Colour images 4 Human Factors in Design, Safety, and Management

Observed risk awareness in user centred design

Freija van Duijne, Heimrich Kanis, Andrew Hale, & Bill Green, Delft University of Technology

Extra to paper in D. de Waard, K.A. Brookhuis, R. van Egmond, and Th. Boersema (Eds.) (2005), Human Factors in Design, Safety, and Management (pp. 157 – 172). Maastricht, the Netherlands: Shaker Publishing.

Gas Lamps


Figure 1. Three types of gas lamps that feature different mechanisms by which a gas container is fixed in the casing.

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Figure 2. A screw thread separates the two parts of the casing of this gas lamp.

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Figure 3. A casing that needs to be «clicked» by a so-called click-finger

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Figure 4. The cartridge gets pierced when assembling the lamp unit.

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Figure 5. Arrows point to the direction in which to exert force and words («open», «close») indicated the mode of operation of the product.