Originally Posted by
CBreezy
Yes. I have. And I've never had a depressurization route. And there is no way if you are flying from LA to NYC, you can make it at 15,000-10,000 feet if you were planned at 35,000
DP routes are standard in Latin Terrain and lots of Mexico. It's to avoid hitting a mountain when you descend due to a depressurization.
You'd have to ask the Airbus folks what it does when it descends in an area that doesn't require a DP. My guess it'd just do the emergency descent for you to 10,000.
Software wise, it could be programmed to select the nearest suitable alternate (using a database with runway length, approaches, etc) and fly to that point and autoland. It's just coding. The framework is all there.