the flow of traffic laws contributes to safe and efficient intersection navigation, as indicated by this sequence.