Notes for Figure 6H-23—Typical Application 23 Left-Hand Lane Closure on the Far Side of an Intersection


1. If the work space extends across a crosswalk, the crosswalk should be closed using the information and devices shown in Figure 6H-29.


2. Flashing warning lights and/or flags may be used to call attention to the advance warning signs.

3. The normal procedure is to close on the near side of the intersection any lane that is not carried through the intersection. However, when this results in the closure of a left lane having significant left-turning movements, then the left lane may be reopened as a turn bay for left turns only, as shown.


4. By first closing off the left lane and then reopening it as a turn bay, the left-turn bay allows storage of turning vehicles so that the movement of through traffic is not impeded. A left-turn bay that is long enough to accommodate all turning vehicles during a traffic signal cycle will provide the maximum benefit for through traffic. Also, an island is created with channelizing devices that allows the LEFT LANE MUST TURN LEFT sign to be repeated on the left adjacent to the lane that it controls.