Guide for the Analysis of Multimodal Corridor Access Management (2018) / Chapter Skim
Currently Skimming:
Pages 80-82
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 80... ...
80 Description Vertical geometry elements of a driveway include the change in grade from the roadway cross slope to the slope of the driveway apron (grade breaks) , the minimum and maximum grade of the driveway, vertical curve design criteria, and vertical clearance to overhead obstacles (e.g., utility lines)
|
From page 81... ...
Driveway Vertical Geometry 81 Access Management Technique Performance Trends and Documented Performance Relationships Operations Safety Improve driveway vertical geometry. ↑ ↑ ↑ ↑ Table 58.
|
From page 82... ...
82 Guide for the Analysis of Multimodal Corridor Access Management Motor Vehicle Safety NCHRP Report 659 (5) recommends a maximum grade break without a vertical curve of 10% for crests and 9% for sags and as low as 7% for driveways where vehicles towing trailers would be common, based on measurements of 31 driveways with scrape marks.
|
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.