The cost-benefit ratio. In other words, it's $21 of investment for $1 of saving.
On April 24th, 2012. See this statement in context.
On April 24th, 2012. See this statement in context.
Director General, Rail Safety, Department of Transport
The cost-benefit ratio. In other words, it's $21 of investment for $1 of saving.
See context to find out what was said next.