At locations where the sight distance is deemed inadequate (see here), IA-21 provides that an additional RRFB may be installed in advance of the crosswalk, along with a crossing warning sign with an “AHEAD” or distance plaque. IA-21 also lays out additional specifications, including beacon ...
The outcome was the establishment of preferred types of advance signs at roundabouts. Surveys were then sent to members of the Project Steering Committee (PSC) to gauge preferences concerning a number of details related to these preferred signs, as well as other roundabout signs and markings. The...