A maths puzzle

[DaveReading]

The chances of a publicly available ranking system calculated using a publicly available methodology and published by a major international airport waiting for a government decision and public support to approve a major investment being calculated wrong are approximately zero.

It's not impossible that the ranking has been designed to favour a particular airline, and at least one of the metrics depends directly on decisions made by ATC, so in theory could be frigged by favouring the planes of a particular airline, but it's extremely unlikely that the calculations are flawed. It's more likely that you've cocked up somewhere.

Two minutes with Excel, though it won't get you as far as determining the actual results, would be enough to demonstrate that the published ones can't possibly be correct if the published methodology has been used.

Your faith in big business is touching.

 

[srw]

Two minutes with Excel, though it won't get you as far as determining the actual results, would be enough to demonstrate that the published ones can't possibly be correct if the published methodology has been used.

Your faith in big business is touching.

It's my experience of big business, particularly strictly regulated big business, and particularly strictly regulated big business with a major brand and therefore major reputational risk potential. Heathrow has an army of accountants and on such an important and high-profile subject will have partnered with an independent consultancy.

If you believe you've got something, go and talk to someone in one of the pressure groups or at Private Eye.

 

[DaveReading]

If you believe you've got something, go and talk to someone in one of the pressure groups or at Private Eye.

Actually, I'd rather Heathrow just fixed it, now that my arithmetic has had the CC seal of approval.

I've contacted the appropriate department and invited them to send me a worked example of how any one of those scores is calculated.

If you're right, presumably they will respond demonstrating that I'm talking b*ll*cks. Either way, I'll share any response here.