Blind and Sighted Pedestrians' Judgments of Gaps in Traffic at Roundabouts. - David Guth; Daniel H. Ashmead; Richard Long; Robert S. Wall Emerson; Paul E. Ponchillia (Hum. Factors, 2005)

Blind and Sighted Pedestrians' Road-Crossing Judgments at a Single-Lane Roundabout. - David Guth; Richard Long; Robert S. Wall Emerson; Paul E. Ponchillia; Daniel H. Ashmead (Hum. Factors, 2013)