When driving on a one-way street, under what condition may you turn left onto another one-way street?

Turning left onto another one-way street is permissible when traffic on the street is moving to the left. This is essential because one-way streets are designed for traffic to flow in a single direction. By ensuring that the traffic is moving to the left on the street you are turning onto, you are aligning with the established direction and promoting safe driving practices.

This condition is critical for maintaining order and safety on the roadways, as turning left onto a one-way street that flows in the opposite direction could result in serious accidents. Following this guideline helps drivers navigate intersections and street changes without endangering themselves or others.