How many seconds are required to make a left turn and join traffic?

The time required to make a left turn and join traffic can vary significantly based on factors such as traffic conditions, the speed of oncoming vehicles, and the specific intersection layout. Generally, it might take anywhere from 5 to 15 seconds to safely complete a left turn, but this can be longer in heavy traffic or if a signal is involved. Drivers should always assess the situation carefully to ensure a safe maneuver.