Connelly, M.L., Isler, R.B. & Parsonson, B.S. (1996). Child pedestrians’ judgements of safe crossing gaps at three different vehicle approach speeds: a preliminary study. Education and Treatment of Children, 19(1), 19-29.

Judgements made by four children between seven and nine years of age regarding the safety of crossing a road in front of an approaching vehicle were studied. All participants consistently allowed smaller safety gaps as vehicle speeds increased, and three children often made potentially dangerous decisions at high vehicle speeds.