Integration of Human Factor in Design Ergonomics: Example of a High Speed Train Cabin Design

The development of new technologies and technical progress has accelerated man/machine substitution. Work is disappearing in its human form. This technical progress has not avoided certain catastrophes occurring. These major disasters, both for man and for the environment, took place where reliability was at its highest level. The responsibility of the operator, of the human, the weak point in these systems, is of course quickly pointed out. Human error is thus incriminated. Of course, we do not speak of the accidents that have been avoided because of the intelligence of the operators. For us, the "key of success" of technical progress lies primarily in the adequacy between the performance of the new system, of the new product, etc and those who have to control it. Systems, products, etc, should not be reduced to their technical characteristics alone; they also have to integrate the human dimension. Ergonomics, although not being the only discipline concerned by the necessary change, can contribute greatly. In this context this paper presents an example of the contribution of ergonomics to a design project, where the ergonomist placed man at the centre of the design process. This project concerns the design of the driver's cab of the future TGV (high speed train). The approach requires a detailed analysis of the work activity, namely driving, which has both directed the design process and promoted the co-operation and collaboration between those involved in the design.