Random large TTOT gaps
Opened this issue · 6 comments
Sometimes CDM ignores the defined rate and applies separation much greater than it is supposed to, for example below:
The defined rate at time was 20/h, so 3 minute gaps between TTOTs. This is what is happening until DLH152, even if TAP1364 randomly has a 4 minute gap between him and the preceding.
But then DLH31X has a 6 minute gap, without any flow measure or CAD limitation. Even worse is TAP1697, that not only has a 9 minute gap to the preceding, it should have been able to be slotted in at TTOT 1533, between DLH152 and DLH31X, or even at TTOT 1545 between VLG298 and DAL273, where a 14 minute gap exists and could be used. It ends up with a 39 minute delay when it could have been 6 minutes with a TSAT at 1520.
These large gaps occur where there are a lot of departures, the full list looked like this:
More examples, gap between TTOT should be 3 minute again according to the rate:
TAP56 should have had no delay and departed first of everyone else, instead it took a 9 minute delay.
KLM1696 could have been TTOT 1725, iso 1728
RYR5WC should have had a TTOT ahead of everyone else at 1729
Hi @pinatacolada,
Thanks for the report, can you modify your config as sent in discord.
Then a new file will be created under the CDM folder such as CDM_data_LPPT
When this occurs, can you attach this file to have a complete look of the internal list.
I guess the same problem here at EDDB:
Started with EWG1TK (6 minutes interval
What is interesting is, that DLH25M gets slotted in front after I gave start-up approval for EWG1TK and DLH2AW (as there was no reason to give delay to them):
Rate for for EDDB is:
EDDB:A:25R:25L:D:25L:25R::30_15
EDDB:A:25L:25R:D:25R:25L::30_15
EDDB:A:25R,25L::D:25R,25L:::25_10
EDDB:A:07R:07L:D:07L:07R::30_25
EDDB:A:07L:07R:D:07R:07L::30_25
EDDB:A:07R,07L::D:07R,07L:::25_10
This evening both 25L and 25R were used for departures.
@rpuig2001 careful. EDDB has taxizones defined.
Hi all,
I have been trying to reproduce this issue with the latest version under development. Unfortunately I'm unable to reproduce it.
Do you have any clue or example (step by step) to reproduce this issue?