Design Guidance for Channelized Right-Turn Lanes (2014) / Chapter Skim
Currently Skimming:
Pages 132-138
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 132... ...
Appendix B Revised Text on Channelized Right-Turn Lanes for the AASHTO Green Book This appendix presents revised text on channelized right-turn lanes for consideration by AASHTO for potential inclusion in a future edition of the AASHTO Policy on Geometric Design of Highways and Streets (1) , commonly known as the Green Book.
|
From page 133... ...
Types and Examples of Intersections General Considerations The basic types of intersections are the three-leg or T, the four-leg, and the multileg. At each particular location, the intersection type is determined primarily by the number of intersecting legs, the topography, the character of the intersecting highways, the traffic volumes, patterns, and speeds, and the desired type of operation.
|
From page 134... ...
Channelized Right-Turn Lanes Channelized right-turn lanes have a definite role in improving operations and safety at intersections. However, to achieve these benefits they should have consistent design and traffic control and should be used at appropriate locations.
|
From page 135... ...
Special Crosswalk Signing and Marking Marked crosswalks are the primary means of indicating the presence of a pedestrian crossing. However, drivers do not always yield the right-of-way to pedestrians simply because they are in a crosswalk.
|
From page 136... ...
Radius of Turning Roadway Design criteria for the radii of channelized right-turn roadways are a function of turning speeds, truck considerations, pedestrian crossing distances, and resulting island sizes. Channelized right-turn lanes provide one method for accommodating larger turning radii without widening the major-street pedestrian crossings and without increasing the intersection pavement area.
|
From page 137... ...
• A means of separating right-turning vehicles from other traffic at stop-controlled intersection approaches. The addition of a deceleration lane at the approach to a channelized right-turn lane provides an opportunity for motorists to safely slow down prior to reaching the crosswalk area at the turning roadway.
|
From page 138... ...
References 1. American Association of State Highway and Transportation Officials, A Policy on Geometric Design of Highways and Streets, 2004.
|
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.