When Goodge Street station was opened at the start of traffic the other week, the Online Battery Inverter was down, so the station had no back-up source of power. The Station Supervisor rang the DSM, pointing out that the Rule Book states that the station should therefore be closed. The DSM's repsonse? 'The rule book is only a guideline', showing the characteristic regard of a manager for staff and public safety. When the supervisor insisted, the DSM said he was on his way. It took him an hour and 10 mins to get there, by which time the engineers had all but fixed the problem.
This shows that supervisors need to have the confidence to stick to their guns, as management can't be trusted with our safety. It also shows the purpose and application of the rule book is to water down standards and make it up as they go along.