When is it illegal to turn left on a red light?

Turning left on a red light is illegal in specific circumstances to ensure traffic safety. It is essential to understand that turning left at a red light is only permissible when turning from a one-way street onto another one-way street, and even then, you must yield to all other traffic and pedestrians.

When there is oncoming traffic, it creates an unsafe situation because vehicles traveling straight have the right of way, which could lead to collisions. Therefore, if oncoming vehicles are present, making a left turn would be illegal.

Additionally, if a sign prohibiting such a turn is present, it indicates that a specific regulation has been put in place for that intersection to enforce safety. These signs are vital as they help in guiding drivers to follow the local traffic rules and regulations, ensuring that turns are only made where it is safe and allowed.

Combining both situations—coming into conflict with oncoming traffic and the presence of signs that state otherwise—highlights the importance of adhering to traffic laws to prevent accidents and ensure the smooth flow of traffic.