2004 - Chemical manufacture
The client was concerned that they were experiencing frequent incidents where human error was a cause. However, they did not understand why those errors were occurring and so did not know what to do to prevent them. Andy led a small team in assisting the client in analysing past incidents and suggesting preventative strategies. This required him to train his colleagues in the techniques to be used. The project started by assessing a selection of past incidents in order to identify if there were any recurrent themes. As well as his in depth knowledge of human factors, Andy able to provide a systematic approach to this assessment. From this, a number of error prone tasks were selected for further analysis. The error prone tasks were assessed using the 'Human Factors Assessment of safety critical tasks' methodology described in HSE report OTO 99:092. During workshops attended by site personnel, error prone tasks were assessed using Hierarchical Task Analysis (HTA) and Predictive Human Error Analysis (PHEA). From this, error reduction strategies were proposed.