Left-Turn Accommodations at Unsignalized Intersections (2013) / Chapter Skim
Currently Skimming:
Pages 23-29
The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.
From page 23... ...
23 Introduction Traffic controls are important complements to the geometric design of unsignalized intersections. Signs, signals, and markings should conform to guidance set forth in the Manual on Uniform Traffic Control Devices (MUTCD)
|
From page 24... ...
24 Word messages should be as brief as possible. Abbreviations should be kept to a minimum.
|
From page 25... ...
25 be used frequently because their use promotes efficient operations by keeping road users informed of their location. Signs should not interfere with each other and should be placed where they are not obstructed by poles or trees.
|
From page 26... ...
26 they will be located on the far right side of the intersection along the major street. Example applications are available in the MUTCD (20)
|
From page 27... ...
27 Pavement markings should be integrated into the physical design. Key elements include: • Through and left-turn lane widths, • Required left-turn lane storage lengths, and • Transition markings for lanes guiding through traffic around left turns and shadowing the left-turn lane.
|
From page 28... ...
28 • The fluorescent lamp is no longer used for new roadway lighting installations but is still utilized for tunnel and sign lighting. Its large size makes it difficult to obtain good light control in a reasonably sized luminaire.
|
From page 29... ...
29 The following factors should be considered in assessing intersections for lighting: • Intersection location (urban, suburban, or rural) ; • Functional classification of the approach roads; • Intersection visibility, especially nighttime approach visibility; • Street geometry, including merging lanes, curves, and grades; • Intersection channelization, including the presence of physical medians; • Presence of lighting on approaches; • Traffic volumes and speeds; • Pedestrian and bicycle volumes; and • Intersection safety (night-to-day crash ratios)
|
Key Terms
This material may be derived from roughly machine-read images, and so is provided only to facilitate research.
More
information on Chapter Skim is available.