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P3D v5 Many Hold Shorts??

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WIII87

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us-illinois
Probably a dumb question but what is the purpose of all these hold shorts? Thanks
max
 

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Because they have been incorrectly implemented. Hold short thresholds are to control runway incursion only. Placed at taxi intersections, they would represent an unmanageable burden to traffic control in a situation where individual pilots can see, interpret and react to all possible collisions; a state which is not the case, when a pilot is considering entering the runway, where he must check with the tower in regards to the approach of traffic which is still to distant for the pilot to see, interpret and react to properly.
 
I think the author of that AFCAD is confused over the use of nodes on paths, and is perhaps trying to prevent some of the unprototypical behaviour which is endemic to the FS9/FSX/P3D AI engine by applying some route priority control. As Rick says, they are superfluous and will have no effect on the AI engine.
 
Is it not a requirement that the circumference of the hold short range circle, cross the runway centerline? I know they can be too far from the runway, but I do not know the limit. Also, I see runway incursions that are not controlled by hold shorts, so while Tim is correct, the parking ones are just "funky," I'm pretty sure that runway hold short discrepancies will cause the airport to reject AI landings and takeoffs. So, if that's the issue, AI problems, I'd fix that runway stuff. Remove the taxi links or control them with hold shorts and confirm those range limits, adjust as necessary.
 
It is indeed a requirement - seek out posts passim from the inestimable jvile for an explanation. IIRC, it's 250ft. Basically, if the hold circle intersects the runway, you should be ok. So you're quite right - these holds may very well interfere with landing traffic as the AI engine may struggle to route landing traffic correctly.
 
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