2009 Edition Part 2 Figure 2B-22. Example of Regulatory and Warning Signs for a One-Lane Roundabout
Figure 2B-22. Example of Regulatory and Warning Signs for a One-Lane Roundabout
This figure illustrates an example of regulatory and warning signs for a one-lane roundabout.
Notes state: (1) Signs shown for only one leg. (2) See Section 2D.38 for guide signs at roundabouts. (3) See Chapter 3C for markings at roundabouts.
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.
Four roadways enter the roundabout from the north, south, east, and west. Concentric bands of narrow green verges and curbing border the outsides of the roadways. Each roadway is a two-lane road. A triangular splitter island separates the two lanes of each road where it intersects the circular roadway. Around the outer edge of the circular roadway, a solid white line is shown across the base of each splitter island, a dotted white line is shown intersecting each of the four entering lanes, and no line is shown intersecting the four exiting lanes.
On each of the four roadways entering the roundabout, the opposing directions of travel are separated by a solid double yellow line. As each roadway approaches the splitter island, the two solid yellow lines diverge to go alongside the two sides of the splitter island. A crosswalk composed of a row of closely spaced white lines parallel to the flow of traffic is shown crossing both lanes and the narrow part of each splitter island.
On the roadway entering the circular roadway from the south, a sign assembly marked "optional" is shown to the right of the roadway and facing south. It is shown composed of a diamond-shaped yellow roundabout symbol sign mounted above a horizontal rectangular yellow plaque with the words "Front Ave." Farther north and opposite the splitter island, another sign assembly marked "optional" is shown to the right of the roadway on the green verge and facing south. It is shown composed of a diamond-shaped yellow walking person symbol sign mounted above a horizontal rectangular yellow plaque with a diagonal arrow pointing down and to the left. Just beyond this sign assembly, a crosswalk composed of a row of closely spaced white lines parallel to the flow of traffic is shown crossing both lanes and the narrow part of the splitter island. On the green verge on the left side of the roadway, another sign assembly marked "optional" is shown facing north. It is shown composed of a diamond-shaped yellow walking person symbol sign mounted above a horizontal rectangular yellow plaque with a diagonal arrow pointing down and to the left. North of the crosswalk, a yield line of white triangles is marked on the pavement across the lane of traffic entering the circular roadway in advance of the dotted white line. A YIELD sign assembly facing south is shown on the green verge to the right of the roadway adjacent to the YIELD line. Another YIELD sign facing south and marked "optional" is shown on the base of the splitter island.
Opposite the entering lane, a horizontal rectangular white sign with two black right-pointing chevrons is shown facing south on the green central island.
