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Full-size image of Figure 3B-11, sheet 1 of 2

Figure 3B-11. Examples of Extensions through Intersections (Sheet 1 of 2)

This figure illustrates four examples of extensions through intersections or interchanges, (a), (b), (c), and (d). The figure is composed of two sheets.

  1. Sheet 1 of the figure shows two roadway intersections, examples (a) and (b). A legend shows a black arrow indicating the direction of travel in the lanes and a double asterisk denoting "arrows required where through lane becomes mandatory turn lane":
  • The first example is labeled "a - Typical pavement markings with offset lane lines continued through the intersection and optional crosswalk lines and stop lines" A note states "Lane line extensions may be dotted or solid lines":
    • This figure shows the intersection of a two-lane horizontal roadway with a vertical roadway with four southbound lanes. Arrows show that the direction of travel is two way on the horizontal two-lane roadway and one way to the south on the vertical four-lane roadway. The two-lane roadway has a double solid yellow line dividing the two lanes and solid white stop lines across the approach lane on each side of the intersection.
    • The four lanes on the south side of the intersection are offset to the right of the four lanes on the north side of the intersection. Broken white lines separate the four lanes on each side of the intersection. Through the intersection, the lanes are separated by dotted white lines.
    • On each side of the intersection on each roadway are two parallel solid white lines denoting crosswalks.
  • The second example is labeled "b - Typical pavement markings with optional double-turn lane lines, lane-use turn arrows, crosswalk lines, and stop lines" A note states "Lane line extensions may be dotted or solid lines":
    • This figure shows the intersection of a three-lane horizontal roadway with a three-lane vertical roadway. Arrows show that the direction of travel is one way to the east on the horizontal roadway and one way to the north on the vertical roadway.
    • The left side of the horizontal roadway is composed of two through lanes (the right and middle lanes), a combination straight or left-turn lane, and an added fourth (left-turn only) lane, and a straight or left-turn lane. The two turn lanes are separated from each other by a solid white line, and the through lanes are separated from each other by broken white lines. White turn arrows are marked in the turn lanes. A double asterisk denotes that the turn arrows are required for the far left turn lane. As the lanes approach the intersection, the broken white lines become solid white lines. A solid white stop line is marked across all eastbound and northbound approach lanes at the intersection. The solid white line separating the far left turn lane from the combination through-left turn lane is extended through the intersection, starting beyond the west crosswalk and curving 90 degrees to the left and is omitted inside the north side crosswalk, to join the lane line that separates the left and center lanes of the northbound roadway on the north side of the intersection. On the east side of the intersection, there are three through lanes separated by broken white lines.
    • The part of the northbound roadway on the south side of the intersection is composed of two through lanes (the left and middle lanes), a combination through or right turn lane, and an added fourth right-turn lane. The two turn lanes are separated from each other by a solid white line, and the through lanes are separated from each other by broken white lines. White turn arrows are marked in the turn lanes. A double asterisk denotes that the turn arrows are required for the far right turn lane. As the lanes approach the intersection, the broken white lines become solid white lines. A solid white stop line is marked across all northbound and eastbound approach lanes at the intersection. The solid white line separating the far right turn lane from the combination through-right turn lane is extended through the intersection, starting beyond the south crosswalk and curving 90 degrees to the right and is omitted inside the east side crosswalk, to join the lane line that separates the right and center lanes of the eastbound roadway on the east side of the intersection. On the north side of the intersection, there are three through lanes separated by broken white lines.
    • On each side of the intersection on each roadway are two parallel solid white lines denoting crosswalks.

Continue to: Sheet 2

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