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AI FREEZ TIME?? (Read 1041 times)

Jan 21^st, 2004 at 3:58pm

f-16 Offline
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???
Does anyone know if there is a way to shorten the "freez" time of an AI plane that sits for 15 Min. Causing trafic jams.
For example. I had one AI that taxied off a runway onto the taxiway and froze halfway, preventing the runway from being used until he "disapeared"15 Min. later. Is there a way to "shorten" this freez time?

Thanks for your help.

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Reply #1 - Jan 21^st, 2004 at 6:25pm

dyfly Offline
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Grin

I had that problem, assign more parking spots Grin

Grin

See if that will work.

dy

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Reply #2 - Jan 21^st, 2004 at 6:33pm

dyfly Offline
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Grin

And another,go to tools open the airport ,run Fault Finder.
dy

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Reply #3 - Jan 21^st, 2004 at 6:43pm

f-16 Offline
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Did those. Nothing changed. Thanks anyway dyfly.
I'm not sure if there is a way to shorten the freez time in FS2002. ??? ??? Sad

Sad

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Reply #4 - Jan 22^nd, 2004 at 11:51am

planespotter Offline
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Why is the plane sitting there for 15 minutes? Is there more than one RW where you can make the left one take off only and the right one for landings.

If there is an airshow with in 2 states of me I'm there&&&&&&

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Reply #5 - Jan 22^nd, 2004 at 12:32pm

f-16 Offline
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Yeah I did that with the runways. It's just that the plane taxis off the runway and stops dead. Does not happen often. But sometimes it will stop halfway off the runway. Like at the stop node. I wonder if I could add a regular node and see what happens?

Any thought?

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Reply #6 - Jan 22^nd, 2004 at 10:04pm

dyfly Offline
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Is this just one acft doing this freeze up?
In the FS2002\2004aircraft directory, there is a file called "default.dp" For some reason default.dp can be deleted or become corrupted. If your AI planes vanish, stop, after leaving the runway, default.dp should be re-installed from the first FS2002 /2004 CD or (look in the aircraft.cab file).

dy

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Reply #7 - Jan 23^rd, 2004 at 9:28am

f-16 Offline
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Actualy DYFLY it does not happen that often. I think I can live with it. I just wanted to see if anyone else has seen this occurance.

Hey how about aircraft that do a 180 on the runway to backtrack to the taxiway? I am getting lots of those. But I don't think it is possable to fix that. Has nyone seen this happen?

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Reply #8 - Jan 23^rd, 2004 at 1:50pm

planespotter Offline
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are both ends of the runway open or is there only one way to get to the runway.

If the nodes aren't connected it will make the AI turn around. I'm working on one airport right now to have AI helo's depart on 12/30. You can get to RW12 from the taxi way but to take off from 30 you need to taxi down the runway and then turnaround. There is no taxi ways to 30.

If there is an airshow with in 2 states of me I'm there&&&&&&

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Reply #9 - Jan 30^th, 2004 at 9:43pm

dyfly Offline
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yep I had that to happen. Open up AFCAD and click on tools,click on fault finder and like planespotter said ,see if the taxi way to the runway are connect and the hold lines needs to be within 225 feet of the runway.
A hold-short node will not work if it is too far from the edge of the runway. That will result in ATC never giving you takeoff clearance and AI aircraft will stop at the hold-short node and get stuck there or when it lands it will turn around and look for a connected taxi exit.

. The maximum distance seems to be just over 230 feet, but it is best to keep it under 225 feet (68.6 m) to be safe. Note that the maximum distance is from the edge of the runway, not the center line.

The program can display 225 foot radius circles around all the hold-short nodes to show the maximum allowable distance. This can be enabled by checking the Show Hold Short Limits item under the View menu, or by pressing the ‘H’ key.

Note that hold short distance limits are only crucial where AI aircraft actually enter the active runway for takeoff and I have also seen for landing. AI enter a runway at the taxiway entrances closest to the ends of the runway. Hold-short nodes at other locations along the runway will not normally be used for AI entry.

This limit does not apply to ILS hold-short nodes, which are apparently not used by AI or ATC.

Another problem can occur when two or more aircraft line up at a hold-short node for departure, the aircraft at the front of the line may get clearance and proceed to take off, but the aircraft behind him may become stuck. This problem is more likely to occur with smaller aircraft. This can be prevented by placing a normal (blue) node or an ILS hold-short node just behind the hold short node. Some experimenting has shown this second node should be no more that 70 feet (21.3 m) behind the hold-short node to work with all sizes of aircraft. As a rule of thumb, just place the nodes so they touch or overlap slightly. Grin

Grin

dy

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Reply #10 - Jan 31^st, 2004 at 11:38am

f-16 Offline
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Thanks for the info DYFLY. I still have a question about PAI making u-turns in the middle of the runway, between taxiways, after they have landed. It happens at EVERY airport in FS2002. I tried to add nodes to the runway and atach them to the stop node, but that did not work. ???

As for the AI freezing at the hold short spot, I just changed the active runway and the problem seems to be solved. All my hold short nodes are close enough to the runway, so that did not seem like the problem. But you say to try to add another node before the hold short one? ???

Please remember that I am running

FS2002

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Reply #11 - Feb 2^nd, 2004 at 4:16pm

dyfly Offline
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URL

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Reply #12 - Feb 4^th, 2004 at 10:17pm

dyfly Offline
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Yep 2002,still looking for info about this but nothing yet.I'll keep looking ,let me know if you find anything on this. Did you read the afcad help readme doc

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Reply #13 - Feb 5^th, 2004 at 9:15am

f-16 Offline
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Thanks DYFLY. I apreciate your help. I am also looking into fixing these problems. I have read everything in the AFCAD and PAI instructions and found little. I did add the extra node before the stop node. Seems to work. The planes don't seem to get "stuck" at the stop node now. Weird.

I am still trying to figure out the landing problem I mentioned. But nothing in AFCAD.

I just want to know if the landing problem is a FS problem or a AFCAD problem. I'm beginning to think it is FS's problem and can't be fixed. But I will keep looking.

Thanks for all your help.

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Reply #14 - Feb 5^th, 2004 at 9:52am

f-16 Offline
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Here is the reply that I got on Flight Simmers AFCAD Discussions forum..

"It's inherent in the way Flight Simulator works. Not a lot can be done about it without detailed tweaking of each airport.

Basically you have to try and have a node just a little down the runway from there planes reach taxi speed. Then hopefully there is a taxiway exit further down the runway which is closer than the one behind.

FS AI aircraft will turn go to the closest node when they reach taxi speed. If it is behind them they make the u-turn. The aircraft turns based on the radius set in the model file - which usually means turning into the grass.

On some airports you can fix this with a lot of work. On some airports it cannot be fixed because normal procedure is to back taxi."

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