
Figure 3B-7. Example of Two-Way Left-Turn Lane Marking Applications
This figure illustrates two-way left-turn lane marking applications.
A vertical five-lane roadway is shown. Black arrows show that the
direction of travel is southbound in two left lanes and northbound
in two right lanes. A fifth lane is in the center. A solid white
line is marked on the right edge of each side of the roadway. Along
the entire length of the figure (except within intersections), a
broken white line separates the two southbound through lanes and
a broken white line separates the two northbound through lanes.
At the top of the figure, the innermost southbound through lane
is separated from the center lane by a solid yellow line. A broken
yellow line is east of it just inside the center lane. Another broken
yellow line is on the east side of the center lane adjacent to a
solid yellow line separating it from the innermost northbound through
lane.
A horizontal street is shown intersecting the vertical roadway,
labeled "minor cross street." South of this intersection,
the markings separating each of the lanes are shown continuing in
the same pattern as north of the intersection. In the center lane,
a white left-turn arrow is shown curving to the south and east.
Just beyond it, another white left-turn arrow is shown curving to
the north and west. The dimension between these two arrows is labeled
"Typical Spacing, 2.4 - 4.9 m (8 - 16 ft)." An asterisk
next to each arrow denotes optional.
In the middle of the figure, a wavy white line across the width
of the roadway indicates a discontinuity. South of this line, a
second set of opposing white left-turn arrows is shown in the center
lane. An asterisk next to each arrow denotes "optional."
Just south of these arrows, the broken yellow lines in the center
lane are not shown. After a short distance, a second solid yellow
line is shown adjacent to the solid yellow line separating the center
lane and the innermost northbound through lane. Beyond this point,
a solid white line is shown separating the center and the innermost
southbound through lane, and a white left-turn arrow is shown in
the center lane, curving to the south and east. An asterisk next
to the arrow denotes "optional."
Just below the left-turn arrow, an intersection is shown of the
vertical roadway with a horizontal street labeled "major cross
street." South of this intersection, another white left-turn
arrow is shown in the center lane, curving to the north and west.
An asterisk next to the arrow denotes "optional." South
of the intersection, a solid double yellow line separates the center
and the innermost southbound through lane, and a solid single white
line separates the center and the innermost northbound lane.
A legend shows a black arrow indicating the direction of travel
in the lanes, and an asterisk indicates optional.
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