On 4100 South there is a new cement center barrier due to the new corridor going in next to the high school. The barrier is open near the seminary building then cuts so that no left turn into the HS entrance (from 4100 S). But people are cutting into oncoming traffic to turn left into the HS parking lot. With two lanes turning right out of the parking lot and people cutting across to turn left, it's an accident waiting to happen. There isn't enough room for the left turns. A sign or more barrier is needed to keep us all safe.