What does a "no left turn" sign indicate for drivers?

A "no left turn" sign clearly indicates that drivers are prohibited from making left turns at that intersection. This regulatory sign is in place to enhance safety and facilitate traffic flow. In situations where intersections are congested or where left turns might create hazards (for example, near busy intersections or where visibility is limited), the prohibition allows for more predictable movement for all road users. This rule contributes to preventing potential collisions, as other vehicles and pedestrians can anticipate that drivers will not be turning left, thus making the roadway safer for everyone.