Forschungs- & Entwicklungsinformationsdienst der Gemeinschaft - CORDIS

Mathematical model to evaluate comfort

The main task of WP3 was to gather data regarding comfort of passengers on ships at sea by means of questionnaires and measurements. At the end, the data were complete of 4 ships, two large monohull cruise and two catamaran fast ferries, having made 33 trips, yielding a total of 3150 returned questionnaires. As a first step in charting comfort as a function of ship motion and other environmental factors, the questionnaire data have been analysed without making reference to ship motion and other environmental factors in WP5.1. It was the aim of this study to 1 - determine the most important effects observed (which may be of importance to specific operators, for example), 2 - to settle which discomfort entities should be analysed in WP5.2 regarding the recorded ship motion and environmental measures, and 3 - to determine how these discomfort entities should be adjusted for age, gender, and other factors, thus minimising the variability in predicted versus observed comfort values when taking motions into account in addition (WP5.2).

To that end, frequency tables were presented, and we looked for effects other than what might have been expected by mere coincidence using appropriate statistical tools (2 tests). These analyses were constrained to two-way interactions. These analyses showed that the discomfort entities illness, unsteadiness, satisfaction, and sleep disturbance behaved more or less independent, and/or were expected to behave differently depending on ship motion and the other recorded environmental factors. Of these four factors, only illness was significantly dependent on age, gender, and sickness history. The COMPASS data showed a clear relationship that could be used to quantify these latter effects with a minimum of parameters. This result was judged to be of interest to a broader public, why a manuscript on this topic has been submitted to the European peer reviewed journal Ergonomics.

The three main conclusions from this task were that:
- Seasickness was the most obvious factor contributing to passenger discomfort aboard ships,

- Illness (seasickness) should be adjusted for age, gender, and sickness history, before being used to analyse the effect of ship motion in WP5.2,

- Other factors that should be taken into account, besides seasickness, are unsteadiness, satisfaction, and sleep disturbance, and these factors do not require further adjustments for age, gender, etc.

Verwandte Informationen

Reported by

Folgen Sie uns auf: RSS Facebook Twitter YouTube Verwaltet vom Amt für Veröffentlichungen der EU Nach oben