Not sure if it will help the traffic flow, but it would help cut down on accidents. I would NOT allow left-hand turns anywhere on Telegraph EXCEPT at the lights, and the middle turning lane. IE: NO left-hand turns out of any area, like McDonalds, Burger King, Meijers, etc. I believe that alone would cut the accident rate by 75% or more. Just imagine, you are turning left out of McDonalds, and someone is coming up the middle turn lane, at the same time someone is turning left out of Burger King............ With 2 lanes of traffic hindering your view this is why you should not attempt a left-hand turn. Turn right and go into Meijers, and come back out on Stewart, or into Arbys, back to out on Stewart and turn at the light. Also DO NOT use the middle turning lane as a mergeing lane. You can get a ticket for this.
Stop and think about this. If only right-hand turns were allowed, you would not have to worry about the "Hidden traffic". Slow down, take that extra few minutes, and make those turns safely.