Reasonable Alternatives for Grade-Separated Intersections
North Carolina has adopted the use of flashing yellow arrows (FYA+Y11 in many intersections across the state as a means…
An Assessment of Safety and Geometric Design Criteria for Diverging Diamond Interchanges
Guidelines for Left Turn Signal Phasing Options by Time of Day: A Safety and Operational Study
the primary goal for this research effort is to update the FHWA Divering Diamond Interchange Information Guide to provide detail…
Working Concept of Accessibility – Performance Measures for Usability of Crosswalks by Pedestrians with Vision Impairments
This research presents an analysis framework and associated performance measures for quantifying the accessibility of pedestrian crossings at modern roundabouts…
Work Zone Traffic Analysis & Impact Assessment
This report documents the final results and project summary of North Carolina Department of Transportation (NCDOT) research project 2012-36: Work…
User Perceptions of the Quality of Service on Shared Paths
Shared-use paths are becoming increasingly busy across the United States. Path designers need guidance on how wide to make new…
Simulator Study of Driver Responses to Pedestrian Treatments at Multilane Roundabouts
Previous studies have shown that roundabouts, especially multilane roundabouts, pose accessibility challenges to pedestrians with vision impairments, in part because…
Pedestrian and Bicycle Accomodations on Superstreets
The objective of this research was to consider the unique challenges for pedestrians and bicyclists at superstreet intersections and recommend…
NCHRP Report 674 – Crossing Solutions at Roundabouts and Channelized Turn Lanes for Pedestrians with Vision Disabilities
Crossing Solutions at Roundabouts and Channelized Turn Lanes for Pedestrians with Vision Disabilities is intended to provide practitioners with useful…
NCHRP 3-78b – Guidelines for the Application of Crossing Solutions at Roundabouts and Channelized Turn Lanes for Pedestrians with Vision Disabilities
This document is the draft final report of NCHRP Project 03-78b: Guidelines for the Application of Crossing Solutions at Roundabouts…