Guide for Pedestrian and Bicycle Safety at Alternative Intersections and Interchanges
In recent years, drivers have become accustomed to left turn flashing yellow arrows (FYA) as an indication to yield to…
ITRE Research Archives
At the core of ITRE’s mission is transportation research. Staff and graduate students conduct a variety of surface and air transportation studies that address today’s — and tomorrow’s — complex issues, many of which are best management practices.
Current Research
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…
the Use of Right Turn Flashing Yellow Arrows and Leading Pedestrian Intervals
the project will culminate in an update of the FHWA Diverging Diamond Interchange Information Guide. the update will focus on…