255
HMI Measures for Improved Sensemaking
FIGURE 15.4 M ini-trend information graphic.
FIGURE 15.5 Dynamic positioning ( DP) screen layout: two current industry practice examples that combine fixed and flexible content.
FIGURE 15.6 Alternative layout dedicating more screen space to fixed content.
TOWARD AN OVERVIEW DISPLAY DESIGN FOR DP OPERATION
Could a fixed ( spatially dedicated) overview display also help DPOs strengthen their
SA? Current industry DP systems also combine flexible and fixed elements in their
layouts. F igure 15.5 shows common DP system HMIs, illustrated in a two-screen setup.
Based on the “ critical information hidden from view” challenge that has been
identified, we wanted to investigate whether SA could be improved by extending the
screen area dedicated to fixed information. Figure 15.6 shows an alternative layout
design.
To assess the feasibility and effectiveness of this idea, three main questions need
to be answered: ( 1) Is it possible to define a unique set of s afety-critical information
elements that provides DPOs with “ the big picture” relevant in all (o r at least the most
safety-critical) situations? ( 2) Is it possible to present this information on a display
that is compact enough to fit within the DPOs field of view on typical bridge environments? (3 ) Could such a design improve DPO performance (s ensemaking and SA) in
safety-critical situations?
In Hurlen  & Bye ( 2020), we explored a possible design in order to exemplify
how an effective solution might be accomplished and made mock-ups suited for
Précédent

- 278/293

Suivant