Cost-Benefit Analysis in Air Traffic Management - Blessing Or Curse?

Many years ago we were enjoying the sun and aequipment, renewal cycles and so on, all vying for the
sandwich on Schiphol's observation deck during lunchsame airspace, airports and services, that there is no
hour when news came that one of the major airlinessuch thing as a credible, positive CBA for the whole
there had a new top executive who was neitherof the industry. In any given case, some airlines
pilot, nor engineer. He was a bean-counter! Iwould equip, others would delay, still others would try
remember the initial feeling of horror andto wiggle out of the requirement... each according to
consternation at what back then appeared nothingtheir temperament and circumstances. A positive
short of blasphemy. Of course, in the years since weCBA is not the silver bullet it is often claimed to be.
grew used to the idea that for leading an airline orThe effects of the cyclical airline business - Although
car manufacturer successfully you did not necessarilyairlines are much better now in managing the cyclical
have to know the difference between a car and annature of their business, the boom and bust cycles
airplane. You had to understand the costs involved incontinue to affect everyone. When in the boom and
making or operating them.delays grow up, almost anything that eases the
With the aviation industry, including airlines, ruled moredelays can have a good business case. The trouble is,
and more by the need to cut costs to survive,by the time the money needs to be spent, the bust
having commercial, rather than engineering talent atis on us, delays mostly disappear... with a dead
the top seemed indeed an increasingly good idea. Ifbusiness case as the result.
only they had taught them to understand costVision, strategy and mandate
benefit analyses properly!A fairly senior person at one of the US airlines once
What is a cost/benefit analysis?said to me when we were talking about the need to
Cost/benefit analysis or CBA for short is the toolintroduce something new to support the future air
through which managers are given an answer to thetraffic management paradigm: You give us a mandate
question: is there a proper return on investmentand it will be done. Otherwise not a chance in hell.
within a reasonable time and what is the risk (ofAirlines tend to look on mandates as something of
losing money) involved? On first sight this sounds likethe devil himself. With good reason too, as in the
a good thing and indeed, used properly a CBA is a bigpast many things had been mandated that cost the
help in making the right decision.industry millions without any return at all.
No new project is started these days without aBut if a positive CBA is not enough and mandates hail
CBA... Why do then some of us cringe when we hearfrom hell, what is the solution?
this abbreviation?How can we ensure that the many changes required
CBAs and airspace usersby the future ATM system, most of which will have
It is well known that airspace users and airlines inan impact on the aircrafts' "cost" side, can in fact be
particular, have a very short event horizon... Mostintroduced in time and across the industry?
things beyond three years or so disappear in the fogThe key words are VISION, FASTER TO MARKET,
of the unknown future. If an investment does notINDUSTRY STRATEGY and AGREED MANDATE.
provide the desired return within that period, forgetVision - airline executives must realise that refusing to
it...look beyond their financial models is in fact a
You can divide an aircraft into two parts. Everythingdisservice to the company. Things not bolted on the
to the left of the front exit is a cost; everything toaircraft today will come back to bite them in a few
the right is potential revenue. This is why airlines (withyears' time costing a good deal more. They must
a few notable exceptions) will spend millions on newlook beyond the horizon and invest in what is needed.
seats or passenger entertainment systems whileThis may sound like heresy to-day but it must
leaving the cockpit (you know, the bit to the left ofbecome common practice for long term viability.
the front door) to fend for itself and usually get newFaster to market - In aviation we prefer evolution to
stuff only when it is truly unavoidable. Unless safetyrevolution... But it is not really acceptable to mull over
is directly involved but that is another story.things (like which data link should we have....
The reason for this is simple and it is not the fault ofremember?) for a decade or more. Nobody will invest
the airlines as such. While projects for front and rearin things that become obsolete by the time the
must have a solid business case (supported by achoice is made. When the requirement is identified,
CBA), it is so much easier to make a business casethe solution must be agreed and marketed as soon
for the new seats than it is for air/ground digital linkas possible.
or ADS-B.Industry strategy - Many, many air traffic
If competitors are installing new seats or newmanagement strategies have been written over the
entertainment systems, so must we... That link thingyears, most of them ending up on bookshelves with
that will not bring money in the first 4-5 years canlittle benefit to the industry as a whole. They were
wait...either not shared by everyone or getting the
CBA horrorspartners to sign up took too long and the thing
From the past decade or so, a nice collection of airbecame obsolete. We must do better and agree a
traffic management CBA related horror stories standstrategy that covers the now as well as the
as silent warnings for the future. We must learn fromtomorrow and beyond.
those if we want to avoid the pitfalls in the future.Agreed mandate - Once the strategy is there and
When the CBA is negative - well this should beeveryone knows what has to be done (and yes, a
simple. No go! But many promising things have beencredible CBA has been produced) there must be a
thrown away simply because the CBA results weremandate that is agreed by the majority of the
not put into the proper context. An investment mayindustry. The mandate is needed to ensure that all
be needed even if it will not in itself bring benefitsplayers act in unison and that the benefits become
but it lays the foundation of something that will besomething one can actually plan on. Voluntary
hugely beneficial. The benefit bringing bits were overequipage is a nice concept but it does not work yet.
the event horizon...Is SESAR and NextGen the answer?
When the CBA is not credible - Thou shall have aThose even a little familiar with the US NextGen and
CBA for everything... Even for things that are so farthe European SESAR programs will recognise that
in the future that the input data are nothing butthings like faster-to-market and industry strategy are
educated, and often not even educated, guesses.integral parts of those initiatives.
The result is a CBA that lacks credibility and will beThe question is: are they going to handle the issue of
laughed at... not a good start for any long termcost/benefit analyses better and is the vision thing
project!any different to-day than it was 3 years ago? After
When the CBA is positive - this should be the aim,all, the problem with CBA's is not what they are but
the nice, comfortable starting shot for a positivehow they are used. A CBA must help in decision
decision. No way! Positive results are usuallymaking but not replace decisions...
contested by the industry not least because thereIs there real support for the required investment or
have been cases in the past where CBA results wereare things going to fall apart when the time comes to
cooked to show major benefits... only to be provenspend the money?
way out and without foundation. Defending a positiveBoth SESAR and NextGen are bigger than anything
CBA is as difficult as creating one...ever tried before in air traffic management. But size
The myth of airspace user reaction to a positiveand complexity alone are no guarantee for success...
CBA - It has been said often that if a proposedLearning the lessons of the past (including the CBA
project offers a positive, credible business case,horrors), understanding the reasons for past failures
airspace users will equip without a mandate. This is aand doing something about them in airline and ANSP
nice thought and I wish it were true. But it is not.boardrooms is what offers the best chance for
The trouble is, the industry is composed of so manysuccess.
players with so many different business models,