In x-plane 12 I get weird taxi routing in at least two airports KSAN and KSBA, where I get instructions to cross the runway assigned for takeoff and taxi along the other side of the runway. I tried to edit the airport taxiways without luck as I don’t understand the P2A logic. What is there in the taxi paths that is making P2A choose to cross the target runway unnecessarily, which is not the shorter or most logical taxi route?

Edited June 18, 20241 yr by joelpacheco

Have you imported the taxi data from X-Plane?  That usually fixes the problem.

If there is not a complete route to the end of the runway on the near side of the runway, then P2A will have to take you to the other side.  The Taxi route must be 100% complete to the end of the runway.  You can check  the current taxi paths and import your XP12 data in Taxi Mnt.

Dave

Thank you Dave. I did import the data from x-plane. The taxi paths and holdshort point seem identical for both sides of the runway.

Just looking at KSAN and taxiing to RW 09 from the parking north of the runway, there are no taxiways north of the runway and so you have to cross the runway.  I suspect something similar is happening at the other airport.

Dave

I think I got KSBA to work after editing the taxi waypoints. Not sure what did the trick tho. Very cool feature by the way.

I’ll try it again tomorrow and will modify KSAN when I have another chance.

I edited the taxi points to RW27 in KSAN, it now gives correct taxi instructions. But it is not as simple, sometimes I get the expected taxi route within the taxi maintenance tool but then requesting taxi from P2A still gives weird taxi instructions that don’t match the route given by the taxi maintenance tool. Then I restart P2A and finally get the route matching the route provided by the taxi maintenance tool.

I wonder if you need to add a feature to the taxi maintenance tool to erase some cache that P2A is using so it takes the changes made as you are editing.

After making changes in TaxiMnt, you need to restart P2A so the new data can be loaded and used by the controllers.

Dave