As a new member I'm excited to be here and to ask my first questions.
I am currently working on my Bachelor's thesis about delay/cancellation management at aiports. I am a business engineer, so my knowledge about the air industry stems from curiosity rather than academic education. So bare with me if some questions are rather stupid
While examining the CODA Annual report for 2010 (http://www.eurocontrol.int/coda/public/standard_page/coda_public_application.html), I have stumbled across the different types of delay, as the report differentiates between ATFCM delay and "all-causes delay".
It cites the source of the data as:
This report gives an overview of the delay situation in the European Civil Aviation Conference Area. It is based on (1) the EUROCONTROL CODA database which contains delay data provided directly by airlines and (2) on EUROCONTROL CFMU data which provide details on most of IFR flights in the European Civil Aviation Conference (ECAC) area. This report has been prepared by the Central Office for Delay Analysis (CODA), a service of EUROCONTROL.
and explains the definition for delay as:
In this report the definition of the CFMU Air Traffic Flow and Capacity Management (ATFCM) departure delay is based on the difference between the planned off-block time and the calculated off-block time, taking into account slot time and estimated taxi time. Airline data from the CODA database contain real recorded delays provided to CODA by airlines is based on the difference between scheduled time of departure and off block time.
My first question therefore: can 10 minute delays in ATFCM be compared to 10 minute CODA database delays? It seems to me that they derive their values from different definitions (how is off-block time defined?) and thus cannot easily be compared.
2.: The report provides extensive coverage of "departure delays". However, it also provides information on the the average arrival delay, which is even greater. Do you know any statistics/have an educated guess on what the major contributor for delays occuring on route is?
3. Figure 32 discusses the primary delay causes and differentiates between "other weather" and "ATFCM weather". As far as I can see, this is due to the IATA-Codes so that only the weather at DEST is counted towards ATFCM Restrictions, while all other weather is counted towards IATA-codes 71-79. Is that correct?
4. Figure 20 describes 88.5% of all flights as "on time" by length of ATFCM delay. However, figure 32 credits ATFCM with 32.5% of all primary delay causes. As primary causes attribute for roughly 50% of the all delays, this should put ATFCM at about ~84% "on time". Is this caused by the difference mentioned in my first question?
5. As IATA codes only apply to delays, but not cancellations, are you aware of any cancellation statistics that provide cancellation data? Also, what department at airlines would be best suited for obtaining such data?
Thanks for your help!!