Sag Vertical Curve Design Criteria for Headlight Sight Distance (2013) / Chapter Skim
Currently Skimming:
Pages 4-6
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 4... ...
2 CHAPTER 2 REVIEW OF CURRENT AASHTO METHODOLOGIES The sag vertical curve requirements have not changed since 1965. The definition for the limits of sag vertical curves in the AASHTO guidelines in terms of length, speed, or grades is based on the assumption of a 1° uplight condition for headlamps (AASHTO, 2004)
|
From page 5... ...
3 distance that drivers can detect is decided by headlight SD, which is shown as "Sight Distance S" in Figure 2. Figure 2.
|
From page 6... ...
4 Figure 3. Sight distance and curve length on a sag curve.
|
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.