(1) Whether any audits have been done on rail signalling systems; if not, why not; if so, (a) when were these audits done, (b) what were the findings in each case and (c) what plans are in place to deal with the problem areas; (2) whether there are any statistics indicating the fatal accidents and deaths that were caused by poor signaling systems; if not, why not; if so, (a) what were the (i) statistics and (ii) costs involved in the past three financial years and (b) what are the further relevant details?