Notes for Figure 6H-24 and 6H-24A(CA) —Typical Application 24 Half Road 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. When turn prohibitions are implemented, two turn prohibition signs should be used, one on the near side and, space permitting, one on the far side of the intersection.


3. A buffer space may be used between opposing directions of vehicular traffic as shown in this application.

4. The normal procedure is to close on the near side of the intersection any lane that is not carried through the intersection. However, if there is a significant right-turning movement, then the right-hand lane may be restricted to right turns only, as shown.

5. Where the turning radius is large, a right-turn island using channelizing devices or pavement markings may be used.

6. There may be insufficient space to place the back-to-back Keep Right sign and No Left Turn symbol signs at the end of the row of channelizing devices separating opposing vehicular traffic flows. In this situation, the No Left Turn symbol sign may be placed on the right and the Keep Right sign may be omitted.

7. For intersection approaches reduced to a single lane, left-turning movements may be prohibited to maintain capacity for through vehicular traffic.

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

9. Temporary pavement markings may be used to delineate the travel path through the intersection.


10. Keeping the right-hand lane open increases the through capacity by eliminating right turns from the open through lane.

11. A temporary turn island reinforces the nature of the temporary exclusive right-turn lane and enables a second RIGHT LANE MUST TURN RIGHT sign to be placed in the island.

12. Figure 6H-24 is appropriate for situations where the approach is stop-controlled (Stop sign and/or red flashing beacons) due to the abrupt transition through the intersection.

13. Figure 6H-24A(CA) is appropriate for situations where the approach is uncontrolled or controlled by traffic signals.