2009 Edition Part 3 Figure 3B-8. Examples of Dotted Line and Channelizing Line Applications for Exit Ramp Markings (Sheet 1 of 2)
Figure 3B-8. Examples of Dotted Line and Channelizing Line Applications for Exit Ramp Markings (Sheet 1 of 2)
This figure illustrates three examples of dotted line and channelizing line applications for exit ramp markings, A, B, and C. The figure is composed of two sheets.
Sheet 1 of the figure shows two vertical highways, examples A and B:
- A legend shows a black arrow indicating the direction of travel in the lanes.
- Example A, parallel deceleration lane, shows the two lanes of one direction of a divided highway. Arrows indicate that the direction of travel is from the bottom of the figure to the top. A solid yellow line is to the left of the leftmost through lane, a solid white line separates the rightmost travel lane from the right shoulder, and the through lanes are separated from each other by a broken white line. Near the bottom of the figure, a deceleration lane is added to the right of the two through lanes, leading to a right exit ramp. The deceleration lane runs parallel to the through lanes and is separated from them by a dotted white line. Notes state: "Normal width dotted lane line or dotted extension of right-hand edge line is optional in deceleration lane taper" and "Normal width dotted white lane line from upstream end of full width deceleration lane to theoretical gore or to upstream end of optional solid white lane line." The dotted white line changes to a solid white line in advance of the theoretical gore. It is labeled as a "wide or normal width solid white lane line (optional, variable length) or normal width dotted white lane line." At the theoretical gore, the dotted white line becomes wide solid "white channelizing lines" that then form a white triangle or neutral area in front of the physical gore. This triangle is shown with "optional white chevron markings in the neutral area." The exit ramp curves away to the right.
- Example B, tapered deceleration lane, shows the two lanes of one direction of a divided highway. Arrows indicate that the direction of travel is from the bottom of the figure to the top. A solid yellow line is to the left of the leftmost through lanes, a solid white line separates the rightmost travel lane from the right shoulder, and the through lanes are separated from each other by a broken white line. Near the bottom of the figure, a deceleration lane is added to the right of the two through lanes, leading to a right exit ramp. The tapered deceleration lane immediately angles away from the through lanes and is separated from them by a dotted white line, noted as an "optional normal width dotted white extension of right-hand edge line." At the theoretical gore, the dotted white line becomes wide solid "white channelizing lines" and another wide solid white line angles off along the left edge of the exit ramp, forming an elongated white triangle or neutral area in front of the physical gore. This triangle is shown with "optional white chevron markings in the neutral area." The exit ramp angles off to the right.
Continue to: Sheet 2
