- Jan 16, 2009
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- Moderator
- #4,521
Interesting, thanks for posting. There’s a few things to take away from that not just the speculative forecasts!Sponsor has generally used up-to-date, credible, and referenced data sources appropriate to Stage 3. Sponsor is working on the basis of current
assumptions used to inform the planning application.
The key sources of data are the most up to date air transport movements available at the time of submission. Forecasts are likely to be
assumption driven and speculative based upon tentative commitments from airline operators that the Sponsor is entering into. This may reflect
the uncertainty of market conditions. Similarly, those assumptions would in turn drive the fleet mix serving the airport. They also help inform the
modal split between the runways. The assumption appears to be start from the split in runway use in 2022 which is proportionate.
The data upon flight patterns from General Aviation could be made more clearer. Assessment is based upon input from stakeholders and radar
data
Sponsor indicates the option 3 is the preferred option to take forward. It specifically emphasises the strategic impact from reducing the volume
of controlled airspace required and improving the integration with other airspace users including other airports. These are qualitative
judgements while the cost-benefit analysis suggests the quantified impacts may be worse.
There are some shortcomings in the methods used which have been highlighted by the Environmental Regulator and not reproduced here. The
remaining issues are in relation to uncertainty. For this reason, both options need to be re-appraised and also undergo design principle
evaluation to ensure they both remain safe and feasible
• The impact upon general aviation stakeholders
• The uncertainty underpinning forecasts of air transport movements.
• The impact of elevated jet fuel prices in the short run
There were other issues in the methods which have affected the presentation of the cost-benefit analysis.
Some of the impacts were not monetised because they were identical in both options. Air transport movements, passenger numbers and cargo
volumes were forecast to be the same in both options. Sponsor indicated further quantification would be identical for both options and
therefore disproportionate effort to do so. It would be disproportionate to quantify impacts where the evidence suggests that it would not affect the preferred decision between the options and the baseline.
@radar do you have a take on this?