Accuracy and safety : effects of different training procedures on a time- to- coincidence task.

Subjects watched video- taped sequences filmed from a vehicle travelling towards a signalised junction. Before it was reached, the junction was obscured and subjects were required to indicate when they would have reached the first set of signals. Independent groups of subjects watched identical films, underwent one of four training procedures, and then repeated the initial block of trials. Overall, relatively longer estimates of arrival time are observed as obscuration occurs closer to the junction.