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 1...
... S U M M A R Y Based on the findings of this study, roundabouts appear to be successful in a wide variety of environments in the United States. The following sections summarize the major conclusions from this study.
From page 2...
... 2Because driver behavior appears to be the largest variable affecting roundabout performance, calibration of the models to account for local driver behavior and changes in driver experience over time is highly recommended to produce accurate capacity estimates. The exponential model parameters can be calibrated using locally measured parameters as follows: where c = entry capacity (pcu/h)
From page 3...
... in FHWA's Roundabouts: An Informational Guide. These findings should be considered interim until a more comprehensive study of sight distance needs at roundabouts can be completed.
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.