Abstract
Inferring the future intentions and courses of aircraft or ships at various points in time can be problematic for traffic controllers. In this paper, a new graphical display concept is presented, comprising predictive information about the times, locations, and probabilities of potential traffic conflicts. Twelve participants engaged in a ship control conflict avoidance task. Results indicate that during the first block of experimental trials participants used significantly fewer manoeuvres to resolve potential conflicts and did so with better overall scores when using the new graphical display, as compared to the conventional format. However, during the second and third blocks of trials, performance did not significantly differ as a function of display condition. Nevertheless, subjective ratings strongly indicated participants' preferences for the new graphical format, suggesting that the new display format offers potential performance benefits for controllers of air and ship traffic.
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