Arizona Drivers License Practice Test

The presence of signs posted at the intersection is a definitive indicator that left turns might be prohibited. These signs are placed to provide clear instructions and regulations to drivers, ensuring their safety and maintaining the flow of traffic. They can include "No Left Turn" or similar wording, communicating to motorists that making a left turn at that specific intersection is not permitted. While traffic signals can suggest whether you should stop or proceed, they may not specifically address turn restrictions, and lane markings are typically more focused on directing traffic on the road rather than indicating specific turn prohibitions. The position of other vehicles may also give an informal cue about the appropriateness of a left turn, but it is not a reliable or official source of guidance. Therefore, posted signs are the most direct and authoritative means of indicating potential turn restrictions at an intersection.