2009 Edition Part 3 Figure 3C-12. Example of Markings for a Three-Lane Roundabout with Two-Lane Exits
Figure 3C-12. Example of Markings for a Three-Lane Roundabout with Two-Lane Exits
This figure illustrates markings for a three-lane roundabout with two-lane exits.
The figure shows a green central island surrounded by a circular roadway. A narrow band shown as composed of a contrasting pavement texture separates the island from the circular roadway. Optional diagonal yellow crosshatch markings are shown extending from the pavement around the central island into the circular roadway opposite the points where lanes enter the circular roadway.
Roadways are shown entering the roundabout from the north, south, east, and west. A narrow landscape buffer borders the outsides of the roadways. A triangular splitter island separates the opposing travel lanes of each road where it intersects the circular roadway. A crosswalk composed of a row of closely spaced white lines parallel to the flow of traffic is shown crossing all lanes and the narrow part of each splitter island.
Around the outer edge of the circular roadway, a solid white line is shown across the base of each splitter island, a wide dotted white line is shown intersecting each of the entering lanes, and no line is shown intersecting the exiting lanes.
The roadways entering the roundabout are shown with three lanes on the right side of the splitter island entering the roundabout and two lanes to the left exiting the roundabout. The lanes entering the roundabout are shown separated by a solid white line, and the lanes exiting the roundabout are shown separated by a broken white line, which changes to a solid white line on both sides of the crosswalk. White arrows are shown marked on the pavement of the each lane entering the roundabout in advance of the crosswalk. A left-turn arrow is shown marked on the pavement of the left lane, a two-direction arrow is shown marked on the pavement of the middle lane pointing to the left and straight ahead, and a two-direction arrow is shown marked on the pavement of the right lane pointing straight ahead and to the right.
The circular roadway is shown as three lanes, with a solid white line separating the lanes opposite the splitter islands and changing to a normal broken white line opposite the points where lanes from the roadways enter the roundabout. Two-direction white arrows pointing to the left and straight ahead are shown marked on the pavement of the left lane, and arrows pointing straight ahead are shown marked on the pavement of the middle and right lanes.