Application of Dynamic Lane-Use Control: Proposed Practices (2022) / Chapter Skim
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G-1 Recommended Changes to the MUTCD A P P E N D I X G The research team recommends a new and separate chapter or section concerning dynamic laneuse controls for ATM applications. The current material in Chapter 4M is specific to reversible flow arterial applications and assumes a signal head as the display device.
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G-2 Application of Dynamic Lane-Use Control: Proposed Practices Option: 03 Lane-use control signals signs may also be used if there is no intent or need to reverse lanes, but when there is a need to indicate the open or closed status of one or more lanes, such as: A On a freeway, if it is desired to open or close certain lanes at certain hours to facilitate the merging of traffic from a ramp or other freeway; B
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Recommended Changes to the MUTCD G-3 Steady downward green arrow A road user is permitted to drive in the lane over which the arrow sign is located. Steady downward yellow diagonal arrow A road user is to prepare to vacate the lane over which the sign is located because a lane control change is being made to a steady red X symbol.
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G-4 Application of Dynamic Lane-Use Control: Proposed Practices 03 Each reversible lane that also operates as a two-way or one-way left-turn lane during certain periods shall have signal faces that also include the applicable WHITE TWO-WAY LEFT-TURN ARROW or WHITE ONE WAY LEFT-TURN ARROW symbol. 04 Each non-reversible lane immediately adjacent to a reversible lane displaying a red X shall have sign phases signal indications that display a DOWNWARD GREEN YELLOW ARROW to traffic traveling in that adjacent lane in the permitted direction and a RED X to traffic traveling in the opposite direction.
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Recommended Changes to the MUTCD G-5 faces with nominal height and width of 18 inches may be used for the WHITE TWOWAY LEFT-TURN ARROW and WHITE ONE-WAY LEFT-TURN ARROW signal faces. 14 Other sizes of lane-use control signal sign faces larger than 18 inches with message recognition distances appropriate to signal sign spacing may be used for the DOWNWARD GREEN ARROW, YELLOW X, and RED X signal sign faces.
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G-6 Application of Dynamic Lane-Use Control: Proposed Practices Refer to Section 2L.04 Design Characteristics of Changeable Message Signs for guidance on size, brightness, and pixel density of changeable message signs. Guidance for specific applications: 1.
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