Hello, lovely people!

So, we have Denver. I marked IRL departures green, IRL arrivals red. ADE file DOES have X-wind activated.

Let's forget about the runway at the top right corner, too far. So if activated like this all the AI will go to 34L (leftmost vertical runway on the image). But it creates a terrible queue, even though the runway is departures only, it really makes a bad queue.

If additionally (for simulation purposes) I activated the horizontal bottom left runway (highlighted) - 95% of AI will go there.

My question is - WHY?

Before, I thought they would go to the nearest runway by direct distance.
Now let's see picture #2. Distance to 35L is 2000m and distance to RWY 25 is 2300m, but the still go there....

 

Edited December 12, 20241 yr by vl1

I am asking all this for ADE programming purposes, and I DO need a second runway for departures.
Thanx

You can edit any taxiway make it one way or closed, you can close the ends of runways for takeoff or landing. you can have 3 runways for takeoff and 3 for landing if you want, it`s a case of trial and error.

Edited December 12, 20241 yr by G-RFRY

1 hour ago, G-RFRY said:

You can edit any taxiway make it one way or closed, you can close the ends of runways for takeoff or landing. you can have 3 runways for takeoff and 3 for landing if you want, it`s a case of trial and error.

Thank you, but it seems you didn't understand my post at all)))
I am talking about how the AI will choose which runway it will depart from if all are available.

20 minutes ago, vl1 said:

Thank you, but it seems you didn't understand my post at all)))
I am talking about how the AI will choose which runway it will depart from if all are available.

That`s the problem you need to shut some taxiways and edit the end of some runways until you get the result you want. AI will take the shortest route from A to B. Even blocking a taxiway at one end of a terminal will change AI behavior.

2 hours ago, G-RFRY said:

That`s the problem you need to shut some taxiways and edit the end of some runways until you get the result you want. AI will take the shortest route from A to B. Even blocking a taxiway at one end of a terminal will change AI behavior.

It seems to me like you are teaching nuclear physics in a university and like riddles....

What you meant to say without your taxiway riddle is that AI will the SHORTEST route to the runway, but not the shortest "direct distance" as I mentioned.

Another thing I never thought P3D5 AI would obey ADE one way

7 minutes ago, vl1 said:

Another thing I never thought P3D5 AI would obey ADE one way

You should go to the ADE Forum in the help section at the top of ADE.

12 hours ago, vl1 said:

Hello, lovely people!

😮

13 hours ago, G-RFRY said:

You should go to the ADE Forum in the help section at the top of ADE.

Their forums is closed for a long time

P3D has some basic logic around aircraft size & runway size that can you can exploit to force AI onto certain runways. The sim has 3 (I believe) categories/tiers of aircraft, which is determined by (again, I believe) the weight values in the aircraft.cfg file. Each of these 3 categories/levels of aircraft has a different min rwy length requirement.

So for example, say you have two runways set for departures, but AI continue to use only one runway (closest). You could shorten the runway distance for the closest runway so that it is above the min rwy length value for aircraft tiers 1 & 2, but below the min rwy length value for tier 3. With this edit, all tier 3 aircraft would then start to use the second runway (farthest) for departures, on the logic basis that it is the only runway available & long enough for use.

These are the rwy length values that I've personally had success with:

Tier 1 (GA + some regionals): No greater than 1828.8m

Tier 2 (narrowbodies*): No greater than 2103.1m

Tier 3 (everything else): 2103.2m or longer

* A321/B739/B757 are defined as Tier 3 in my own sim. Again, I'm pretty sure this is set by weight in aircraft.cfg.

Here's my own EHAM as an example. 4 runways set for takeoffs, but 3 of them are set to 2103.1m to allow only tier 1 and 2 aircraft. The result is that tier 3 aircraft will be assigned the Polderbaan (36L - the farthest runway if you're unfamiliar) for takeoff: https://i.imgur.com/dnOqTeN.jpeg

 

Edited December 13, 20241 yr by drobinho

1 hour ago, vl1 said:

Their forums is closed for a long time

No it isn’t.

https://www.fsdeveloper.com/forum/forums/airport-design-editor.95/

I had a similar problem at EBBR when winds suggested 25R was best for departures but Ai were using 19. I asked what I could do to force 25R and the suggestion was to disable 19 for takeoffs.

2 hours ago, drobinho said:

P3D has some basic logic around aircraft size & runway size that can you can exploit to force AI onto certain runways. The sim has 3 (I believe) categories/tiers of aircraft, which is determined by (again, I believe) the weight values in the aircraft.cfg file. Each of these 3 categories/levels of aircraft has a different min rwy length requirement.

 

 

This is very useful.

I saw this method in several of your ADEs incl. FRA

 

2 hours ago, Ray Proudfoot said:

No it isn’t.

https://www.fsdeveloper.com/forum/forums/airport-design-editor.95/

I was looking in the wrong place

3 hours ago, drobinho said:

These are the rwy length values that I've personally had success with:

Tier 1 (GA + some regionals): No greater than 1828.8m

Tier 2 (narrowbodies*): No greater than 2103.1m

Tier 3 (everything else): 2103.2m or longer

* A321/B739/B757 are defined as Tier 3 in my own sim. Again, I'm pretty sure this is set by weight in aircraft.cfg.

Indeed ..... I notice similar behaviour using these tweaks at some of my airports though I struggle a tad as to which weight is used.

At Haneda for example, I used lighter max gross for domestic widebodies but they still used the longer runway as the heavier internationals rather than 05 as seen on FR24.