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2 results

  • An objective examination of consumer perception of nutrition information based on healthiness ratings and eye movements

  • Gary Jones, Miles Richardson
  • Journal:
    Public Health Nutrition / Volume 10 / Issue 3 / March 2007
    Published online by Cambridge University Press:
    01 March 2007, pp. 238-244
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  • Objective

    Previous research on nutrition labelling has mainly used subjective measures. This study examines the effectiveness of two types of nutrition label using two objective measures: eye movements and healthiness ratings.

    Design

    Eye movements were recorded while participants made healthiness ratings for two types of nutrition label: standard and standard plus the Food Standards Agency's ‘traffic light’ concept.

    Setting

    University of Derby, UK.

    Subjects

    A total of 92 participants (mean age 31.5 years) were paid for their participation. None of the participants worked in the areas of food or nutrition.

    Results

    For the standard nutrition label, participant eye movements lacked focus and their healthiness ratings lacked accuracy. The traffic light system helped to guide the attention of the consumer to the important nutrients and improved the accuracy of the healthiness ratings of nutrition labels.

    Conclusions

    Consumers have a lack of knowledge regarding how to interpret nutrition information for standard labels. The traffic light concept helps to ameliorate this problem by indicating important nutrients to which to pay attention.

  • An analysis of the fixed-cycle traffic-light problem

  • Richard Cowan
  • Journal:
    Journal of Applied Probability / Volume 18 / Issue 3 / September 1981
    Published online by Cambridge University Press:
    14 July 2016, pp. 672-683
    Print publication:
    September 1981

  • A realistic non-Poisson arrival process is used in a model for intersections controlled by fixed-cycle traffic lights. Average delays, queue sizes and percentage of delayed vehicles are derived. The distribution of the number of vehicles which pass through during the green phases is found. Certain model anomalies which are inherent in earlier work are eliminated by the use of this model.