McG wrote: ↑Sat Sep 19, 2020 11:41 am
Do the figures account for both inbound and outbound pax?
Because if they do then the domestics totals should be the same for both airports. However the tables show discrepancies. Barra and Heathrow were two I noticed where the numbers were different.
How should they be the same?
Are you referring to capacity? These are actually passengers flown so don’t understand why you think the total should be the same.
They're inbound and outbound. What differences are you seeing? Table 12 shows only one entry for GLA - BRR and GLA - LHR so I'm not sure what differences you're seeing?
The international figures are two-way too. The number of passengers flying between GLA and LHR (i.e. the sum of those flying GLA to LHR and LHR to GLA) in August 2020 was 15,183 from Table 12.2. The table title could hardly be clearer: "Table 12.2 Domestic Air Passenger Traffic To and From Reporting Airports for August 2020"
McG wrote: ↑Sat Sep 19, 2020 8:19 pm
So GLA-LHR has slightly more than LHR-GLA which would give a total of just over 30K pax combined?
Where are you seeing this? The number was 15,183 as explained above.
I'd ignore 12.3 and work from 12.2.The notes elsewhere on the CAA's site state: "Please note the introduction of 12.3 Domestic Air Passenger Route Analysis with effect from January 2012. This is an alternative version of Table 12.2 Domestic Air Passenger Route Analysis table. Unlike Table 12.2, duplicated routes have not been removed on Table 12.3. Table 12.3 shows domestic passenger traffic as reported by each airport, any table totals, therefore, overstate the actual number of passengers. Totals reported by airports over a given airport pair are not necessarily the same"
The discrepancy in this example (0.2%) is trivial.